Activity for the week of 8 November-14 November 2000
The Weekly Volcanic Activity Report is a cooperative project between the Smithsonian's Global Volcanism Program and the US Geological Survey's Volcano Hazards Program. Updated by 2300 UTC every Wednesday, notices of volcanic activity posted on these pages are preliminary and subject to change as events are studied in more detail. This is not a comprehensive list of all of Earth's volcanoes erupting during the week, but rather a summary of activity at volcanoes that meet criteria discussed in detail in the "Criteria and Disclaimers" section. Carefully reviewed, detailed reports on various volcanoes are published monthly in the Bulletin of the Global Volcanism Network.
| Central Kamchatka (Russia)
| 55.972°N, 160.595°E
| Elevation 2882 m
The increase in seismicity that began on 30 October reportedly ended when seismicity decreased to background levels sometime during 3-10 November. Only gas-and-steam plumes were observed rising to a maximum height of 2 km above the volcano. KVERT lowered the Level of Concern Color Code from Yellow to Green.
Source: Kamchatkan Volcanic Eruption Response Team (KVERT)
| 19.514°N, 103.62°W
| Elevation 3850 m
The Volcanological Observatory of Colima University reported that small exhalations occurred at Colima at 1250 on 8 November, 1327 on 9 November, and at 1728 on 10 November. The Mexico City MWO reported that the 10 November exhalation produced an ash cloud that rose to 6 km a.s.l. and was blown to the ENE. The Washington VAAC reported that the ash cloud was not visible in GOES-8 imagery. According to the observatory, the events did not exceed the established safety limits so the zone of exclusion remained at 6.5 km around the volcano.
Sources: Centro Universitario de Estudios e Investigaciones de Vulcanologia - Universidad de Colima, Washington Volcanic Ash Advisory Center (VAAC)
| Sicily (Italy)
| 37.748°N, 14.999°E
| Elevation 3295 m
According to the Italy's Volcanoes website, during the week mild Strombolian activity continued at the Bocca Nuova Crater. The overall level of activity appeared to be generally lower than the previous week.
Sources: Sezione di Catania - Osservatorio Etneo (INGV), Italy's Volcanoes, Stromboli On-Line
| 0.171°S, 78.598°W
| Elevation 4784 m
Volcanic activity at Guagua Pichincha was low during the week and seismicity was relatively stable. No dramatic changes in the morphology of the lava dome were observed.
Source: Instituto Geofísico-Escuela Politécnica Nacional (IG)
| Hokkaido (Japan)
| 42.063°N, 140.677°E
| Elevation 1131 m
According to an Associated Press article, the JMA stated that at 0739 on 8 November an eruption occurred at Komaga-take, which is 710 km NE of Tokyo on Japan's northernmost island of Hokkaido. The eruption produced an ash cloud and coincided with 10 minutes of volcanic tremor. Ashfall was reported in the nearby town of Shikabe, but due to cloudy conditions the height of the ash plume was not observed. The volcano had previously erupted on 4 and 28 September, and 28 October 2000.
Sources: Associated Press, ABC News - Australian Broadcasting Corporation
| Siau Island (Indonesia)
| 2.781°N, 125.407°E
| Elevation 1797 m
The VSI reported that volcanic activity continued at Karangetang. At 2030 on 2 November a small explosion produced an ash cloud that reached a height of 1.5 km above the volcano. The ejected material fell around the summit and flowed 1.5 km down the E, S, and W flanks of the volcano. A "red flame" was observed some nights rising ~ 75 m above the volcano's summit.
Source: Pusat Vulkanologi dan Mitigasi Bencana Geologi (PVMBG, also known as CVGHM)
| Hawaiian Islands (USA)
| 19.421°N, 155.287°W
| Elevation 1222 m
Lava continued to flow across the coastal flat and into the sea at the Kamokuna entry. Overall, volcanic tremor near Pu`u `O`o vent remained at a moderate level and earthquake activity was low across the island. The tilt-meters at Kilauea's summit and along the east rift zone showed flat signals.
Source: US Geological Survey Hawaiian Volcano Observatory (HVO)
Piton de la Fournaise
| Reunion Island (France)
| 21.244°S, 55.708°E
| Elevation 2632 m
According to OVPDLF, the eruption that began on 12 October at Piton de la Fournaise continued through 13 November. A new cone named "Piton Morgabim" developed in the beginning of November and on 8 November a 10- to 15-km-diameter lava lake formed, which had intense degassing and heavy lava fountaining. During the course of the eruption, 4.5-km-long lava flows formed E of the volcano in the "Grand Brûlé" area, and ~2-km-long lava flows issued from "Piton Morgabim."
