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Kita-Ioto

Photo of this volcano
  • Japan
  • Ogasawara Volcanic Arc
  • Composite | Stratovolcano
  • 2022 CE
  • Country
  • Volcanic Province
  • Landform | Volc Type
  • Last Known Eruption
  • 25.424°N
  • 141.284°E

  • 792 m
    2598 ft

  • 284110
  • Latitude
  • Longitude

  • Summit
    Elevation

  • Volcano
    Number

Most Recent Weekly Report: 10 May-16 May 2023 Citation IconCite this Report

Japan Coast Guard reported that a small area of bluish-white discolored water above Funka Asane, a submarine vent 4-5 km NW of Kita-Ioto, was visible on 11 May. This was the first time discolored water was seen over the vent in about two years.

Source: Japan Coast Guard


Most Recent Bulletin Report: June 2022 (BGVN 47:06) Citation IconCite this Report

Submarine eruption in late March-April 2022

Kita-Ioto (also known as “Kita-Iwo Jima”) is located about 1,100 km S of Tokyo, Japan. It is a highly eroded stratovolcano with a steep-sided cone that rises about 800 m above the ocean surface. Eruptions from the Funka Asane submarine vent, 4-5 km NW of the main cone (figure 1), have been recorded since 1780, characterized by submarine eruptions during 1780, 1880, and 1930-1945, discolored seawater, and some degassing. This report summarizes previous events of discolored water and degassing, and includes a more recent events consisting of an eruption plume and discolored water during March-April 2022. Information for this report comes primarily from the Japan Coast Guard (JCG), the Japan Meteorological Agency (JMA), the Tokyo Volcanic Ash Advisory Center (VAAC), and satellite data.

Figure (see Caption) Figure 1. Bathymetric and topographic map showing the island of Kita-Ioto on the right and the submarine Funka Asane cone to the NW. Courtesy of JCG.

Summary of activity. Visual observations of discolored water, and later, occasional degassing bubbles have been made at Funka Asane since May 1953 (table 1). Discolored water typically originates from a point source and appears pale green, yellow-green, blue-white, or milky white; on 5 November 2003, for example, discolored bluish-white water was visible from a single point (figure 2). Some of the discolored areas extended in different directions for 10-200 m, the latter of which occurred on 26 January 2000 and 10 March 2003. On 25 January 2000 three points of bluish-white discolored water appeared at 1410-1425. Pumice-like material was observed floating to the NE of the discolored water with a width of over 500 m and a length of 1.5 km. By the 26th during 0925-0930, the three points decreased to two points and the thin, milky white discolored water extended 200 m NNW, and no floating material was observed. On 16 March 2006 bubbles were first observed during 0942-0949. This type of event occurred intermittently through 9 March 2012. During 1330-1334 on 5 August 2021 light blue-white discolored water was reported by JCG to the S of Kita-Ioto. JCG also made observation flights over the area where they noted no activity. These flights were made on 14 June 2005, 26 February 2009, 30 June 2013, 17 August 2015, 24 December 2016, 24 March 2017, 11 December 2017, 18 July 2018, 29 January 2019, 19 November 2019, 8 June 2021, 9 July 2021, 11 November 2021, 27 December 2021, 15 March 2022, and 29 March 2022.

Table 1. Summary of observations made at Funka Asane between May 1953 and August 2021 by Japanese authorities. The Japan Coast Guard visited the site intermittently, noting occasional water discoloration, degassing bubbles, and one observation of floating material. Data from JMA (Japan Meteorological Agency) and JCG (Japan Coast Guard).

