Ocean & seismic activity

Tsunami warnings & observations

Official tsunami bulletins, earthquakes, monitoring stations and historical events on one map, with traceable sources and timestamps.

Situation map ↓Set up tsunami notifications ↗

None of the warning sources currently reachable reports an active warning, watch, advisory or threat message.

QuakeMap24 is not a warning authority. Follow instructions from the responsible local authorities for protective action. Sources & data freshness ↓

0Active official bulletins

27Events in the last 60 days

990 / 1857Monitoring stations · Recent observations

822Confirmed events since 1900

NOAA · GDACS · JMA · BMKG

Situation map

Map view

Bulletin statusPeriod

WarningAdvisoryWatchThreat messageInformationValidity expired

Official alert areas are not modelled inundation zones. The source country identifies the earthquake, not necessarily an affected coastline. Historical events and monitoring stations can be toggled separately.

Ports from the NGA World Port Index that fall inside the officially published warning areas. A warning area is not a computed inundation zone. This list describes neither damage nor any restriction of port operations.

Events in the last 60 days

M5.145 miles SW of Nikolski, AlaskaInformationSep 1, 2026, 6:52 AM UTC M4.575 miles SW of Eureka, CaliforniaInformationAug 29, 2026, 2:46 AM UTC M4.1

United StatesAlaskaInformationAug 24, 2026, 8:21 PM UTC M5.125 miles S of Buldir I., AlaskaInformationAug 23, 2026, 11:27 PM UTC M6.7in the Scotia Sea, southeast of South AmericaInformationAug 22, 2026, 8:32 AM UTC M4.0

United StatesAlaskaInformationAug 22, 2026, 7:45 AM UTC M6.8

PeruAyacuchoInformationAug 20, 2026, 6:16 PM UTC M4.6

United StatesAlaskaInformationAug 17, 2026, 8:39 PM UTC

Information Aug 22, 2026, 8:32 AM UTC

in the Scotia Sea, southeast of South America

Magnitude: 6.7
Depth · INGV: 14.8 km
Event time: Aug 22, 2026, 8:22 AM UTC

Earthquake event page ↗

Area reported by source

in the Scotia Sea, southeast of South America

Official source · NOAA NTWC ↗

Bulletin timeline

Information NOAA NTWC
Aug 22, 2026, 8:32 AM UTC
Valid until: Aug 22, 2026, 9:32 AM UTC
Original authority text
Original source language; no automatic translation.
This is a Tsunami Information Statement for the U.S. east coast, Gulf of America states, and eastern Canada.
This is a Tsunami Information Statement for the U.S. east coast, Gulf of America states, and eastern Canada. - Event details: Preliminary magnitude 6.7 (Mwp) earthquake / Lat: -60.500, Lon: -47.200 at 2026-08-22T08:22:40 UTC An information statement indicates that an earthquake has occurred, but does not pose a tsunami threat, or that a tsunami warning, advisory, or watch has been issued for another section of the ocean.
There is no tsunami danger for the U.S. east coast, the Gulf of America states, or the eastern coast of Canada. Based on earthquake information and historic tsunami records, the earthquake is not expected to generate a tsunami. This will be the only U.S. National Tsunami Warning Center message for this event unless additional information becomes available. Refer to the internet site tsunami.gov for more information.
Official source ↗
Information NOAA PTWC
Aug 22, 2026, 8:30 AM UTC
Valid until: Aug 22, 2026, 9:30 AM UTC
Original authority text
Original source language; no automatic translation.
PTWC TSUNAMI INFORMATION STATEMENT
PTWC TSUNAMI INFORMATION STATEMENT - Event details: Preliminary magnitude 6.7 (Mwp) earthquake / Lat: -60.481, Lon: -47.185 at 2026-08-22T08:22:36Z
N/A
Official source ↗

Tsunami arrival times

Official arrival times from the NOAA products for this bulletin, counted from the earthquake time. These are the warning centre forecasts, not measured times.

