Earthquake DetailsMagnitude 7.9 (Preliminary magnitude — update expected within 15 minutes)
Date-Time Wednesday, September 30, 2009 at 10:16:11 UTC
Wednesday, September 30, 2009 at 05:16:11 PM at epicenter
Location 0.800°S, 99.900°E
Depth 87 km (54.1 miles) set by location program
Region SOUTHERN SUMATRA, INDONESIA
Distances 53 km (33 miles) WNW (288°) from
Padang, Sumatra, Indonesia
227 km (141 miles) SW (229°) from Pekanbaru, Sumatra, Indonesia
304 km (189 miles) SSE (156°) from Sibolga, Sumatra, Indonesia
481 km (299 miles) SSW (205°) from KUALA LUMPUR, Malaysia
Location Uncertainty Error estimate not available
Parameters NST= 18, Nph= 18, Dmin=511.9 km, Rmss=1.42 sec, Gp=101°,
M-type="moment" magnitude from initial P wave (tsuboi method) (Mi/Mwp), Version=1
Source West Coast and Alaska Tsunami Warning Center/NOAA/NWS
Event ID at00430577