Source: Observatoire Volcanologique du Piton de la Fournaise (OVPF)
| 19.023°N, 98.622°W
| Elevation 5393 m
During the week volcanic activity was high at Popocatepetl, with several exhalations and eruptions. CENAPRED reported that exhalations at 1456 and 1541 on 7 November sent ash clouds to 2 and 4.5 km above the volcano, respectively. The Mexico City MWO reported to the Washington VAAC that an ash-and-steam exhalation at 1150 on 9 November sent ash to ~9.5 km a.s.l. According to a Reuters article, CENAPRED stated that light ashfall occurred in Santiago Xalitzintla, the closest village to the crater. The Washington VAAC reported that on 11 November eruptions at 0739, 0818, 0845, and 1418 sent ash to a maximum altitude of ~9.5 km a.s.l. The volcano's Alert Level remained at Yellow Phase III.
Sources: Associated Press, Centro Nacional de Prevencion de Desastres (CENAPRED), Reuters, Washington Volcanic Ash Advisory Center (VAAC)
| 16.72°N, 62.18°W
| Elevation 915 m
The MVO reported that during 3-10 November, volcanism continued at an elevated level and seismicity was slightly higher than the previous week. Dome growth continued and rockfalls occurred on the E side of the crater. Heavy rainfall on 4 and 8 November produced mudflows that traveled to the NW down the Belham River. During the 8 November rainfall, continuous rockfalls and low-energy pyroclastic flows traveled to the E down the Tar River valley. The pyroclastic flows generated ash clouds that rose to ~2 km a.s.l. and were blown to the N. On 13 November the Washington VAAC reported that a low-level (~1.5 km a.s.l.) ash plume that was blown to the N was visible in GOES-8 imagery.
Source: Montserrat Volcano Observatory (MVO)
| 1.467°S, 78.442°W
| Elevation 5023 m
The IG reported that seismicity and explosive activity were at low levels during the week. The Washington VAAC reported that on 13 November a small ash cloud, which was near summit level and blown to the SE, was visible in GOES-8 imagery.
Sources: Instituto Geofísico-Escuela Politécnica Nacional (IG), Washington Volcanic Ash Advisory Center (VAAC)
News Feeds and Google Placemarks
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 Geologic Summary, and a link to the volcano's page from the Global Volcanism Program. Each volcano report includes a link from the volcano's name back to the more complete information in the Weekly Volcanic Activity Report on the Smithsonian website.
The CAP (Common Alerting Protocol) feeds are XML files specifically formatted for disaster management. They are similar in content to the RSS feed, but contain no active links.
A Google Earth network link for the Weekly Volcanic Activity Report can be loaded into the free Google Earth software, and in turn will load placemarks for volcanoes in the current weekly report. Placemark balloons include the volcano name, report date, report text, sources, and links back to the GVP volcano page for that volcano and to the complete Weekly Report for that week.
Criteria & Disclaimers
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 more-or-less continuous eruptive activity for decades or longer, and such routine activity is typically not reported here. Moreover, Earth's sea-floor volcanism is seldom reported even though in theory it represents the single most prolific source of erupted material. 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.
Volcanoes are included in the "New Activity/Unrest" section of the Weekly Volcanic Activity Report if the activity occurs after at least 3 months of quiescence. Once a volcano is included in the "New Activity/Unrest" section, updates will remain in that section unless the activity continues for more than 1 month without escalating, after which time updates will be listed in the "Continuing Activity" section. Volcanoes are also included in the "New Activity/Unrest" section if the volcano is undergoing a period of relatively high unrest, or increasing unrest. This is commonly equal to Alert Level Orange on a scale of Green, Yellow, Orange, Red, where Red is the highest alert. Or alert level 3 on a scale of 1-4 or 1-5.
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 receive a report.
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 monthly, and more carefully reviewed, although all of the volcanoes discussed in the Weekly Volcanic Activity Report are not necessarily reported in the Bulletin. Because of our emphasis on rapid reporting on the web we have avoided diacritical marks. 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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RSS and CAP Feeds
An RSS (Really Simple Syndication) feed for the Weekly Volcanic Activity Report first made available on 5 March 2008 can be utilized with the aid of various free downloadable readers. The report content of the news feed is identical to the Weekly Volcanic Activity Report minus some features including the header information (latitude and longitude and summit elevation), the Geologic Summary, and a link to the volcano's page from the Global Volcanism Program. Each volcano report includes a link from the volcano's name back to the more complete information in the Weekly Volcanic Activity Report on the Smithsonian website. On 12 March 2009, GeoRSS tags were added so that the latitude and longitude for each volcano could be included with the feed.
At the end of each individual report is a list of the sources used. We would like to emphasize that the World Organization of Volcano Observatories (WOVO) website (http://www.wovo.org/) lists the regional volcano observatories that have the most authoritative data for many of these events.
CAP (Common Alerting Protocol) feeds are XML files specifically formatted for disaster management.
Google Earth Placemarks
A Google Earth network link for the Weekly Volcanic Activity Report was first made available on 1 April 2009. This file can be loaded into the free Google Earth software, and in turn will load placemarks for volcanoes in the current weekly report. Placemark balloons include the volcano name, report date, report text, sources, and links back to the GVP volcano page for that volcano and to the complete Weekly Report for that week.