Date Eruption event Description Source
May 1953 Seawater discoloration Whitening and sulfur smell. JMA (2005), List of active volcanoes in Japan (3rd edition)
Aug 1968 Seawater discoloration -- JMA (2005), List of active volcanoes in Japan (3rd edition)
Jun 1982 Seawater discoloration -- JMA (2005), List of active volcanoes in Japan (3rd edition)
Jul 1983 Seawater discoloration -- JMA (2005), List of active volcanoes in Japan (3rd edition)
Aug 1987 Seawater discoloration -- JMA (2005), List of active volcanoes in Japan (3rd edition)
Jul 1989 Seawater discoloration -- JMA (2005), List of active volcanoes in Japan (3rd edition)
10 Mar 1997 Seawater discoloration Small area of pale green discolored water. JCG, Oceanographic Information Department (2006), Marine volcano database
21 May 1998 Seawater discoloration Yellow discolored water 10 m long, and green discolored water. JCG, Oceanographic Information Department (2006), Marine volcano database
27 Oct 1998 Seawater discoloration Green discolored water, and two spots of blue-white discolored water about 500 m SE of Asane. JCG, Hydrographic Department (1999), Recent activities of submarine volcanoes
07 Sep 1999 Seawater discoloration Pale yellow-green discolored water with a diameter of about 50 m at two locations near 25°27.3’N and 141°13.4’E. JCG, Oceanographic Information Department (2006), Marine volcano database
16 Sep 1999 Seawater discoloration Discolored water about 40 m in diameter. JCG, Oceanographic Information Department (2006), Marine volcano database
25 Jan 2000 Seawater discoloration Three spots of blue-white discolored water during 1410-1425. Area of “pumice-like material” over 500 m wide flowing 1.5 km NE from the discolored water. JCG, Oceanographic Information Department (2006), Marine volcano database
26 Jan 2000 Seawater discoloration The three spots of discolored water had decreased to two points when seen at 0925-0930; thin milky white discolored water with a length of 200 m extending NNW and no floating material. JCG, Oceanographic Information Department (2006), Marine volcano database
30 Oct 2000 Seawater discoloration Small area of blue-white discolored water. JCG, Oceanographic Information Department (2006), Marine volcano database
29 Oct 2001 Seawater discoloration A fan-shaped area of blue-white discolored water was about 100 m in diameter. Yellow-green discolored water with a diameter of about 500 m was located about 2 km W of the volcano. JCG, Oceanographic Information Department (2006), Marine volcano database
28 Feb 2002 Seawater discoloration Two circular blue-white discolored water spots with a diameter of about 200 m. JCG, Oceanographic Information Department (2006), Marine volcano database
10 Mar 2003 Seawater discoloration A blue-green shoal was visible, but no volcanic activity was observed. Light yellow-green discolored water with a length of about 200 m originating from two locations about 500 m E of shallow water and extending NE. JCG, Oceanographic Information Department (2006), Marine volcano database
04 Nov 2003 Seawater discoloration Intermittent blue-white discolored water with a diameter of about 50-100 m. JCG, Oceanographic Information Department (2006), Marine volcano database
16 Mar 2006 Bubbling Some degassing bubbles observed during 0942-0949. JCG
22 Jan 2007 Bubbling Some degassing bubbles observed during 1347-1350. JCG
20 Mar 2007 Discolored water and bubbling Some degassing bubbles observed during 1234-1243 and yellow-green discolored water was about 50 x 100 m extending NW. JCG
11 Jul 2007 Discolored water and bubbling Some degassing bubbles and discolored milky water with a diameter of about 10 m seen during 1148-1152. JCG
17 Oct 2007 Bubbling Some bubbling observed during 1330-1345. JCG
12 Feb 2008 Bubbling Some bubbling observed at 1240. JCG
20 Jul 2008 Discolored water and bubbling Elliptical area of blue-white water about 50 x 150 m. Some degassing bubbles were also observed during 1320-1327. JCG
24 Dec 2009 Discolored water and bubbling Discolored blue-white water and degassing bubbles observed during 1155-1202. JCG
29 Sep 2010 Discolored water Discolored blue water had a diameter of 20 m during 1354-1412. JCG
8 Feb 2011 Discolored water Discolored blue water had a diameter of 20 m during 1244-1316. JCG
16 Nov 2011 Discolored water and bubbling Light blue discolored water had a diameter of 20-30 m accompanied by bubbling during 1153-1203 and 1333-1342. JCG
9 Mar 2012 Discolored water and bubbling Discolored blue and light brown water had a diameter of 50 m accompanied by bubbling during 1247-1253. JCG
21 Aug 2012 Discolored water Some light green and a small amount of pale blue discolored water extended E during 1415-1419 JCG
26 Mar 2013 Discolored water Milky white water observed N of the volcano and blue-white discoloration to the SE. JCG
29 Mar 2016 Discolored water Pale blue-white discolored water at three points with a diameter of 30-100 m during 1350-1430. JCG
28 Jun 2017 Discolored water Pale blue-white discolored water 50 m in diameter during 1431-1438. JCG
05 Aug 2021 Discolored water Light blue-white discolored water S of the volcano during 1330-1334. JCG
Figure (see Caption) Figure 2. Photo of blue-white discolored water originating from a single point at the Funka Asane submarine vent of Kita-Ioto on 5 November 2003 (black arrow). Courtesy of JCG.

