Alaska quake damage could have been much worse
Strict building codes helped structures survive
ANCHORAGE, Alaska — The magnitude 7.0 earthquake that rattled Alaska’s largest city cracked roads and collapsed highway ramps, but there were no reports of widespread catastrophic damage or collapsed buildings.
There’s a good reason for that. A devastating 1964 Alaska earthquake — the most powerful on record in the United States — led to withstand the shifting earth Friday.
“Congratulations to the people of Alaska for being really prepared for this earthquake,” U.S. Geological Survey Geophysicist Paul Caruso said Saturday. “Because a magnitude 7.0 in a city like that, you know, it could have been significantly worse.”
Gov. Bill Walker said sometimes people, including himself, grouse about stringent building codes. But he’s “really glad” they were in place as he only had minor water damage at his home.
“Building codes mean something,” he said Friday.
The quake was centered about 7 miles north of Anchorage, which has a population of about 300,000. People ran from their offices or took cover under desks. A 5.7 aftershock arrived within minutes, followed by a series of smaller quakes.
The two big back-to-back quakes knocked items off shelves, disrupted power, broke store windows and briefly triggered a tsunami warning for islands and coastal areas south of the city. Walker issued a disaster declaration, and President Donald Trump declared an emergency, allowing the Federal Emergency Management Agency to coordinate disaster relief.
There were no reports of deaths or serious injuries.
Still, aftershocks Saturday continued to fray nerves, with people worrying about being caught in more massive shakers.
“They’re disturbing, and I’m not putting anything away that could fall until they calm down,” Randall Cavanugh, an Anchorage attorney, said after a restless night at home. “I kept waking up.”
By mid-morning, there had been about 550 aftershocks, including 11 with magnitudes of 4.5 or greater, Caruso said.
The aftershocks should be weaker and less frequent in the coming days, but officials can’t say for sure when they’ll stop, he said.
Anchorage Mayor Ethan Berkowitz said the extent of damage was “relatively small” considering the scale of Friday’s earthquake. He also credited building codes for minimizing structure damage.
The 800-mile trans Alaska oil pipeline was shut down for hours while crews were sent to inspect it for damage.