Posted: 7/28/2021 / 8:32 PM HSTUpdated: 7/28/2021 / 9:00 PM HST
HONOLULU (KHON2) – The Pacific Tsunami Warning Center (PTWC) announced the state of Hawaii is under tsunami surveillance following an 8.1 magnitude earthquake off Alaska on Wednesday July 28.
PTWC officials said the earthquake occurred around 8:16 p.m. Hawaiian Standard Time off the coast of the Alaska Peninsula.
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PTWC officials said the earthquake may have triggered a tsunami and an investigation is being conducted to see if there is a tsunami threat to Hawaii.
What you need to know before and after a tsunami event
The earliest estimated arrival of the first wave of tsunami in Hawaii – when tsunami waves hit the islands – is 12:53 p.m. Thursday, July 29, according to PTWC officials.
Residents in threatened coastal areas are advised to remain vigilant for information and to follow instructions from national and local authorities, the PTWC said.