All times are local unless otherwise stated.

Awu (Indonesia) | 9 June-15 June 2004 | New Eruptive Activity Cite this Report
Awu Sangihe Volcanic Arc	On 13 June, DVGHM reduced the Alert Level at Awu from 4 (the highest level) to 3 after volcanic activity decreased. On 9 June, two moderate explosions rose about 2 and 3 km above the volcano. Ash drifted SW and was deposited in the villages of Tabukan utara and part of Kendahe, and at the Taha airport. After an eruption on 10 June at 0529, volcanic activity dramatically decreased with only "white smoke" rising ~50 m. This low-level activity continued through at least 14 June and the Taha airport planned to reopen. According to a news report, most of the ~20,000 people who were evacuated from near the volcano around 8 June were permitted to return home. Only some villagers from the N slope of the volcano remained in shelters. Sources: Pusat Vulkanologi dan Mitigasi Bencana Geologi (PVMBG, also known as CVGHM), Agence France-Presse (AFP), Darwin Volcanic Ash Advisory Centre (VAAC)
Tengger Caldera (Indonesia) | 9 June-15 June 2004 | New Eruptive Activity Cite this Report
Tengger Caldera Sunda Volcanic Arc	According to DVGHM, a phreatic eruption at the Bromo cone of Tengger caldera on 8 June at 1526 produced an ash cloud that rose 3 km above the volcano. The eruption lasted ~20 minutes. Ash drifted WNW and rocks and ash were deposited in a ~300 m radius around the volcano's crater. Two tourists were killed and five people were injured. At this time the volcano was at Alert Level 3. After the explosion, only steam and gas were emitted until an explosion on 14 June at 0819 sent ash ~100 m above the volcano. Around 15 June activity generally decreased and the Alert Level was reduced to 2. The public was prohibited from entering within a 1-km-radius around the crater. Sources: Pusat Vulkanologi dan Mitigasi Bencana Geologi (PVMBG, also known as CVGHM), Agence France-Presse (AFP), Darwin Volcanic Ash Advisory Centre (VAAC)
Anatahan (United States) | 9 June-15 June 2004 | Continuing Eruptive Activity Cite this Report
Anatahan Mariana Volcanic Arc	Low-level volcanic and seismic activity continued at Anatahan during 9-15 June. During a visit to the volcano on 10 June, Strombolian explosions at an active spatter cone threw volcanic material as high as ~100 m every 10-60 seconds. Around 15 June, the amplitude and number of discrete seismic events appeared to slightly decrease. Source: Emergency Management Office of the Commonwealth of the Mariana Islands and United States Geological Survey Volcano Hazards Program
Dukono (Indonesia) | 9 June-15 June 2004 | Continuing Eruptive Activity Cite this Report
Dukono Halmahera Volcanic Arc	During 9-15 June, Dukono occasionally emitted low-level plumes that were visible on satellite imagery. Source: Darwin Volcanic Ash Advisory Centre (VAAC)
Karymsky (Russia) | 9 June-15 June 2004 | Continuing Eruptive Activity Cite this Report
Karymsky Eastern Kamchatka Volcanic Arc	Seismic activity was above background levels at Karymsky during 4-11 June, with 300-480 shallow earthquakes occurring daily. Based on interpretations of seismic data, daily ash-and-gas explosions produced plumes that rose 3-6.5 km a.s.l. Karymsky remained at Concern Color Code Orange. Source: Kamchatkan Volcanic Eruption Response Team (KVERT)
Kīlauea (United States) | 9 June-15 June 2004 | Continuing Eruptive Activity Cite this Report
Kīlauea Hawaiian-Emperor Hotspot Volcano Group	On 13 June, two collapses occurred at Kīlauea's western lava delta, sending sizable chunks of the delta into the sea. On 14 June, most lava was being supplied to the ocean through lava tubes, but several surface lava flows were visible on the delta and traveling down the old sea cliff behind the Wilipeʻa delta. The larger eastern lava delta had several active lava entries into the ocean, mostly larger than those on the western delta. All vents were active in the crater of Puʻu ʻŌʻō. A few small earthquakes were recorded beneath the summit of Kīlauea and no tremor was detected. Tremor at Puʻu ʻŌʻō was at a moderate-to-high level. Source: US Geological Survey Hawaiian Volcano Observatory (HVO)
Nyiragongo (DR Congo) | 9 June-15 June 2004 | Continuing Eruptive Activity Cite this Report
Nyiragongo Albertine Rift Volcanic Province	During 9-15 June, ash from Nyiragongo was sometimes visible on satellite imagery below ~5.5 km a.s.l. drifting WSW. Source: Toulouse Volcanic Ash Advisory Centre (VAAC)
Sheveluch (Russia) | 9 June-15 June 2004 | Continuing Eruptive Activity Cite this Report
Sheveluch Eastern Kamchatka Volcanic Arc	Seismic activity remained above background levels at Shiveluch during 4-11 June, with several shallow earthquakes occurring beneath the active lava dome. According to visual and video observations from the town of Klyuchi, during 3-5 and 10 June, gas-and-steam plumes rose to 3.3-3.9 km a.s.l. and extended more than 10 km SE, E, W, and NW. Shiveluch remained at Concern Color Code Orange. Source: Kamchatkan Volcanic Eruption Response Team (KVERT)
Soufrière Hills (United Kingdom) | 9 June-15 June 2004 | Continuing Eruptive Activity Cite this Report
Soufrière Hills Lesser Antilles Volcanic Arc	Activity at Soufrière Hills remained at low levels during 4-11 June. The seismic network recorded three hybrid earthquakes and nine "mixed events," which were thought to have originated at shallow depths within the remnants of the lava dome and around the top of the conduit. The sulfur-dioxide flux peaked at ~790 tons on 7 June and decreased sharply to ~170 tons per day by the end of the report period. Source: Montserrat Volcano Observatory (MVO)
Suwanosejima (Japan) | 9 June-15 June 2004 | Continuing Eruptive Activity Cite this Report
Suwanosejima Ryukyu Volcanic Arc	An eruption at Suwanose-jima on 9 June at 1003 produced an ash plume visible on satellite imagery at a height of ~1.8 km a.s.l., extending E. Another explosion at 1300 that day produced an ash plume that reached an unknown height. Source: Tokyo Volcanic Ash Advisory Center (VAAC)
Tungurahua (Ecuador) | 9 June-15 June 2004 | Continuing Eruptive Activity Cite this Report
Tungurahua Northern Andean Volcanic Arc	Several explosions occurred at Tungurahua on 10 June, with the largest rising ~3 km above the volcano and drifting W. A small amount of ash fell in the Pillate area and a lahar destroyed a bridge in the Bibao zone. Sources: Washington Volcanic Ash Advisory Center (VAAC), Instituto Geofísico-Escuela Politécnica Nacional (IG-EPN)
Veniaminof (United States) | 9 June-15 June 2004 | Continuing Eruptive Activity Cite this Report
Veniaminof Aleutian Ridge Volcanic Arc	Bursts of volcanic tremor continued at Veniaminof during 4-11 June. The only significant ash emissions occurred during the evening of 30-31 May. No emission exceeded 3 km a.s.l. Veniaminof remained at Concern Color Code Yellow. Source: US Geological Survey Alaska Volcano Observatory (AVO)

