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The 2014 Palma Bay earthquake occurred at 02:54 Alaska Daylight Time on July 25 in the northern southeastern panhandle of the U.S. state of Alaska. The earthquake registered 6.0 on the moment magnitude scale and had a maximum Mercalli intensity of IV (Light). It was centered on Palma Bay, 26 miles (42 km) from Elfin Cove and 94 miles (151 km) from the state capital of Juneau.[1] Although there were no injuries or deaths, there were significant disruptions to Internet and telecommunications throughout Southeast Alaska, including to major telecom providers Alaska Communications Systems (ACS) and AT&T wireless, Internet and other communication systems.
  Anchorage  | |
| UTC time | 2014-07-25 10:54:49 |
|---|---|
| ISC event | 606920342 |
| USGS-ANSS | ComCat |
| Local date | July 25, 2014 |
| Local time | 02:54 ADT |
| Magnitude | 6.0 Mw[1] |
| Epicenter | 58°19′N 136°58′E / 58.31°N 136.96°E[2] |
| Type | Oblique-slip[1] |
| Areas affected | Alaska United States |
| Max. intensity | MMI IV (Light)[1] |
Earthquake
editThe earthquake struck along the strike-slip Queen Charlotte Fault, connecting Alaska's Aleutian Islands tectonic area with Southeast Alaska.[3] The mainshock was preceded by less than one minute by a M5.4 foreshock in the immediate area. There were also a number of other M5 or higher events in the days leading up to the main event, but Alaska state seismologist Michael West stated that there was no evidence that they were related.[4]
Damage
editThe earthquake caused widespread outages to telecommunications in Southeast Alaska. Cellphone, Internet and other communications were disrupted for customers of ACS and AT&T throughout the day. Businesses in the area were unable to process credit card transactions, and many local websites were inaccessible.[5] Outages were caused by damage to undersea fiber-optic cable serving the area. Other outages included the website of Alaska Electric Light & Power, the area's largest provider of electricity, although electrical service was not disrupted.[6]
See also
editReferences
edit- ^ a b c d AEIC. "M6.0 July 25, 2014 Palma Bay Earthquake". Alaska Earthquake Information Center. Archived from the original on 3 June 2015. Retrieved 25 July 2014.
- ^ M6.1 – 72 km W of Gustavus, Alaska, United States Geological Survey
- ^ "Mexico, Alaska and the English Channel: Earthquakes 23-30 July 2014". Decoded Science. Archived from the original on 8 August 2014. Retrieved 31 July 2014.
- ^ Kelly, Casey (28 July 2014). "Are Southeast Alaska's recent earthquakes connected?". KTOO-TV. Archived from the original on 11 August 2014. Retrieved 31 July 2014.
- ^ "5.9 magnitude earthquake disrupts Southeast telecomms". KTOO-TV. 25 July 2014. Archived from the original on 9 August 2014. Retrieved 25 July 2014.
- ^ "Quake causes break in communications". Juneau Empire. Archived from the original on 10 May 2017. Retrieved 25 July 2014.
External links
edit- The International Seismological Centre has a bibliography and/or authoritative data for this event.