TSUNAMI: THIS IS AS CLOSE AS YOU’LL EVER WANT TO GET March 02, 2010
FACTS ABOUT THE QUAKE THAT SPAWNED THE TSUNAMI
Origin Time - The great earthquake struck on Wednesday, September 12, 2007 at 1110 Z (UTC), about 21:10 (AEST), (1810 local time in the Bengkulu province of Indonesia). Another major earthquake (7.1 magnitude) struck four hours later. A third earthquake with a 7.8 magnitude struck at 1145 GMT 6:45 a.m. (7:45 p.m. Wednesday ET).
Epicenter - The epicenter of the great earthquake was off the coast of Southern Sumatra at 4.517 S. 101.382 E., about 185 km south-southeast of Padang, about 130 km (80 miles) SW of Bengkulu, 410 km (255 miles) SW of Jambi, 620 km (385 miles WNW of Jakarta and 695 km (435 miles) SSW of Singapore (USGS).
Magnitude - The great earthquake's estimated Moment Magnitude was initially given as Mw= 8.2. Later , it was raised to Mw=8.4
Focal Depth - The focal depth was shallow at 30 Km (about 18.6 miles)
Aftershocks - At least 10 aftershocks of magnitude 5.1 to 6.0 were felt in the region after the larger quake. At least 60 major aftershocks measuring 5.0 and occurred within the 24-hour period following the main earthquake.
Felt Motions - The earthquakes shook buildings in the Indonesian capital, Jakarta, about 605 km (375 miles) southeast of the epicenter, forcing evacuation of several tall buildings. Shaking at some locations in Singapore (about 435 miles from the epicenter) were so strong that several high-rise buildings were also evacuated. According to eyewitnesses in Singapore, the shaking lasted almost a minute.
Deaths and Damages - Several buildings in Padang, the capital of West Sumatra, collapsed and some caught fire. At least nine people were killed in the Bengkulu province and in Padang. An unknown number of people were injured or were missing. The death toll is expected to rise. Thousands of homes were damaged in Sumatra.