Home
Weather London
WeatherRadar
RainfallRadar
TemperatureRadar
WindRadar
LightningRadar
Weather News
Editor's Pick
Discover the app
Weather widget
Contact us
Apps
Career
    Home / Weather News /

    Volcano near Tonga erupts prompts tsunami warning from Alaska to Southern California

19:59
15 January 2022

Tsunami warning for West Coast
Hunga Tonga Hunga Ha’apai volcano erupts

Hunga Tonga Hunga Ha’apai volcano erupts on January 15 around 5pm local Tonga time.

The Hunga Tonga Hunga Ha’apai volcano erupts on January 15 around 5 pm local time in Tonga, prompting a tsunami warning for the entire U.S. West Coast and Pacific Islands. Tsunami waves have been pushing boats onto docks in Hawaii and, as expected, are arriving on the West Coast on Saturday morning.

Settings for external content

Privacy Policy

A submarine volcano located near Tonga in the Southern Pacific region called Hunga Tonga Hunga Ha’apai volcano erupted on Saturday afternoon local time in Tonga. This last impressive explosion comes after a series of strong eruptions happening since December 2021. The volcano is located about 18.6 miles southeast of Tonga's Fonuafo'ou island.

There was a large explosion that began on January 14, which sent ash about 12 miles up in the air, prompting tsunami warnings for the Tonga residents.

The eruption of January 15 produced a mushroom-like explosion that launched ash about 11 miles up in the air, this time there are also advisories for airlines. There was a magnitude 4.0 earthquake registered in Tonga shortly after the eruption.

Tsunami warnings are in effect for the entire U.S. West coast.

Tsunami waves of between 3 and 4 feet stroke, Nuku’alofa, the capital of Tonga, as the ash clouds were also seen obscuring the sun. Pacific islands like Fiji, and American Samoa, have also registered small tsunami waves. The Vanuatu Islands recorded larger tsunami waves between 3 and 8 feet.

In Hawaii, tsunami waves have pushed boats out of the water and onto docks.

The entire west coast of the United States, from Alaska through Southern California is also under a tsunami warning as tsunami waves arrive in the area.

There have already been some small waves affecting parts of California as they were expected to arrive by 7 am on Saturday morning. Authorities expect the waves to peak between 1 to 2 feet. People are advised to avoid the beaches and any coastal areas or activities on Saturday.

Experts advise that residents in areas above 3 feet in elevation are safe. The warning is for the immediate coast and areas below 3 feet in elevation.

This is a developing story, and we will continue to bring your prompt updates throughout the day.

More on the topic
Nighttime marina with sailboats and glowing harbor lights beneath electric-blue noctilucent clouds stretching across the dark twilight sky.
Saturday, 23 May 2026

A silvery haze in the sky

The season of the luminous night clouds
Temperature map of the UK and western Europe showing warm orange conditions with temperatures above 20°C, alongside thermometer and UV icons indicating strong sunshine and elevated UV levels.
Wednesday, 20 May 2026

Sunday peak

UV levels soar over Bank Holiday weekend
Heat map centered on London showing intense red temperatures across southeast England, with Heathrow highlighted at 33.5°C and nearby cities around 30–32°C.
Monday, 25 May 2026

33.5 °C and still rising

Hottest May day on record
All weather news
This might also interest you
Split image showing a person in a yellow jacket struggling against strong winds and heavy rain on a street at night on the left, and an Irish wind forecast map on the right with red and purple shading, gusts up to 75 mph, and a wind warning icon, divided by a curved white line.
Saturday, 24 January 2026

On this day...

Historic Storm Éowyn arrives
Split UK map showing warm temperatures up to 21 degrees in orange on the left and clear sunny conditions with temperatures from 12 to 18 degrees on the right, with sun icons across the country.
Thursday, 23 April 2026

Spring-like outlook

Bright and warm conditions take hold
Outline of Santa Claus with a yellow and white hat, "Ho-Ho-Ho" next to the outline above a Christmas tree.
Thursday, 25 December 2025

Merry Christmas!

Wishes from Weather & Radar
All articles
Weather & Radar

Weather & Radar is also available on

Google Play StoreApp Store

Company

Contact us Privacy Policy Legal info Accessibility statement

Services

Uploader

Socials

facebooktwittertikToklinkList