DATED 2 MARCH 2016 EARTHQUAKE WITH 7.8 STRENGTH IN THE WEST-ISLAND-SUMBAR MENTAWAI POTENTIALLY TSUNAMI IN SOME AREAS IN INDONESIA

Indonesian Agency for Meteorological, Climatological and Geophysics
Badan Meteorologi, Klimatologi, dan Geofisika
http://bit.ly/1TSzbdq

(Google Translate used to obtain English text)

Great Earthquake Mw 7.8 magnitude, struck off the western coast of the Mentawai Islands (Southwestern Mentawai Islands in West Sumatra), dated March 2, 2016, at 19:49:41 pm, Location 4.92 ° S and 94.39 ° E with a depth of 10 km, a potential tsunami in parts of Indonesia. Based on the analysis of the earthquake source of Meteorology and Geophysics (BMKG), the earthquake source has a mechanism in the form of shear fracture (Figure 1). However, based on modeling of tsunamis, earthquakes can potentially cause a tsunami threat is small (not significant) in the region around the epicenter is in Nias, the Pagai Islands, Tanah Bala, Simeulue, Bengkulu, South Coast, Nias eastern part, and surrounding areas.

The results of the observational record of sea surface in Padang and Cocos Island-Australia recorded sea level rise each 5 cm and 10 cm. Therefore it can be concluded that the earthquake did not pose a significant tsunami and the National Weather Service has ended the tsunami early warning at 22:32 hours: 42 pm for the entire territory of Indonesia.

Map of the center of the earthquake location and source mechanisms of earthquakes dated March 2, 2016, at 19:49:41 pm