M7.5 quake rattles New Ireland Region
Centered at 4.760°S, 152.556°E the quake occurred at a depth of depth of 40.0 km, USGE/EHP reported.
Tsunami Evaluation
Based on the preliminary earthquake parameters, hazardous tsunami waves are possible for coasts located within 1,000 km of the earthquake epicenter, said PTWC in its initial evaluation.
The hazard regions include Papua New Guinea (PNG) and Solomon Islands.
However, the tsunami threat had largely passed, as of posting.
TSUNAMI OBSERVATIONS
--------------------
* THE FOLLOWING ARE TSUNAMI WAVE OBSERVATIONS FROM COASTAL
AND/OR DEEP-OCEAN SEA LEVEL GAUGES AT THE INDICATED LOCATIONS.
THE MAXIMUM TSUNAMI HEIGHT IS MEASURED WITH RESPECT TO THE
NORMAL TIDE LEVEL.
GAUGE TIME OF MAXIMUM WAVE
COORDINATES MEASURE TSUNAMI PERIOD
GAUGE LOCATION LAT LON (UTC) HEIGHT (MIN)
-------------------------------------------------------------
TAREKUKURE WHARF SB 6.7S 156.4E 0159 0.03M/ 0.1FT 32
NOTE TIDE GAUGE AT TAREKUKURE WHARF IS 450 KM FROM THE EPICENTER.
Earthquake Details
Magnitude: 7.5Mw (USGS/EHP)
Time: 2015-03-29 23:48:31 UTC
Location: 4.760°S, 152.556°E
Depth: 40.0 km
Distances:
- 55km (34mi) SE of Kokopo, Papua New Guinea
- 787km (489mi) NE of Port Moresby, Papua New Guinea
Aftershocks: The main event was followed by at least 3 significant aftershocks as of posting.
- M4.8; 56km S of Taron, Papua New Guinea 2015-03-30 01:51:26 UTC 53.8 km
- M5.0; 78km SSW of Taron, Papua New Guinea 2015-03-30 00:43:13 UTC 35.0 km
- M5.7; 91km SSW of Taron, Papua New Guinea 2015-03-30 00:15:30 UTC 35.0 km
Other recent significant quakes
- M4.7; 94km S of Taron, Papua New Guinea 2015-03-30 02:23:21 UTC 35.0 km
- M5.0; 144km W of Ile Hunter, New Caledonia 2015-03-30 02:12:47 UTC 54.4 km
- M4.7; Kuril Islands 2015-03-30 02:05:12 UTC 45.5 km
- M4.8; 25km S of Garcia Hernandez, Philippines 2015-03-30 01:47:57 UTC 35.0 km
- M5.4; 29km NW of Qimeng, China 2015-03-30 01:47:35 UTC 14.6 km
- M4.9; 158km NNE of Bitung, Indonesia 2015-03-29 14:35:38 UTC 81.4 km
- M5.6; 139km NW of Kota Ternate, Indonesia 2015-03-29 07:50:53 UTC 38.5 km
- M5.8; 40km WSW of Tilamuta, Indonesia 2015-03-28 22:28:51 UTC 123.9 km
- M5.6; 49km NE of Calama, Chile 2015-03-28 16:36:54 UTC 112.0 km