#tsunamigenic
letsunamigenic potential, or for large earthquakes with tsunamigenic potential located in the Pacific region but outside the Pacific Basin.

EVALUATION
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* AN EARTHQUAKE WITH A PRELIMINARY MAGNITUDE OF 7.0 OCCURRED IN
THE LOYALTY ISLANDS AT 2123 UTC ON FRIDAY SEPTEMBER 25 2026.

September 25, 2026 at 9:32 PM
We do. Buoy stuff is incorporated and so is onshore seismic data and (where it exists) offshore seismic data. Seismic is important for the immediate area of tsunamigenic earthquake as seismic waves travel extremely fast (~6-8 km/s for P-waves and 3-4.5 km/s for S-waves) compared to tsunami waves.
September 24, 2026 at 3:40 AM
[10/10] Les auteurs demandent donc d’intégrer les glissements sous-marins aux cartes de risque et aux systèmes d’alerte, aujourd’hui surtout fondés sur les séismes. Mieux surveiller les fonds marins et préparer les villes côtières devient une priorité pour réduire l’exposition. #geography #tsunami
Submarine Landslides Could Cause Wide‐Spread Tsunami Impact in the East Sea (Sea of Japan)
We constructed a 25 km3 prehistoric submarine landslide in the southwest East Sea (Sea of Japan) to quantify its tsunamigenic hazard using coupled modeling Simulated tsunami amplitudes reach 9.3 ...
agupubs.onlinelibrary.wiley.com
September 13, 2026 at 7:53 AM
enic potential, or for large earthquakes with tsunamigenic potential located in the Pacific region but outside the Pacific Basin.

EVALUATION
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* AN EARTHQUAKE WITH A PRELIMINARY MAGNITUDE OF 6.7 OCCURRED IN
THE SCOTIA SEA AT 0823 UTC ON SATURDAY AUGUST 22 2026.

August 22, 2026 at 8:31 AM
or large earthquakes with tsunamigenic potential located in the Pacific region but outside the Pacific Basin.
August 20, 2026 at 6:07 PM
tential, or for large earthquakes with tsunamigenic potential located in the Pacific region but outside the Pacific Basin.

EVALUATION

NO TSUNAMI IS EXPECTED. REPEAT. NO TSUNAMI IS EXPECTED.
HOWEVER...SOME AREAS MAY HAVE EXPERIENCED STRONG SHAKING.

August 12, 2026 at 3:52 AM
r for large earthquakes with tsunamigenic potential located in the Pacific region but outside the Pacific Basin.

EVALUATION

BASED ON ALL AVAILABLE DATA A DESTRUCTIVE PACIFIC-WIDE TSUNAMI IS
NOT EXPECTED AND THERE IS NO TSUNAMI THREAT TO HAWAII. REPEAT. A
July 13, 2026 at 2:56 PM
migenic potential, or for large earthquakes with tsunamigenic potential located in the Pacific region but outside the Pacific Basin.

EVALUATION

NO TSUNAMI IS EXPECTED. REPEAT. NO TSUNAMI IS EXPECTED.
HOWEVER...SOME AREAS MAY HAVE EXPERIENCED SHAKING.

July 10, 2026 at 6:23 AM
kes with tsunamigenic potential located in the Pacific region but outside the Pacific Basin.

EVALUATION

BASED ON ALL AVAILABLE DATA A DESTRUCTIVE PACIFIC-WIDE TSUNAMI IS
NOT EXPECTED AND THERE IS NO TSUNAMI THREAT TO HAWAII. REPEAT. A
June 26, 2026 at 11:43 AM
tential, or for large earthquakes with tsunamigenic potential located in the Pacific region but outside the Pacific Basin.

EVALUATION

BASED ON ALL AVAILABLE DATA A DESTRUCTIVE PACIFIC-WIDE TSUNAMI IS
NOT EXPECTED AND THERE IS NO TSUNAMI THREAT TO HAWAII. REPEAT. A
June 24, 2026 at 10:47 PM
migenic potential, or for large earthquakes with tsunamigenic potential located in the Pacific region but outside the Pacific Basin.

EVALUATION

BASED ON ALL AVAILABLE DATA A DESTRUCTIVE PACIFIC-WIDE TSUNAMI IS
NOT EXPECTED AND THERE IS NO TSUNAMI THREAT TO HAWAII. REPEAT. A
June 19, 2026 at 7:04 AM
r for large earthquakes with tsunamigenic potential located in the Pacific region but outside the Pacific Basin.

EVALUATION

NO TSUNAMI IS EXPECTED. REPEAT. NO TSUNAMI IS EXPECTED.
HOWEVER...SOME AREAS MAY HAVE EXPERIENCED SHAKING.