Activity during March-April 2022. A submarine eruption at Funka Asane was reported by JMA based on satellite images at 1800 on 27 March 2022. An eruption plume rose to 5.5 km altitude at 2100 and may have contained some ash (figure 3). By 2330 and through at least 0300 on 28 March, the plume had risen to 7 km altitude, according to HIMAWARI satellite images (figure 3). The altitude of the plume had dropped to 3.6 km at 0820 on 28 March, and by 1420 it was no longer visible. Aerial observations by JCG on 29 March did not detect discolored water or floating objects surrounding Funka Asane.

Figure (see Caption) Figure 3. HIMAWARI meteorological satellite images showing eruption plumes rising from Funka Asane on 27 March (left) and 28 March 2022 (right). The image on the left was taken around 2100 and the plume rose to 5.5 km altitude and drifted NE. By 2330 that same day, the plume was confirmed to have risen to 7 km altitude. The white arrow points to Kita-Ioto in relationship to the point of origin for the eruption plume. The image on the right taken at 0000 on 28 March 2022 shows the plume continuing to drift NE (blue dotted circle). Courtesy of HIMAWARI via JMA (volcanic activity bulletin at Asane, March 28, 2020 01:50).

A small amount of brown floating material was observed during 1329-1400 on 18 April, originating from the N crater, about 5 km SE from Funka Asane, according to observations made by JCG. Some light brown and yellow-green discolored water were seen off the N coast to the W coast of the volcano (figure 4).

Figure (see Caption) Figure 4. Aerial images showing the north side (left) and west side (right) of Kita-Ioto on 18 April 2022. Light brown and yellow-green discolored water were observed from the N coast to the W coast of the island. Courtesy of JCG.

Information Contacts: Japan Coast Guard (JCG) Volcano Database, Hydrographic and Oceanographic Department, 3-1-1, Kasumigaseki, Chiyoda-ku, Tokyo 100-8932, Japan (URL: https://www1.kaiho.mlit.go.jp/GIJUTSUKOKUSAI/kaiikiDB/kaiyo18-e1.htm); Japan Meteorological Agency (JMA), 1-3-4 Otemachi, Chiyoda-ku, Tokyo 100-8122, Japan (URL: http://www.jma.go.jp/jma/indexe.html); Tokyo Volcanic Ash Advisory Center (VAAC), 1-3-4 Otemachi, Chiyoda-ku, Tokyo 100-8122, Japan (URL: http://ds.data.jma.go.jp/svd/vaac/data/).

Weekly Reports - Index


2023: May
2022: March


10 May-16 May 2023 Citation IconCite this Report

Japan Coast Guard reported that a small area of bluish-white discolored water above Funka Asane, a submarine vent 4-5 km NW of Kita-Ioto, was visible on 11 May. This was the first time discolored water was seen over the vent in about two years.

Source: Japan Coast Guard


23 March-29 March 2022 Citation IconCite this Report

JMA reported that a submarine eruption occurred at Funka Asane, a submarine vent 4-5 km NW of Kita-Ioto, at around 1800 on 27 March based on satellite images. An eruption plume was visible rising to 5.5 km (18,000 ft) a.s.l. at 2100 and may have contained ash. Eruption warnings and maritime warnings were issued at 2314 and 2318, respectively. Satellite images showed that by 2330 the plume had risen to 7 km (23,000 ft) a.s.l. Areas of discolored water and bubbling were also visible.

Source: Japan Meteorological Agency (JMA)


Bulletin Reports - Index

Reports are organized chronologically and indexed below by Month/Year (Publication Volume:Number), and include a one-line summary. Click on the index link or scroll down to read the reports.

