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More than 60 minor tremors hit Hawaii island in quake swarm

By Star-Advertiser staff

POSTED:
LAST UPDATED: 05:40 p.m. HST, Feb 22, 2012


An earthquake swarm on Hawaii island was recorded early this morning, causing more than 60 minor earthquakes, 14 of them greater than magnitude 2, according to the U.S. Geological Survey.

The seismic swarm began at about 1:17 a.m. today, and were located about three miles north-northwest of Kilauea volcano's summit. The swarm was still continuing as of 3 p.m.

Most of the earthquakes were not felt by Hawaii island. The USGS' "Did you feel it?" website received less than 10 felt reports in the first 12 hours of the swarm.

The earthquakes are located along the Ka'oiki Pali, a southeast-dipping normal fault near the boundary between Mauna Loa and Kilauea volcanoes.

Previous earthquake swarms have occurred along the Ka'oiki area in 1990, 1993, 1997 and 2006. The swarms lasted anywhere from between a day to several weeks, much of them rarely exceeding magnitude 4.

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On the net: U.S. Geological Survey






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