THIS WILL BE THE ONLY STATEMENT ISSUED FOR THIS EVENT UNLESS
June 17, 2026 at 12:19 PM
tential, or for large earthquakes with tsunamigenic potential located in the Pacific region but outside the Pacific Basin.

EVALUATION

NO TSUNAMI IS EXPECTED. REPEAT. NO TSUNAMI IS EXPECTED.
HOWEVER...SOME AREAS MAY HAVE EXPERIENCED SHAKING.

June 10, 2026 at 8:42 AM
e earthquakes with tsunamigenic potential located in the Pacific region but outside the Pacific Basin.

EVALUATION

A TSUNAMI THREAT EXISTS FOR PARTS OF THE PACIFIC LOCATED CLOSER
TO THE EARTHQUAKE. HOWEVER... BASED ON ALL AVAILABLE DATA...
June 8, 2026 at 12:36 AM
r for large earthquakes with tsunamigenic potential located in the Pacific region but outside the Pacific Basin.

EVALUATION

NO TSUNAMI IS EXPECTED. REPEAT. NO TSUNAMI IS EXPECTED.
HOWEVER...SOME AREAS MAY HAVE EXPERIENCED SHAKING.

THIS WILL BE THE ONLY STATEMENT ISSUED FOR THIS EVENT UNLESS
June 3, 2026 at 4:03 AM
tial, or for large earthquakes with tsunamigenic potential located in the Pacific region but outside the Pacific Basin.

EVALUATION
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* AN EARTHQUAKE WITH A PRELIMINARY MAGNITUDE OF 5.9 OCCURRED IN
HAWAII AT 0746 UTC ON SATURDAY MAY 23 2026.

May 23, 2026 at 7:53 AM
The Nat Geo graphics team did a phenomenal job with this map of giant landslides in Alaska for my magazine feature story. Note the overlap between where giant, potentially tsunamigenic landslides are on the landscape and popular cruise ship routes.
May 15, 2026 at 4:10 PM
kes with tsunamigenic potential located in the Pacific region but outside the Pacific Basin.

EVALUATION

BASED ON ALL AVAILABLE DATA A DESTRUCTIVE PACIFIC-WIDE TSUNAMI IS
NOT EXPECTED AND THERE IS NO TSUNAMI THREAT TO HAWAII. REPEAT. A
May 15, 2026 at 11:37 AM
This long-lasting, globally observable seiche is only the second time such a signal has been observed, after the Dickson Fjord event in 2023, described in this study by @ksvenenvig.bsky.social and others www.science.org/doi/10.1126/...
A rockslide-generated tsunami in a Greenland fjord rang Earth for 9 days
Climate change is increasingly predisposing polar regions to large landslides. Tsunamigenic landslides have occurred recently in Greenland (Kalaallit Nunaat), but none have been reported from the east...
www.science.org
May 6, 2026 at 12:21 PM
One of the neat things was that the seiche (sloshing back and forth of water within the fjord) continued for over a day and we could record the seismic signal that was generated, using seismometers all around the world.
A rockslide-generated tsunami in a Greenland fjord rang Earth for 9 days
Climate change is increasingly predisposing polar regions to large landslides. Tsunamigenic landslides have occurred recently in Greenland (Kalaallit Nunaat), but none have been reported from the east...
www.science.org
May 6, 2026 at 12:21 PM
It look a few days to get decent satellite imagery to confirm the landslide and location. Meanwhile, @davepetley.bsky.social wrote a short blog post with initial hypotheses eos.org/thelandslide...
A large, tsunamigenic landslide in Tracy Arm inlet, Alaska
On 10 August 2025, it is likely that a large, tsunamigenic landslide occurred in Tracy Arm inlet, in Alaska.
eos.org
May 6, 2026 at 12:21 PM
migenic potential, or for large earthquakes with tsunamigenic potential located in the Pacific region but outside the Pacific Basin.

EVALUATION

BASED ON ALL AVAILABLE DATA A DESTRUCTIVE PACIFIC-WIDE TSUNAMI IS
NOT EXPECTED AND THERE IS NO TSUNAMI THREAT TO HAWAII. REPEAT. A
April 20, 2026 at 8:47 AM
r for large earthquakes with tsunamigenic potential located in the Pacific region but outside the Pacific Basin.

EVALUATION

A TSUNAMI THREAT EXISTS FOR PARTS OF THE PACIFIC LOCATED CLOSER
TO THE EARTHQUAKE. BUT IT IS STILL TOO EARLY TO DETERMINE WHETHER
April 20, 2026 at 8:04 AM
e earthquakes with tsunamigenic potential located in the Pacific region but outside the Pacific Basin.

EVALUATION

BASED ON ALL AVAILABLE DATA A DESTRUCTIVE PACIFIC-WIDE TSUNAMI IS
NOT EXPECTED AND THERE IS NO TSUNAMI THREAT TO HAWAII. REPEAT. A
March 22, 2026 at 6:26 AM