Strong Quakes Strike ENE of Hihifo, Tonga

Strong quakes occur SW of Apia, Samoa

The quakes may have signaled the start of a new phase of heightened seismicity in the Pacific Ring of Fire, according to FIRE-EARTH models.

EQ Details [USGS/EHP]

M6.5;  99km ENE of Hihifo, Tonga 2015-03-30 at 08:48:26 UTC,  depth=15.5 km
[99km (62mi) ENE of Hihifo, Tonga; 224km (139mi) SW of Apia, Samoa]
M6.4; 109km NE of Hihifo, Tonga 2015-03-30 08:18:00 UTCd depth=11.5 km
[109km (68mi) NE of Hihifo, Tonga]
M5.6; 90km NE of Hihifo, Tonga 2015-03-30 07:56:54 UTCd depth=10.0 km

Tsunami Evaluation

NWS PACIFIC TSUNAMI WARNING CENTER EWA BEACH HI SAID:
BASED ON ALL AVAILABLE DATA A DESTRUCTIVE PACIFIC-WIDE TSUNAMI IS
NOT EXPECTED.

Other Significant Seismicity

M4.9; 88km S of Taron, Papua New Guinea 2015-03-30 11:43:21 UTC 35.0 km
M4.8; 69km SSE of Kokopo, Papua New Guinea 2015-03-30 11:23:11 UTC 72.6 km
M5.5; 179km SSE of Amsterdam Island, France 2015-03-30 10:34:53 UTC 10.0 km
4.0; 12km NW of Ludlow, California 2015-03-30 09:21:56 UTC 2.5 km
M6.5 See above.
5.3; 42km SE of Kokopo, Papua New Guinea 2015-03-30 08:31:47 UTC 35.0 km
M6.4 See above.
M5.6 See above.

Related Links

• Powerful Quake Strikes PNG March 30, 2015