Magnitude 7.0 - VANUATU
2011 August 20 18:19:24 UTC
- This event has been reviewed by a seismologist.
|Depth||28.5 km (17.7 miles)|
|Distances||69 km (42 miles) SSW of PORT-VILA, Efate, Vanuatu|
177 km (109 miles) NW of Isangel, Tanna, Vanuatu
328 km (203 miles) SSE of Luganville, Espiritu Santo, Vanuatu
1853 km (1151 miles) ENE of BRISBANE, Queensland, Australia
|Location Uncertainty||horizontal +/- 13.4 km (8.3 miles); depth +/- 4.7 km (2.9 miles)|
|Parameters||NST=473, Nph=475, Dmin=455.3 km, Rmss=1.21 sec, Gp= 18°,|
M-type=regional moment magnitude (Mw), Version=9
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Scientific & Technical Information
The earthquake locations and magnitudes cited in NOAA tsunami statements and bulletins are preliminary and are superseded by USGS locations and magnitudes computed using more extensive data sets.
General Tsunami Information
- Preliminary Earthquake Report
- U.S. Geological Survey, National Earthquake Information Center:
World Data Center for Seismology, Denver