The Enid News and Eagle, Enid, OK

National and world

August 31, 2013

Dozens of aftershocks expected on Alaskan island

ANCHORAGE, Alaska — Dozens of noticeable aftershocks above magnitude 4.0 are expected in the remote Aleutian Island region off Alaska in the days and weeks following a major 7.0 earthquake, the Alaska state seismologist said Saturday.

A dozen measurable aftershocks have already hit the region since Friday's quake, including one reaching 6.1 in strength, said seismologist Michael West. There have been more than 30 aftershocks measuring at least magnitude 2.5.

None of the aftershocks are expected to cause a notable tsunami, since the initial quake did not cause one. And West said experts are not too worried this quake will trigger another significant quake nearby in the near future.

"This is very common area for earthquakes," West said. Temblors above magnitude 5.0 are felt every month.

The site of Friday's quake is quite active. Significant quakes were felt just to the east and the west of Friday's earthquake in 1986, 1996 and 2003.

"This was exactly the earthquake that's supposed to happen," West said, noting that it's part of a pattern, when examined in a scientific way.

The Pacific tectonic plate is always pushing under America. It builds up stress and then earthquakes happen. Of course, West notes, he has be cautious about saying something will never happen, but he's not particularly concerned.

There have been no reports of damage or injuries from the earthquake, which was strongly felt in Atka, an Aleut community of 64 people, and the larger Aleutian town of Adak, where 320 people live.

The earthquake and the aftershocks didn't trigger any tsunami warnings, but Michael Burgy with the West Coast and Alaska Tsunami Warning Center in Palmer, Alaska, said the center is monitoring for potential tsunamis caused by landslides, either on land or under water.

The Alaska Earthquake Information Center said the primary earthquake was centered 67 miles southwest of Adak, about 1,200 miles southwest of Anchorage. Shaking lasted up to one minute.

The 6.1 aftershock struck in the same general area at 10:39 p.m. Friday.

The 7.0 quake occurred offshore in the subduction zone where plates of the Earth's crust grind and dive. By contrast, California's most famous fault line, the San Andreas, is a strike-slip fault. Quakes along strike-slip faults tend to move horizontally.

The communities are located in a sparsely populated region and both played roles in World War II.

Atka residents were displaced during the war, relocating to Southeast Alaska so the U.S. government could demolish the village to prevent the Japanese from seizing it as they had other Aleutian communities. After the war, the U.S. Navy rebuilt the community and residents returned. Today, the community is a cluster of solidly built utilitarian buildings scattered over rolling hills that turned emerald green in warmer months.

Adak, 110 miles to the west, had been home to U.S. military installations that allowed forces to wage a successful offense against the Japanese after they seized the Aleutian Islands of Kiska and Attu. After the war. Adak was transformed into a Naval air station that served as a submarine surveillance center during the Cold War. Later, the facilities were acquired by the Aleut Corp. — a regional native corporation — in a federal land-transfer agreement. It became a city in 2001 and today retains its military appearance.~~~

Associated Press writers Donna Blankinship in Seattle and Alicia Chang in Los Angeles contributed to this report.

 

1
Text Only
National and world
  • LibyaEvac.jpg US evacuates embassy in Libya amid clashes

    The United States shut down its embassy in Libya on Saturday and evacuated its diplomats to neighboring Tunisia.

    July 26, 2014 1 Photo

  • Ukraine Plane web.jpg U.S.: Russia is firing artillery across border into Ukraine

    If true, the allegations mean Moscow is playing a more direct role in the fighting than it has been accused of up to now — a dangerous turn in what is already the gravest crisis between Russia and the West since the end of the Cold War.

    July 26, 2014 1 Photo

  • Resilient Stocks web.jpg Global tensions don’t dent U.S. enthusiasm for stocks

    As they have all year, investors responded by using it as an opportunity to buy stocks. In fact, they’ve “bought on the dip” consistently for three years, keeping the market’s slips from becoming slides. Stock pullbacks since 2011 have been rare and relatively small, and none have become severe enough to qualify as a correction, Wall Street parlance for a fall of 10 percent or more from a peak.

    July 26, 2014 1 Photo

  • Obama leaders web.jpg Migrants: President Obama urges Latino leaders, Republicans to help

    White House adviser Dan Pfeiffer said that House Speaker John Boehner’s effort to sue Obama over his use of executive authority “has opened the door for Republicans possibly considering impeachment at some point in the future.”

    July 25, 2014 1 Photo

  • Mideast web.jpg Gaza sides agree to lull but truce efforts stall

    The latest diplomatic setbacks, after several days of high-level diplomacy in the region, signaled that both sides are digging in and that the fighting in Gaza is likely to drag on.
    Israel wants more time to destroy Hamas military tunnels and rocket launching sites in Gaza, while the territory’s Hamas rulers want international guarantees that a Gaza border blockade will be lifted before they cease fire.

    July 25, 2014 1 Photo

  • APTOPIX Hospital Shoo_Hass.jpg Official: Hospital gunman intended to kill others

    A psychiatric patient ranted about a hospital gun ban before opening fire at the suburban medical complex, killing his caseworker and grazing his psychiatrist before the doctor pulled out his own weapon and fired back.

    July 25, 2014 1 Photo

  • Darth Vader is polling higher than all potential 2016 presidential candidates

    On the other hand, with a net favorability of -8, Jar Jar is considerably more popular than the U.S. Congress, which currently enjoys a net favorability rating of -65.

    July 25, 2014

  • g000258000000000000245c0063741aaafcc815c5b3199362fb09f8a7c3.jpg Llama on the loose corralled in Missouri town

    
Gibson called Diamond City Hall for help but the police chief was out on another call. The city clerk came to join in the surveillance ...

    July 25, 2014 2 Photos

  • Severe Weather web.jpg Tornado slams Virginia campground; 2 dead

    A couple from New Jersey was killed when a tree fell on their tent. Their 13-year-old son, in a tent next to them, had life-threatening injuries.
    He was among three dozen people hurt.

    July 25, 2014 1 Photo

  • Aviations Bad Week web.jpg Bad week for aviation: Airline disasters come in a cluster

    Industry analysts and safety experts shake their heads at the seeming randomness of the tragedies, saying they can find no common themes. Nor do they think the events indicate that flying is suddenly becoming less safe.

    July 25, 2014 1 Photo

Featured Ads