Extremely rare M4.8 earthquake hits near Shishmaref, Alaska – Biggest quake in the region

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Shishmaref, AK has had a total of 8 earthquakes since 1931. And the largest earthquake within 30 miles of Shishmaref, AK was a 4.8 Magnitude in 1982.

Today, July 9th, a 4.8-magnitude earthquake hit 28km (17mi) SSW of Shishmaref, Alaska, followed a smaller second M3.7 tremor 63km (39mi) SE of Shishmaref, Alaska. What’s going on?

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via USGS

The area around Shishmaref, Alaska, is not really known for producing earthquakes. According to Homefacts.com, it only had 8 earthquakes since 1931.

The largest earthquake to have hit the area was a M4.8 quake in 1982.

Today, on July 9, 2016, the region around was hit by another M4.8 quake at 8:35am (UTC) at a depth of approximately 22.8 km (14.2 mi) equalling the record of 1982.

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Number of earthquake events larger than M2.5 in a radius of 30 miles around Shishmaref, Alaska by year. via Homefacts

This major quake for the area was followed by a smaller tremor of 3.7-magnitude and at a depth of nearly 35.7 km (22.2 mi), ten minutes later. This is the fourth strongest quake in the region.

Two subsequent quakes hitting the Shishmaref’a area with few minutes interval is really weird. What’s going on there?

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