Alaskans rattled by more than 2,100 aftershocks since last week's earthquake

Residents have been rattled by more than 2,100 aftershocks since Friday's magnitude 7.0 quake. The earthquake closed public buildings and schools, clogged roads and knocked homes off foundations.

Friday's magnitude 7.0 quake closed buildings, schools and clogged roads

This aerial photo shows damage at the Glenn Highway near Mirror Lake after earthquakes in the Anchorage area, Alaska, Friday, Nov. 30, 2018. Back-to-back earthquakes shattered highways and rocked buildings Friday in Anchorage and the surrounding area, sending people running into the streets and briefly triggering a tsunami warning for islands and coastal areas south of the city. (Marc Lester/Anchorage Daily News via AP)

Life was beginning to return to normal Monday in Alaska after a powerful earthquake near Anchorage on Friday, but people nervous about aftershocks were still grappling with damage that closed public buildings and schools, clogged roads and knocked homes off foundations.

Some residents went back to work. But state transportation officials again urged people who live north and south of Anchorage to take the day off or work from home to reduce traffic.

Rockfalls were still occurring along cliff-lined Seward Highway, while major repairs were underway on hard-hit Glenn Highway, the main road leading north of the city, Department of Transportation spokeswoman Meadow Bailey said.

"We don't want the commute to be frustrating because people will experience delays," she said.

Al and Lyn Matthews show structural cracks in their home in south Anchorage, Alaska, following earthquakes Friday. (AP Photo/Michael Dinneen)

Residents still jittery from the 7.0 quake on Friday have been rattled even further by more than 2,100 aftershocks. A dozen have had magnitudes of 4.5 or greater.

"Anything that moves, you're on your last nerve," said Anchorage resident Lyn Matthews, whose home sustained substantial structural damage, including a sunken foundation.

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Matthews, who was back at work at a chiropractor's office, and her husband have no earthquake insurance.

"I'm scared to death," she said.

The earthquake struck 11 kilometres north of Anchorage, swaying buildings, disrupting power and causing heavy damage to Glenn Highway.

This photo provided by Alaska Railroad Corp. shows damage from the earthquake by Nancy Lake, near Willow, Alaska. The railroad will use heavy equipment to repair the damage before it can resume train traffic between Anchorage and Fairbanks, Alaska's two largest cities. (Lloyd Tesch/Alaska Railroad Corp. via AP)

There were no reports of deaths, serious injuries or widespread catastrophic damage in the state with strict building codes implemented after a 1964 earthquake with a magnitude of 9.2 — the second most powerful of any quake ever recorded.

No outbreaks of disease or other major health problems have been reported.

Still, federal officials declared a public health emergency on Monday, saying the action will ensure that Medicaid funds continue to be issued despite the temporary closure of offices. Mental health aid is also available for people stressed by the disaster.

The chance is very small, but it's not impossible.- Paul Caruso, U.S. Geological Survey

"Remember, whatever you're feeling right now is valid," Anchorage Health and Human Services director Natasha Pineda said at a weekend briefing.

Earthquake forecasts cited a 4 per cent chance of another earthquake with a magnitude of 7.0 or greater in the first week after the first quake.

"The chance is very small, but it's not impossible," U.S. Geological Survey Geophysicist Paul Caruso said.

The federal courthouse in Anchorage was among structures that remained closed. Officials said the U.S. District Court and the attached federal building in Anchorage will be closed at least through Thursday following a preliminary evaluation by the General Services Administration.

Empty shelves where bread is normally located are shown at a grocery store in Anchorage on Sunday. Anchorage officials urged residents not to stock up and hoard supplies because the supply chain of goods was not interrupted. (AP Photo/Mark Thiessen)

GSA spokesman Chad Hutson said boilers in the federal building were leaking, leaving it without heat.

The nearby Historic Federal Building, where the bankruptcy court is located, also remained closed. Officials said late Monday afternoon a detailed evaluation of the building found no structural deficiencies and the building is set to reopen Tuesday.

Schools in Anchorage have been closed until Dec. 10, which should also reduce traffic. An elementary school in the Anchorage suburb of Eagle River has been deemed unsafe to occupy, while multiple other campuses in the region are undergoing repairs and cleanup, according to the Anchorage School District.

A middle school in the small town of Houston north of Anchorage likely will remain closed through the year.

The supply chain of food and other goods delivered to the Port of Anchorage from the Lower 48 has not been disrupted.

About 90 per cent of all the goods sold in Alaska are delivered to the Port of Anchorage, where officials have completed a preliminary damage assessment. There were some structural issues with some trestles, but nothing that should impede operations, according to Municipal Manager Bill Falsey.