06/2022 (BGVN 47:06) Submarine eruption in late March-April 2022




Information is preliminary and subject to change. All times are local (unless otherwise noted)


June 2022 (BGVN 47:06) Citation IconCite this Report

Submarine eruption in late March-April 2022

Kita-Ioto (also known as “Kita-Iwo Jima”) is located about 1,100 km S of Tokyo, Japan. It is a highly eroded stratovolcano with a steep-sided cone that rises about 800 m above the ocean surface. Eruptions from the Funka Asane submarine vent, 4-5 km NW of the main cone (figure 1), have been recorded since 1780, characterized by submarine eruptions during 1780, 1880, and 1930-1945, discolored seawater, and some degassing. This report summarizes previous events of discolored water and degassing, and includes a more recent events consisting of an eruption plume and discolored water during March-April 2022. Information for this report comes primarily from the Japan Coast Guard (JCG), the Japan Meteorological Agency (JMA), the Tokyo Volcanic Ash Advisory Center (VAAC), and satellite data.

Figure (see Caption) Figure 1. Bathymetric and topographic map showing the island of Kita-Ioto on the right and the submarine Funka Asane cone to the NW. Courtesy of JCG.

Summary of activity. Visual observations of discolored water, and later, occasional degassing bubbles have been made at Funka Asane since May 1953 (table 1). Discolored water typically originates from a point source and appears pale green, yellow-green, blue-white, or milky white; on 5 November 2003, for example, discolored bluish-white water was visible from a single point (figure 2). Some of the discolored areas extended in different directions for 10-200 m, the latter of which occurred on 26 January 2000 and 10 March 2003. On 25 January 2000 three points of bluish-white discolored water appeared at 1410-1425. Pumice-like material was observed floating to the NE of the discolored water with a width of over 500 m and a length of 1.5 km. By the 26th during 0925-0930, the three points decreased to two points and the thin, milky white discolored water extended 200 m NNW, and no floating material was observed. On 16 March 2006 bubbles were first observed during 0942-0949. This type of event occurred intermittently through 9 March 2012. During 1330-1334 on 5 August 2021 light blue-white discolored water was reported by JCG to the S of Kita-Ioto. JCG also made observation flights over the area where they noted no activity. These flights were made on 14 June 2005, 26 February 2009, 30 June 2013, 17 August 2015, 24 December 2016, 24 March 2017, 11 December 2017, 18 July 2018, 29 January 2019, 19 November 2019, 8 June 2021, 9 July 2021, 11 November 2021, 27 December 2021, 15 March 2022, and 29 March 2022.

Table 1. Summary of observations made at Funka Asane between May 1953 and August 2021 by Japanese authorities. The Japan Coast Guard visited the site intermittently, noting occasional water discoloration, degassing bubbles, and one observation of floating material. Data from JMA (Japan Meteorological Agency) and JCG (Japan Coast Guard).