0:00 hEarthquake (origin) · Aug 22, 2026, 8:22 AM UTC
14:17 hChristiansted · Virgin Gorda · DART 41421
14:22 hLimetree Bay · San Juan coast · Tortola +5
14:27 hArecibo · Yabucoa
14:32 hAguadilla
14:37 hDART 41420
14:42 hPonce · Penuelas · Culebra +2
14:47 hFajardo · Charlotte Amalie
14:52 hMagueyes Island
15:07 hDART 44401
15:17 hSamana Cay
15:22 hBermuda
15:32 hGuantanamo Bay
15:52 hDART 41424
16:27 hDART 44402 · Settlement Point
16:47 hPalm Beach
16:52 hSable Island

16 / 82

Official observations & forecasts

Location / station	Observed height	Observation time	Forecast height	Estimated first arrival
Christiansted	—	Not reported	—	Aug 22, 2026, 10:40 PM UTC
Virgin Gorda	—	Not reported	—	Aug 22, 2026, 10:40 PM UTC
DART 41421	—	Not reported	—	Aug 22, 2026, 10:40 PM UTC
Limetree Bay	—	Not reported	—	Aug 22, 2026, 10:45 PM UTC
San Juan coast	—	Not reported	—	Aug 22, 2026, 10:45 PM UTC
Tortola	—	Not reported	—	Aug 22, 2026, 10:45 PM UTC
Vieques Is. south	—	Not reported	—	Aug 22, 2026, 10:45 PM UTC
Roadtown	—	Not reported	—	Aug 22, 2026, 10:45 PM UTC
Vieques Is. north	—	Not reported	—	Aug 22, 2026, 10:45 PM UTC
San Juan TG	—	Not reported	—	Aug 22, 2026, 10:45 PM UTC
Lameshur Bay	—	Not reported	—	Aug 22, 2026, 10:45 PM UTC
Arecibo	—	Not reported	—	Aug 22, 2026, 10:50 PM UTC
Yabucoa	—	Not reported	—	Aug 22, 2026, 10:50 PM UTC
Aguadilla	—	Not reported	—	Aug 22, 2026, 10:55 PM UTC
DART 41420	—	Not reported	—	Aug 22, 2026, 11:00 PM UTC
Ponce	—	Not reported	—	Aug 22, 2026, 11:05 PM UTC
Penuelas	—	Not reported	—	Aug 22, 2026, 11:05 PM UTC
Culebra	—	Not reported	—	Aug 22, 2026, 11:05 PM UTC
Mona Island	—	Not reported	—	Aug 22, 2026, 11:05 PM UTC
Mayaguez	—	Not reported	—	Aug 22, 2026, 11:05 PM UTC
Fajardo	—	Not reported	—	Aug 22, 2026, 11:10 PM UTC
Charlotte Amalie	—	Not reported	—	Aug 22, 2026, 11:10 PM UTC
Magueyes Island	—	Not reported	—	Aug 22, 2026, 11:15 PM UTC
DART 44401	—	Not reported	—	Aug 22, 2026, 11:30 PM UTC
Samana Cay	—	Not reported	—	Aug 22, 2026, 11:40 PM UTC
Bermuda	—	Not reported	—	Aug 22, 2026, 11:45 PM UTC
Guantanamo Bay	—	Not reported	—	Aug 22, 2026, 11:55 PM UTC
DART 41424	—	Not reported	—	Aug 23, 2026, 12:15 AM UTC
DART 44402	—	Not reported	—	Aug 23, 2026, 12:50 AM UTC
Settlement Point	—	Not reported	—	Aug 23, 2026, 12:50 AM UTC
Palm Beach	—	Not reported	—	Aug 23, 2026, 1:10 AM UTC
Sable Island	—	Not reported	—	Aug 23, 2026, 1:15 AM UTC
Virginia Key	—	Not reported	—	Aug 23, 2026, 1:20 AM UTC
Jupiter Inlet	—	Not reported	—	Aug 23, 2026, 1:20 AM UTC
Cape Hatteras	—	Not reported	—	Aug 23, 2026, 1:25 AM UTC
Hatteras	—	Not reported	—	Aug 23, 2026, 1:25 AM UTC
Ocean Reef	—	Not reported	—	Aug 23, 2026, 1:30 AM UTC
Miami	—	Not reported	—	Aug 23, 2026, 1:35 AM UTC
Oregon Inlet	—	Not reported	—	Aug 23, 2026, 1:45 AM UTC
