Magnitude 7.8 earthquake strikes off coast of Alaska

An earthquake with a magnitude of 7.8 struck off southern Alaska's coast late Tuesday, shaking the Alaska Peninsula and briefly sparking tsunami concerns bef...

Posted: Jul 22, 2020 9:50 AM
Updated: Jul 22, 2020 9:51 AM

An earthquake with a magnitude of 7.8 struck off southern Alaska's coast late Tuesday, shaking the Alaska Peninsula and briefly sparking tsunami concerns before officials said no destructive waves were coming.

The earthquake was centered in the Pacific Ocean about 60 miles southeast of Perryville on the sparsely populated Alaska Peninsula, striking around 10:12 p.m. local time (2:12 a.m. Wednesday ET).

The Alaska Peninsula protrudes from mainland Alaska and is flanked to the southwest by the Aleutian Islands.

Reports of significant damage, if any, weren't immediately available. A tsunami warning initially was issued for south Alaska and the Alaska Peninsula, but was canceled by early Wednesday, according to the National Oceanic and Atmospheric Administration.

The warning sent people to higher ground in cities like Sand Point, an island community of about 1,000 people off the peninsula, the Anchorage Daily News reported.

People in Sand Point gathered at a high school until shortly after midnight, when officials gave an all-clear, Jordan Keeler, an Anchorage-based city administrator, told the newspaper.

"The first wave didn't materialize, which is a great thing," Keeler, who was in contact with staff in Sand Point, told the Anchorage Daily News. No reports of major structural damage were made on the island, Keeler told the newspaper.

"We've canceled the (tsunami) advisories because it doesn't look like it's becoming a large wave or any larger," National Tsunami Warning Center Director James Gridley said, according to CNN affiliate KTUU.

Strong shaking was reported on the peninsula, the USGS said. Light to weak shaking was reported around Kodiak, about 300 miles northeast of the quake's center, and in Anchorage, some 530 miles from the center, according to the USGS.

This quake's depth was 28 kilometers, or 17 miles, the USGS said -- relatively shallow.

"Anything below 70 kilometers is considered a shallow quake," CNN meteorologist Allison Chinchar said. "That's important, because shallow earthquakes often cause the most damage, compared to the ones that are deeper, regardless of the strength."

More than 20 aftershocks followed the quake late Tuesday to early Wednesday, ranging from magnitudes of 2.8 to 6.1.

Mississippi Coronavirus Cases

Data is updated nightly.

Cases: 314710

Reported Deaths: 7254
CountyCasesDeaths
DeSoto21646260
Hinds20369416
Harrison17949309
Rankin13643278
Jackson13450246
Madison10113217
Lee9986174
Jones8384163
Forrest7689152
Lauderdale7198240
Lowndes6403148
Lamar623686
Lafayette6203119
Washington5341134
Bolivar4802132
Oktibbeha462998
Panola4596107
Pearl River4519146
Marshall4450103
Warren4393121
Pontotoc420872
Monroe4115133
Union411176
Neshoba4031176
Lincoln3969110
Hancock379586
Leflore3498125
Sunflower336290
Tate334784
Pike3327105
Scott316274
Alcorn313368
Yazoo311770
Itawamba300577
Copiah297465
Coahoma295579
Simpson295388
Tippah288768
Adams286982
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Marion269380
Leake268473
Wayne262841
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George248148
Newton246862
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Jasper221148
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Holmes189174
Clay185554
Stone182833
Tallahatchie178941
Clarke178080
Calhoun170932
Yalobusha164638
Smith162534
Walthall134245
Greene130633
Lawrence128724
Montgomery127142
Noxubee126734
Perry126338
Amite123142
Carroll121829
Webster114532
Jefferson Davis107133
Tunica105726
Claiborne102430
Benton100025
Humphreys96733
Kemper95828
Franklin83923
Quitman81116
Choctaw76418
Wilkinson67531
Jefferson65728
Sharkey50217
Issaquena1686
Unassigned00

Alabama Coronavirus Cases

Cases: 539829

Reported Deaths: 11038
CountyCasesDeaths
Jefferson798271529
Mobile41261809
Madison35132506
Tuscaloosa25915455
Shelby25294249
Montgomery24705593
Baldwin21392310
Lee15987172
Calhoun14569319
Morgan14422280
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DeKalb8865188
Talladega8339176
Walker7260278
Autauga7001108
Jackson6836112
Blount6771139
Colbert6320135
Coffee5578118
Dale4876113
Russell445138
Chilton4369113
Franklin426282
Covington4138118
Tallapoosa4044153
Escambia394777
Chambers3590123
Dallas3568153
Clarke351461
Marion3137101
Pike311977
Lawrence302698
Winston275773
Bibb264564
Geneva254078
Marengo249665
Pickens234862
Barbour232056
Hale223978
Butler219069
Fayette212662
Henry189643
Cherokee184645
Randolph182442
Monroe178141
Washington167739
Macon161150
Clay157157
Crenshaw153557
Cleburne149641
Lamar143236
Lowndes140553
Wilcox127430
Bullock123242
Conecuh110829
Coosa109228
Perry107826
Sumter104932
Greene92634
Choctaw61024
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Columbus
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High pressure will continue to dominate our weather forecast for the end of the weekend. We will see our area filled with plenty of sunshine but clouds will be on the increase into the evening hours. There will be some changes for the start work week in our weather forecast as low pressure brings back some chances for showers and thunderstorms.
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