Date Eruption event Description Source
May 1953 Seawater discoloration Whitening and sulfur smell. JMA (2005), List of active volcanoes in Japan (3rd edition)
Aug 1968 Seawater discoloration -- JMA (2005), List of active volcanoes in Japan (3rd edition)
Jun 1982 Seawater discoloration -- JMA (2005), List of active volcanoes in Japan (3rd edition)
Jul 1983 Seawater discoloration -- JMA (2005), List of active volcanoes in Japan (3rd edition)
Aug 1987 Seawater discoloration -- JMA (2005), List of active volcanoes in Japan (3rd edition)
Jul 1989 Seawater discoloration -- JMA (2005), List of active volcanoes in Japan (3rd edition)
10 Mar 1997 Seawater discoloration Small area of pale green discolored water. JCG, Oceanographic Information Department (2006), Marine volcano database
21 May 1998 Seawater discoloration Yellow discolored water 10 m long, and green discolored water. JCG, Oceanographic Information Department (2006), Marine volcano database
27 Oct 1998 Seawater discoloration Green discolored water, and two spots of blue-white discolored water about 500 m SE of Asane. JCG, Hydrographic Department (1999), Recent activities of submarine volcanoes
07 Sep 1999 Seawater discoloration Pale yellow-green discolored water with a diameter of about 50 m at two locations near 25°27.3’N and 141°13.4’E. JCG, Oceanographic Information Department (2006), Marine volcano database
16 Sep 1999 Seawater discoloration Discolored water about 40 m in diameter. JCG, Oceanographic Information Department (2006), Marine volcano database
25 Jan 2000 Seawater discoloration Three spots of blue-white discolored water during 1410-1425. Area of “pumice-like material” over 500 m wide flowing 1.5 km NE from the discolored water. JCG, Oceanographic Information Department (2006), Marine volcano database
26 Jan 2000 Seawater discoloration The three spots of discolored water had decreased to two points when seen at 0925-0930; thin milky white discolored water with a length of 200 m extending NNW and no floating material. JCG, Oceanographic Information Department (2006), Marine volcano database
30 Oct 2000 Seawater discoloration Small area of blue-white discolored water. JCG, Oceanographic Information Department (2006), Marine volcano database
29 Oct 2001 Seawater discoloration A fan-shaped area of blue-white discolored water was about 100 m in diameter. Yellow-green discolored water with a diameter of about 500 m was located about 2 km W of the volcano. JCG, Oceanographic Information Department (2006), Marine volcano database
28 Feb 2002 Seawater discoloration Two circular blue-white discolored water spots with a diameter of about 200 m. JCG, Oceanographic Information Department (2006), Marine volcano database
10 Mar 2003 Seawater discoloration A blue-green shoal was visible, but no volcanic activity was observed. Light yellow-green discolored water with a length of about 200 m originating from two locations about 500 m E of shallow water and extending NE. JCG, Oceanographic Information Department (2006), Marine volcano database
04 Nov 2003 Seawater discoloration Intermittent blue-white discolored water with a diameter of about 50-100 m. JCG, Oceanographic Information Department (2006), Marine volcano database
16 Mar 2006 Bubbling Some degassing bubbles observed during 0942-0949. JCG
22 Jan 2007 Bubbling Some degassing bubbles observed during 1347-1350. JCG
20 Mar 2007 Discolored water and bubbling Some degassing bubbles observed during 1234-1243 and yellow-green discolored water was about 50 x 100 m extending NW. JCG
11 Jul 2007 Discolored water and bubbling Some degassing bubbles and discolored milky water with a diameter of about 10 m seen during 1148-1152. JCG
17 Oct 2007 Bubbling Some bubbling observed during 1330-1345. JCG
12 Feb 2008 Bubbling Some bubbling observed at 1240. JCG
20 Jul 2008 Discolored water and bubbling Elliptical area of blue-white water about 50 x 150 m. Some degassing bubbles were also observed during 1320-1327. JCG
24 Dec 2009 Discolored water and bubbling Discolored blue-white water and degassing bubbles observed during 1155-1202. JCG
29 Sep 2010 Discolored water Discolored blue water had a diameter of 20 m during 1354-1412. JCG
8 Feb 2011 Discolored water Discolored blue water had a diameter of 20 m during 1244-1316. JCG
16 Nov 2011 Discolored water and bubbling Light blue discolored water had a diameter of 20-30 m accompanied by bubbling during 1153-1203 and 1333-1342. JCG
9 Mar 2012 Discolored water and bubbling Discolored blue and light brown water had a diameter of 50 m accompanied by bubbling during 1247-1253. JCG
21 Aug 2012 Discolored water Some light green and a small amount of pale blue discolored water extended E during 1415-1419 JCG
26 Mar 2013 Discolored water Milky white water observed N of the volcano and blue-white discoloration to the SE. JCG
29 Mar 2016 Discolored water Pale blue-white discolored water at three points with a diameter of 30-100 m during 1350-1430. JCG
28 Jun 2017 Discolored water Pale blue-white discolored water 50 m in diameter during 1431-1438. JCG
05 Aug 2021 Discolored water Light blue-white discolored water S of the volcano during 1330-1334. JCG
Figure (see Caption) Figure 2. Photo of blue-white discolored water originating from a single point at the Funka Asane submarine vent of Kita-Ioto on 5 November 2003 (black arrow). Courtesy of JCG.

Activity during March-April 2022. A submarine eruption at Funka Asane was reported by JMA based on satellite images at 1800 on 27 March 2022. An eruption plume rose to 5.5 km altitude at 2100 and may have contained some ash (figure 3). By 2330 and through at least 0300 on 28 March, the plume had risen to 7 km altitude, according to HIMAWARI satellite images (figure 3). The altitude of the plume had dropped to 3.6 km at 0820 on 28 March, and by 1420 it was no longer visible. Aerial observations by JCG on 29 March did not detect discolored water or floating objects surrounding Funka Asane.