Cancun	—	Not reported	—	Aug 23, 2026, 1:50 AM UTC
Lockeport	—	Not reported	—	Aug 23, 2026, 2:05 AM UTC
Beaufort	—	Not reported	—	Aug 23, 2026, 2:10 AM UTC
Saint Pierre-Miquelon	—	Not reported	—	Aug 23, 2026, 2:10 AM UTC
Duck	—	Not reported	—	Aug 23, 2026, 2:15 AM UTC
Key West	—	Not reported	—	Aug 23, 2026, 2:15 AM UTC
Currituck	—	Not reported	—	Aug 23, 2026, 2:20 AM UTC
Atlantic Beach	—	Not reported	—	Aug 23, 2026, 2:20 AM UTC
DART 42429	—	Not reported	—	Aug 23, 2026, 2:25 AM UTC
Saint Lawrence	—	Not reported	—	Aug 23, 2026, 2:25 AM UTC
Channel-Port aux Basques	—	Not reported	—	Aug 23, 2026, 2:25 AM UTC
Vaca Key	—	Not reported	—	Aug 23, 2026, 2:25 AM UTC
Port Canaveral	—	Not reported	—	Aug 23, 2026, 2:30 AM UTC
Scatarie Island	—	Not reported	—	Aug 23, 2026, 2:30 AM UTC
Cape Ray	—	Not reported	—	Aug 23, 2026, 2:30 AM UTC
Ocean City	—	Not reported	—	Aug 23, 2026, 2:30 AM UTC
Montauk	—	Not reported	—	Aug 23, 2026, 2:35 AM UTC
Argentia	—	Not reported	—	Aug 23, 2026, 2:45 AM UTC
Chezzetcook Inlet	—	Not reported	—	Aug 23, 2026, 2:45 AM UTC
Charlesville	—	Not reported	—	Aug 23, 2026, 2:45 AM UTC
Halifax	—	Not reported	—	Aug 23, 2026, 2:45 AM UTC
Meat Cove	—	Not reported	—	Aug 23, 2026, 2:45 AM UTC
Daytona	—	Not reported	—	Aug 23, 2026, 2:50 AM UTC
Melbourne Beach	—	Not reported	—	Aug 23, 2026, 2:50 AM UTC
Watch Hill	—	Not reported	—	Aug 23, 2026, 2:50 AM UTC
Fire Island Light	—	Not reported	—	Aug 23, 2026, 2:50 AM UTC
Wrightsville Beach	—	Not reported	—	Aug 23, 2026, 2:50 AM UTC
Surf City	—	Not reported	—	Aug 23, 2026, 2:50 AM UTC
Rudee Inlet	—	Not reported	—	Aug 23, 2026, 2:55 AM UTC
Virginia Beach	—	Not reported	—	Aug 23, 2026, 2:55 AM UTC
Atlantic City	—	Not reported	—	Aug 23, 2026, 2:55 AM UTC
Yarmouth	—	Not reported	—	Aug 23, 2026, 2:55 AM UTC
Cape Henlopen	—	Not reported	—	Aug 23, 2026, 2:55 AM UTC
La Manche	—	Not reported	—	Aug 23, 2026, 2:55 AM UTC
South Santee River	—	Not reported	—	Aug 23, 2026, 3:00 AM UTC
Woods Hole	—	Not reported	—	Aug 23, 2026, 3:00 AM UTC
Newport	—	Not reported	—	Aug 23, 2026, 3:00 AM UTC
North Sydney	—	Not reported	—	Aug 23, 2026, 3:00 AM UTC
Lewes	—	Not reported	—	Aug 23, 2026, 3:00 AM UTC
Cutler NAS	—	Not reported	—	Aug 23, 2026, 3:05 AM UTC
Nanortalik	—	Not reported	—	Aug 23, 2026, 3:05 AM UTC
Nantucket	—	Not reported	—	Aug 23, 2026, 3:10 AM UTC
New London	—	Not reported	—	Aug 23, 2026, 3:10 AM UTC
Oyster Landing	—	Not reported	—	Aug 23, 2026, 3:10 AM UTC
Sandy Hook	—	Not reported	—	Aug 23, 2026, 3:10 AM UTC
Pilots Station E	—	Not reported	—	Aug 23, 2026, 3:10 AM UTC
Chesapeake Bridge	—	Not reported	—	Aug 23, 2026, 3:15 AM UTC
Saint Johns	—	Not reported	—	Aug 23, 2026, 3:15 AM UTC
Flagler Beach	—	Not reported	—	Aug 23, 2026, 3:15 AM UTC
Brandywine Shoal Light	—	Not reported	—	Aug 23, 2026, 3:15 AM UTC
