Powerful quake shakes Sumbawa, Indonesia
Posted by feww on November 8, 2009
M7.0 Earthquake Strikes Sumbawa, Indonesia
Powerful earthquake measuring up to 7.0Mw struck Indonesia’s Sumbawa region, about 77 km east of Tambora volcano and at an estimated depth of 18 km, November 8, 2009 at 19:41 UTC.
Mount Tambora’s 1815 eruption (Volcanic Explosivity Index of 7) was the largest in modern history, and perhaps the deadliest of all time, with up to an estimated 100,000 people losing their lives as a result.
Alarmed by its findings concerning the prospect of intense seismic activity in the region, FEWW featured Mt Tambora in its weekly volcano watch VolcanoWatch Weekly dated 23 July 2009.
See also September 28, 2009 entry: Up to 3 More Large EQs Could Strike the Pacific Ring of Fire in 2009
FEWW Moderators believe that further, intense seismic activity would most likely occur in the region in the near future.
10-degree Map Centered at 10°S,120°E
Earthquake location Map. Source: USGS/EHP. Enhanced by FEWW
Earthquake Details:
- Magnitude: 6.7 [Maximum quake magnitude estimated by FEWW at 7.0 Mw]
- Date-Time:
- Sunday, November 08, 2009 at 19:41:44 UTC
- Monday, November 09, 2009 at 03:41:44 AM at epicenter
- Location: 8.316°S, 118.697°E
- Depth: 18.3 km (11.4 miles) (poorly constrained)
- Region: SUMBAWA REGION, INDONESIA
- Distances:
- 15 km (10 miles) NNW of Raba, Sumbawa, Indonesia
- 310 km (190 miles) ENE of Mataram, Lombok, Indonesia
- 330 km (205 miles) W of Ende, Flores, Indonesia
- 1335 km (830 miles) E of JAKARTA, Java, Indonesia
- Location Uncertainty: horizontal +/- 9.3 km (5.8 miles); depth +/- 33 km (20.5 miles)
- Source: USGS NEIC (WDCS-D)
- Event ID: us2009nta5
Tsunami Info:
NOAA Pacific Tsunami Warning Center Center issued the following evaluation:
A destructive widespread tsunami threat does NOT exist based on historical earthquake and tsunami data. However – there is a very small possibility of a local tsunami that could affect coasts located usually no more than a hundred kilometers from the earthquake epicenter. Authorities in the region near the epicenter should be made aware of this possibility.
Historic Seismicity
Major Tectonic Boundaries: Subduction Zones -purple, Ridges -red and Transform Faults -green- USGS/EHP
Seismic Hazard Map
Major Tectonic Boundaries: Subduction Zones -purple, Ridges -red and Transform Faults -green- USGS/EHP
Related Links:
- Volcanoes
- Earthquakes [Main Index Page]
Other Related Links [Including FEWW forecasts]
- Powerful Earthquake Strikes Celebes Sea, S of Philippines
- Earth undergoing significant geophysical disturbances
- Earthquakes: Human Enhanced Disasters – UPDATE 3 Oct 2009
- Earthquakes: Human Enhanced Disasters – UPDATE 2 Oct 2009
- Disaster Update: Indonesia Quake
Fire Earth 
terres said
Dozens hurt in Indonesia earthquake
http://edition.cnn.com/2009/WORLD/asiapcf/11/09/indonesia.earthquake/
(CNN) — One person was killed and at least 88 injured when a strong earthquake hit the Sumbawa region in Indonesia early Monday, officials said.
The 6.7-magnitude quake struck near the island at 3:41 a.m. local time.
It damaged about 280 homes and four hospitals, said Rustam Pakaya, a disaster management official.
Indonesia is on the so-called Ring of Fire, an arc of fault lines circling the Pacific Basin that is prone to frequent earthquakes and volcanic eruptions.
In September, a 7.5-magnitude temblor struck southern Sumatra, killing at least 1,100 people.
Five years ago, a 9.1-magnitude earthquake struck off the coast of the northern tip of Indonesia’s Sumatra island, triggering an Indian Ocean tsunami that killed more than 200,000 people in 11 countries.