Figure (see Caption) Figure 3. HIMAWARI meteorological satellite images showing eruption plumes rising from Funka Asane on 27 March (left) and 28 March 2022 (right). The image on the left was taken around 2100 and the plume rose to 5.5 km altitude and drifted NE. By 2330 that same day, the plume was confirmed to have risen to 7 km altitude. The white arrow points to Kita-Ioto in relationship to the point of origin for the eruption plume. The image on the right taken at 0000 on 28 March 2022 shows the plume continuing to drift NE (blue dotted circle). Courtesy of HIMAWARI via JMA (volcanic activity bulletin at Asane, March 28, 2020 01:50).

A small amount of brown floating material was observed during 1329-1400 on 18 April, originating from the N crater, about 5 km SE from Funka Asane, according to observations made by JCG. Some light brown and yellow-green discolored water were seen off the N coast to the W coast of the volcano (figure 4).

Figure (see Caption) Figure 4. Aerial images showing the north side (left) and west side (right) of Kita-Ioto on 18 April 2022. Light brown and yellow-green discolored water were observed from the N coast to the W coast of the island. Courtesy of JCG.

Information Contacts: Japan Coast Guard (JCG) Volcano Database, Hydrographic and Oceanographic Department, 3-1-1, Kasumigaseki, Chiyoda-ku, Tokyo 100-8932, Japan (URL: https://www1.kaiho.mlit.go.jp/GIJUTSUKOKUSAI/kaiikiDB/kaiyo18-e1.htm); Japan Meteorological Agency (JMA), 1-3-4 Otemachi, Chiyoda-ku, Tokyo 100-8122, Japan (URL: http://www.jma.go.jp/jma/indexe.html); Tokyo Volcanic Ash Advisory Center (VAAC), 1-3-4 Otemachi, Chiyoda-ku, Tokyo 100-8122, Japan (URL: http://ds.data.jma.go.jp/svd/vaac/data/).

This compilation of synonyms and subsidiary features may not be comprehensive. Features are organized into four major categories: Cones, Craters, Domes, and Thermal Features. Synonyms of features appear indented below the primary name. In some cases additional feature type, elevation, or location details are provided.

Eruptive History

There is data available for 4 confirmed Holocene eruptive periods.

[ 2023 May 11 - 2023 May 11 ] Uncertain Eruption

Episode 1 | Eruption Episode
2023 May 11 - 2023 May 11 Evidence from Observations: Reported
 Japan Coast Guard reported that a small area of bluish-white discolored water above Funka Asane, a submarine vent 4-5 km NW of Kita-Ioto, was visible on 11 May.

List of 1 Events for Episode 1

Start Date End Date Event Type Event Remarks
2023 May 11    - - - - Observation Discolored water above Funka Asane.

2022 Mar 27 - 2022 Mar 27 Confirmed Eruption Max VEI: 1

Episode 1 | Eruption (Submarine) Episode Funka-Asane
2022 Mar 27 - 2022 Mar 27 Evidence from Observations: Reported
 A submarine eruption occurred at Funka-Asane on 27 March 2022. An eruption plume was visible rising to 5.5 km above the ocean surface and may have contained ash.

List of 2 Events for Episode 1 at Funka-Asane

Start Date End Date Event Type Event Remarks
2022 Mar 27    - - - - Eruption cloud An eruption plume was visible rising to 5.5 km above the ocean surface and may have contained ash.
2022 Mar 27    - - - - VEI (Explosivity Index) VEI 1

[ 2007 Jan 22 - 2007 Oct 17 ] Uncertain Eruption

Episode 1 | Uncertain Episode Funka-Asane
2007 Jan 22 - 2007 Oct 17 Evidence from Observations: Reported
 Observations of bubbling and discolored water during January-October 2007.

List of 4 Events for Episode 1 at Funka-Asane

Start Date End Date Event Type Event Remarks
2007 Jan 22    - - - - Degassing Some degassing bubbles observed during 1347-1350.
2007 Mar 20    - - - - Degassing Some degassing bubbles observed during 1234-1243 and yellow-green discolored water was about 50 x 100 m extending NW.
2007 Jul 11    - - - - Degassing Some degassing bubbles and discolored milky water with a diameter of about 10 m seen during 1148-1152.
2007 Oct 17    - - - - Degassing Some bubbling observed during 1330-1345.