Since the Weekly Volcanic Activity Report began in November 2000, there have been 22,882 individual reports over 1,336 weeks (average of 17 per week) on 351 different volcanoes.

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The RSS (Really Simple Syndication) feed is identical to the Weekly Volcanic Activity Report minus some features including the header information (latitude and longitude and summit elevation), the Geological Summary, and a link to the GVP volcano profile page. At the end of each report is a list of the sources used. Each report includes a link from the volcano's name back to the more complete information on the GVP website.

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Criteria

The Weekly Volcanic Activity Report does not necessarily include all volcanic activity that occurred on Earth during the week. More than a dozen volcanoes globally have displayed essentially continuous eruptive activity for decades or longer, and such routine activity is typically not reported here. Submarine activity is reported when information is available. The Weekly Volcanic Activity Report summarizes volcanic activity that meets one or more of the following criteria:

- A volcano observatory raises or lowers the alert level at the volcano.
- A volcanic ash advisory has been released by a volcanic ash advisory center (VAAC) stating that an ash cloud has been produced from the volcano.
- A verifiable news report of new activity or a change in activity at the volcano has been issued.
- Observers have reported a significant change in volcanic activity. Such activity can include, but is not restricted to, pyroclastic flows, lahars, lava flows, dome collapse, or increased unrest.

Reports categorized as "Activity (New)" indicate eruptive activity that has occurred after at least 3 months of quiescence. Once a volcano is included in this section, updates will remain on that list unless the activity continues for more than 1 month without escalating, after which time updates will be listed in the "Activity (Continuing)" section. Reports are included in the "Unrest" sections (New or Continuing) if the volcano is undergoing non-eruptive activity such as seismicity or deformation that is unusually high for that volcano or is increasing. The "Other" category includes non-eruptive and non-unrest reports, such as Alert Level decreases or previous ash deposits resuspended by winds. Reports through 2025 were only divided into "New Activity/Unrest" and "Continuing Activity", which have been automatically converted to the "Activity (New)" and "Activity (Continuing)" groups, respectively, without a review of content that might change the category to "Unrest" or "Other".

It is important to note that volcanic activity meeting one or more of these criteria may occur during the week, but may not be included in the Weekly Volcanic Activity Report because we did not have the relevant information at the time.

Disclaimers

1. The Weekly Volcanic Activity Report is intended to provide timely information about global volcanism on a weekly basis. Consequently, the report is generated rapidly by summarizing volcanic reports from various sources, with little time for fact checking. The accuracy of the Weekly Volcanic Activity Report is dependent upon the quality of the volcanic activity reports we receive. Reports published in the Bulletin of the Global Volcanism Network are cover longer time periods and are more carefully reviewed, although all of the volcanoes discussed in the Weekly Volcanic Activity Report are not necessarily reported in the Bulletin. Reports are updated on the Weekly Volcanic Activity Report web page as they are received, therefore information may be included regarding events that occurred before the current report period.

2. Rapidly developing events lead to coverage that is often fragmentary. Volcanoes, their eruptions, and their plumes and associated atmospheric effects are complex phenomena that may require months to years of data analysis in order to create a comprehensive summary and interpretation of events.

3. Preliminary accounts sometimes contain exaggerations and "false alarms," and accordingly, this report may include some events ultimately found to be erroneous or misleading.

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