Magnitude 7.0 - NEAR THE NORTH COAST OF PAPUA, INDONESIA
2010 June 16 03:16:27 UTC
- This event has been reviewed by a seismologist.
|Depth||18 km (11.2 miles) set by location program|
|Region||NEAR THE NORTH COAST OF PAPUA, INDONESIA|
|Distances||195 km (120 miles) N of Enarotali, Papua, Indonesia|
310 km (190 miles) ESE of Manokwari, Papua, Indonesia
1305 km (810 miles) NNE of DARWIN, Northern Territory, Australia
3330 km (2060 miles) E of JAKARTA, Java, Indonesia
|Location Uncertainty||horizontal +/- 5.3 km (3.3 miles); depth fixed by location program|
|Parameters||NST=246, Nph=246, Dmin=485.4 km, Rmss=1.32 sec, Gp= 18°,|
M-type=teleseismic moment magnitude (Mw), Version=A
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At least seventeen people killed, 10,000 displaced, 2,556 buildings damaged or destroyed (VI), landslides and utilities disrupted on Yapen. Several buildings damaged or destroyed (VI) on Biak. Felt (V) at Nabire and (IV) at Manokwari, Papua. Also felt at Aberpura.
The magnitude 7.0 Papua, Indonesia earthquake of June 16, 2010, 03:16 UTC, occurred as a result of strike-slip faulting. The causative fault has not yet been identified, though the radiation pattern of seismic waves generated by the earthquake is consistent with either left-lateral faulting on an east-northeast striking fault or right-lateral faulting on a north-northwest striking fault.
Eastern Indonesia is characterized by complex tectonics in which motions of numerous small plates are accommodating large-scale convergence between the Australia, Pacific, and Eurasia plates. The earthquake lies near the boundary between what some workers term the Birds Head microplate and the Maoke microplate. This microplate boundary has been modeled as an east-northeast trending boundary that accommodates approximately 80 mm/year left-lateral motion. The focal mechanism of today's earthquake is consistent with it occurring within the proposed microplate boundary, either as left-lateral slip on a boundary-parallel fault or as right-lateral slip on a conjugate fault that is tectonically related to the microplate boundary. In light of large uncertainty in tectonic modeling of eastern Indonesia, however, any particular hypothesis for the causative fault of the earthquake must be regarded as tentative pending further study.
Eastern Indonesia experiences many strong earthquakes. Since 1979, the region within 300 km of the main-shock of June 16, 2010, has experienced eight other earthquakes with magnitude larger than 7, the largest of which had magnitude 8.2.
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