[ 2006 Mar 10 - 2006 Mar 10 ] Uncertain Eruption

Episode 1 | Uncertain Episode Funka-Asane
2006 Mar 10 - 2006 Mar 10 Evidence from Observations: Reported

List of 1 Events for Episode 1 at Funka-Asane

Start Date End Date Event Type Event Remarks
2006 Mar 10    - - - - Degassing

[ 2003 Nov 4 - 2003 Nov 4 ] Uncertain Eruption

Episode 1 | Eruption Episode Funka-Asane
2003 Nov 4 - 2003 Nov 4 Evidence from Unknown

List of 1 Events for Episode 1 at Funka-Asane

Start Date End Date Event Type Event Remarks
2003 Nov 4    - - - - VEI (Explosivity Index)

[ 2003 Mar 10 - 2003 Mar 10 ] Uncertain Eruption

Episode 1 | Eruption Episode Funka-Asane
2003 Mar 10 - 2003 Mar 10 Evidence from Unknown

List of 1 Events for Episode 1 at Funka-Asane

Start Date End Date Event Type Event Remarks
2003 Mar 10    - - - - VEI (Explosivity Index)

[ 2002 Feb 28 - 2002 Feb 28 ] Uncertain Eruption

Episode 1 | Eruption Episode Funka-Asane
2002 Feb 28 - 2002 Feb 28 Evidence from Unknown

List of 1 Events for Episode 1 at Funka-Asane

Start Date End Date Event Type Event Remarks
2002 Feb 28    - - - - VEI (Explosivity Index)

[ 2001 Oct 29 - 2001 Oct 29 ] Uncertain Eruption

Episode 1 | Eruption Episode Funka-Asane
2001 Oct 29 - 2001 Oct 29 Evidence from Unknown

List of 1 Events for Episode 1 at Funka-Asane

Start Date End Date Event Type Event Remarks
2001 Oct 29    - - - - VEI (Explosivity Index)

[ 2000 Oct 30 - 2000 Oct 30 ] Uncertain Eruption

Episode 1 | Eruption Episode Funka-Asane
2000 Oct 30 - 2000 Oct 30 Evidence from Unknown

List of 1 Events for Episode 1 at Funka-Asane

Start Date End Date Event Type Event Remarks
2000 Oct 30    - - - - VEI (Explosivity Index)

[ 2000 Jan 25 - 2000 Jan 26 ] Uncertain Eruption

Episode 1 | Eruption Episode Funka-Asane
2000 Jan 25 - 2000 Jan 26 Evidence from Unknown

List of 1 Events for Episode 1 at Funka-Asane

Start Date End Date Event Type Event Remarks
2000 Jan 25    - - - - VEI (Explosivity Index)

[ 1999 Sep 7 - 1999 Sep 16 ] Uncertain Eruption

Episode 1 | Eruption Episode Funka-Asane
1999 Sep 7 - 1999 Sep 16 Evidence from Unknown

List of 1 Events for Episode 1 at Funka-Asane

Start Date End Date Event Type Event Remarks
1999 Sep 7    - - - - VEI (Explosivity Index)

[ 1998 Oct 27 - 1998 Oct 27 ] Uncertain Eruption

Episode 1 | Eruption Episode Funka-Asane
1998 Oct 27 - 1998 Oct 27 Evidence from Unknown

List of 1 Events for Episode 1 at Funka-Asane

Start Date End Date Event Type Event Remarks
1998 Oct 27    - - - - VEI (Explosivity Index)

[ 1998 May 21 - 1998 May 21 ] Uncertain Eruption

Episode 1 | Eruption Episode Funka-Asane
1998 May 21 - 1998 May 21 Evidence from Unknown

List of 1 Events for Episode 1 at Funka-Asane

Start Date End Date Event Type Event Remarks
1998 May 21    - - - - VEI (Explosivity Index)

[ 1997 Mar 10 - 1997 Mar 10 ] Uncertain Eruption

Episode 1 | Eruption Episode Funka-Asane
1997 Mar 10 - 1997 Mar 10 Evidence from Unknown

List of 1 Events for Episode 1 at Funka-Asane

Start Date End Date Event Type Event Remarks
1997 Mar 10    - - - - VEI (Explosivity Index)

