Acehtsunami

A great earthquake with a moment magnitude of 8.0 (USGS magnitude) occurred at 2040 UTC 1 April 2007 (day 091) and was located near the Solomon Islands (8.453�S, 156.937�E, 10.0km depth - USGS location).

The earthquake produced a tsunami that was recorded at tide gages monitored at the Tsunami Warning Centers. Many observatories provide data to the centers; such as the NOAA National Ocean Service, the Japanese Meteorological Agency, the U. of Hawaii Sea Level Center, the Chilean Navy, and the National Tidal Facility in Australia among others. Click on the site name to see a graph of the tsunami, when available. Listed wave heights are maximum amplitude in cm (above sea level). Observed Arrival time is the actual tsunami arrival time in UTC on gages where it could be determined. The Computed Arrival time is the estimated time of arrival computed at the West Coast/Alaska Tsunami Warning Center (WC/ATWC) based on the origin time and location. The Sample Interval column shows the time between samples.

The following is a revised REPEAT revised release by the United States Geological Survey, National Earthquake Information Center: An earthquake occurred about 40 km (25 miles) ENE of Iquique at 10:01 AM MST, Feb 4, 2008 (2:01 PM local time in Chile). The magnitude and location may be revised when additional data and further analysis results are available. There have been no reports of damage.

Chile’s shape was determined by the fact that it began as a Spanish settlement on the western side of the mighty cordillera of the Andes, in the central part of the country. This range, which includes the two tallest peaks in the Americas–Aconcagua (6,959 meters) and Nevado Ojos del Salado (6,880 meters)–is a formidable barrier, whose passes to the Argentine side are covered by a heavy blanket of snow during the winter months. As a result, Chile could expand beyond its original colonial territory only to the south and north. The colony grew southward by occupying lands populated by indigenous groups, and it grew northward by occupying sections of both Peru and Bolivia that were eventually awarded to Chile in the aftermath of the War of the Pacific.

A major earthquake with a magnitude of 7.2 occurred at 0040 UTC 25 March 2007 and was located near the Vanuatu Islands (20.666�S, 169.426�E, 35km depth - USGS location).

The earthquake produced a tsunami that was recorded at Port Vila, Vanuatu and at Honiara, in the Solomon Islands (both stations operated by the National Tidal Facility of the Flinders University of South Australia). Wave heights are maximum peak-to-trough height in cm. Arrival time is the actual tsunami arrival time in UTC on gages where it could be determined. The ETA is the estimated time of arrival computed at the West Coast/Alaska Tsunami Warning Center (WC/ATWC) based on the origin time and location. The Sample Interval column shows the time between samples. Click on the Data File column to get the raw data as recorded at the WC/ATWC.

Five people killed and 200 injured, 99 buildings collapsed and 815 seriously damaged at Bukavu. Power outages occurred in about 50 percent of city. Twenty six people killed and 217 injured at Cyangugu and seven people killed and 300 injured in the Nyamasheke area, Rwanda. Felt (IV) at Butare and Kigali. Also felt at Bujumbura and Kirundo, Burundi; Kabanga and Rulenge, Tanzania and Kabale, Uganda.

The earthquake occurred in the Western Rift of the East African rift system. The East African rift system is a diffuse, approximately 3000-km-long, zone of crustal extension that passes through eastern Africa from Djibouti and Eritrea on the north to Malawi on the south and that constitutes the boundary between the Africa plate on the west and the Somalia plate on the east. At the earthquake’s latitude, the Africa and Somalia plates are spreading apart at a rate of about four millimeters per year. The earthquake occurred near Lake Kivu, the basin of which was created by normal faulting similar to that which produced the February 3 earthquake. The largest earthquake to have occurred in the rift system since 1900 had a magnitude of about 7.6. The epicenter of the February 3, 2008, earthquake is within several tens of kilometers of the epicenter of a magnitude 6.2 earthquake that killed two people in Goma in October 2002. Earthquakes within the East African rift system occur as the result of both normal faulting and strike-slip faulting.

A major earthquake with an initial magnitude of 7.1 ocurred at 0042 UTC 25 March 2007, off the west coast of Honshu, Japan (37.281�N, 136.602�E, 50Km depth - USGS location).

The earthquake produced a small tsunami that was recorded at several tide gages operated by the Japanese Meteorological Agency. The magnitude of the earthquake was subsequently resized to M 6.7. Wave heights are maximum peak-to-trough height in cm. Arrival time is the actual tsunami arrival time in UTC on gages where it could be determined. The ETA is the estimated time of arrival computed at the West Coast/Alaska Tsunami Warning Center (WC/ATWC) based on the origin time and location. The Sample Interval column shows the time between samples.

The following is a release by the United States Geological Survey, National Earthquake Information Center: An earthquake occurred 200 km (125 miles) WSW of Bella Bella, British Columbia, Canada, 240 km (150 miles) WNW of Port Hardy, British Columbia, Canada, 585 km (365 miles) WNW of Vancouver, British Columbia, Canada, 620 km (385 miles) NW of VICTORIA, British Columbia, Canada at 4:01 AM MST, Jan 5, 2008 (3:01 AM PST in Canada). The magnitude and location may be revised when additional data and further analysis results are available. There have been no reports of damage. Additional information about this earthquake can be obtained from the Geological Survey of Canada in Sidney, British Columbia (604-363-6500).

A great earthquake with a moment magnitude of 8.1 (USGS magnitude) occurred at 0424 UTC 13 January 2007 (day 013) and was located near the Kuril Islands (46.272�N, 154.455�E, 10.0km depth - USGS location).

The earthquake produced a tsunami that was recorded at tide gages monitored at the Tsunami Warning Centers. Many observatories provide data to the centers; such as the NOAA National Ocean Service, the Japanese Meteorological Agency, the U. of Hawaii Sea Level Center, the Chilean Navy, and the National Tidal Facility in Australia among others. Click on the site name to see a graph of the tsunami, when available. Listed wave heights are maximum amplitude in cm (above sea level). Observed Arrival time is the actual tsunami arrival time in UTC on gages where it could be determined. The Computed Arrival time is the estimated time of arrival computed at the West Coast/Alaska Tsunami Warning Center (WC/ATWC) based on the origin time and location. The Sample Interval column shows the time between samples.