[ 1989 Jul 16 ± 15 days - 1989 Jul 16 ± 15 days ] Uncertain Eruption

Episode 1 | Eruption Episode Funka-Asane
1989 Jul 16 ± 15 days - 1989 Jul 16 ± 15 days Evidence from Unknown

List of 1 Events for Episode 1 at Funka-Asane

Start Date End Date Event Type Event Remarks
1989 Jul    - - - - VEI (Explosivity Index)

[ 1987 Aug 16 ± 15 days - 1987 Aug 16 ± 15 days ] Uncertain Eruption

Episode 1 | Eruption Episode Funka-Asane
1987 Aug 16 ± 15 days - 1987 Aug 16 ± 15 days Evidence from Unknown

List of 1 Events for Episode 1 at Funka-Asane

Start Date End Date Event Type Event Remarks
1987 Aug    - - - - VEI (Explosivity Index)

[ 1983 Jul 16 ± 15 days - 1983 Jul 16 ± 15 days ] Uncertain Eruption

Episode 1 | Eruption Episode Funka-Asane
1983 Jul 16 ± 15 days - 1983 Jul 16 ± 15 days Evidence from Unknown

List of 1 Events for Episode 1 at Funka-Asane

Start Date End Date Event Type Event Remarks
1983 Jul    - - - - VEI (Explosivity Index)

[ 1982 Jun 16 ± 15 days - 1982 Jun 16 ± 15 days ] Uncertain Eruption

Episode 1 | Eruption Episode Funka-Asane
1982 Jun 16 ± 15 days - 1982 Jun 16 ± 15 days Evidence from Unknown

List of 1 Events for Episode 1 at Funka-Asane

Start Date End Date Event Type Event Remarks
1982 Jun    - - - - VEI (Explosivity Index)

[ 1968 Aug 16 ± 15 days - 1968 Aug 16 ± 15 days ] Uncertain Eruption

Episode 1 | Eruption Episode Funka-Asane
1968 Aug 16 ± 15 days - 1968 Aug 16 ± 15 days Evidence from Unknown

List of 1 Events for Episode 1 at Funka-Asane

Start Date End Date Event Type Event Remarks
1968 Aug    - - - - VEI (Explosivity Index)

[ 1953 May 16 ± 15 days - 1953 May 16 ± 15 days ] Uncertain Eruption

Episode 1 | Eruption Episode Funka-Asane
1953 May 16 ± 15 days - 1953 May 16 ± 15 days Evidence from Unknown

List of 1 Events for Episode 1 at Funka-Asane

Start Date End Date Event Type Event Remarks
1953 May    - - - - VEI (Explosivity Index)

1930 - 1945 Confirmed Eruption Max VEI: 2 (?)

Episode 1 | Eruption Episode Funka-Asane
1930 - 1945 Evidence from Observations: Reported

List of 3 Events for Episode 1 at Funka-Asane

Start Date End Date Event Type Event Remarks
   - - - -    - - - - Explosion
   - - - -    - - - - Pumice
1930    - - - - VEI (Explosivity Index)

1880 - 1889 Confirmed Eruption Max VEI: 0

Episode 1 | Eruption Episode Funka-Asane
1880 - 1889 Evidence from Observations: Reported

List of 3 Events for Episode 1 at Funka-Asane

Start Date End Date Event Type Event Remarks
   - - - -    - - - - Ash
   - - - -    - - - - Earthquakes (undefined)
1880    - - - - VEI (Explosivity Index)

1780 Confirmed Eruption Max VEI: 0

Episode 1 | Eruption Episode Funka-Asane
1780 - Unknown Evidence from Observations: Reported
 Submarine eruption (JMA, 1975; Sawada, 1984).

List of 1 Events for Episode 1 at Funka-Asane

Start Date End Date Event Type Event Remarks
1780    - - - - VEI (Explosivity Index) VEI 0
Deformation History

There is no Deformation History data available for Kita-Ioto.

Emission History

There is no Emissions History data available for Kita-Ioto.

GVP Map Holdings

Maps are not currently available due to technical issues.

The maps shown below have been scanned from the GVP map archives and include the volcano on this page. Clicking on the small images will load the full 300 dpi map. Very small-scale maps (such as world maps) are not included.

Smithsonian Sample Collections Database

There are no samples for Kita-Ioto in the Smithsonian's NMNH Department of Mineral Sciences Rock and Ore collection.

External Sites