Grand Manan Island	—	Not reported	—	Aug 23, 2026, 3:20 AM UTC
Jacksonville Beach	—	Not reported	—	Aug 23, 2026, 3:20 AM UTC
Bonavista	—	Not reported	—	Aug 23, 2026, 3:20 AM UTC
Bar Harbor	—	Not reported	—	Aug 23, 2026, 3:20 AM UTC
Myrtle Beach	—	Not reported	—	Aug 23, 2026, 3:25 AM UTC
Cape May	—	Not reported	—	Aug 23, 2026, 3:25 AM UTC
The US/Canada Border	—	Not reported	—	Aug 23, 2026, 3:25 AM UTC
Cape Makkovik	—	Not reported	—	Aug 23, 2026, 3:30 AM UTC
Battle Harbour	—	Not reported	—	Aug 23, 2026, 3:30 AM UTC
Springmaid Pier	—	Not reported	—	Aug 23, 2026, 3:30 AM UTC
Quonset Point	—	Not reported	—	Aug 23, 2026, 3:30 AM UTC
Kiptopeke	—	Not reported	—	Aug 23, 2026, 3:35 AM UTC
Stonington	—	Not reported	—	Aug 23, 2026, 3:35 AM UTC
Fort Point	—	Not reported	—	Aug 23, 2026, 3:35 AM UTC
Money Point	—	Not reported	—	Aug 23, 2026, 3:40 AM UTC
Wells	—	Not reported	—	Aug 23, 2026, 3:40 AM UTC
Fernandina Beach	—	Not reported	—	Aug 23, 2026, 3:40 AM UTC
Mayport	—	Not reported	—	Aug 23, 2026, 3:40 AM UTC
Charleston	—	Not reported	—	Aug 23, 2026, 3:40 AM UTC
Merrimack River	—	Not reported	—	Aug 23, 2026, 3:40 AM UTC
Holton Harbour	—	Not reported	—	Aug 23, 2026, 3:45 AM UTC
Savannah	—	Not reported	—	Aug 23, 2026, 3:45 AM UTC
Saint John	—	Not reported	—	Aug 23, 2026, 3:45 AM UTC
Flamingo	—	Not reported	—	Aug 23, 2026, 3:50 AM UTC
Windmill Point	—	Not reported	—	Aug 23, 2026, 3:50 AM UTC
Altamaha Sound	—	Not reported	—	Aug 23, 2026, 3:55 AM UTC
Portland	—	Not reported	—	Aug 23, 2026, 3:55 AM UTC
Grand Isle	—	Not reported	—	Aug 23, 2026, 4:00 AM UTC
Strait of Belle Isle	—	Not reported	—	Aug 23, 2026, 4:05 AM UTC
Saint Simons Island	—	Not reported	—	Aug 23, 2026, 4:05 AM UTC
Manhattan	—	Not reported	—	Aug 23, 2026, 4:05 AM UTC
New Point Comfort	—	Not reported	—	Aug 23, 2026, 4:05 AM UTC
Bergen Point	—	Not reported	—	Aug 23, 2026, 4:10 AM UTC
Destin	—	Not reported	—	Aug 23, 2026, 4:10 AM UTC
New Haven	—	Not reported	—	Aug 23, 2026, 4:10 AM UTC
Ship John Shoal	—	Not reported	—	Aug 23, 2026, 4:15 AM UTC
Conimicut Light	—	Not reported	—	Aug 23, 2026, 4:15 AM UTC
Boston	—	Not reported	—	Aug 23, 2026, 4:20 AM UTC
Port Fourchon	—	Not reported	—	Aug 23, 2026, 4:20 AM UTC
Harrington Harbour	—	Not reported	—	Aug 23, 2026, 4:20 AM UTC
Ammassalik	—	Not reported	—	Aug 23, 2026, 4:20 AM UTC
Fall River	—	Not reported	—	Aug 23, 2026, 4:20 AM UTC
Alvarado	—	Not reported	—	Aug 23, 2026, 4:25 AM UTC
Pointe Saint-Pierre	—	Not reported	—	Aug 23, 2026, 4:25 AM UTC
Cape Chidley	—	Not reported	—	Aug 23, 2026, 4:25 AM UTC
Panama City	—	Not reported	—	Aug 23, 2026, 4:25 AM UTC
Bridgeport	—	Not reported	—	Aug 23, 2026, 4:30 AM UTC
Panama City Beach	—	Not reported	—	Aug 23, 2026, 4:30 AM UTC
Nuuk	—	Not reported	—	Aug 23, 2026, 4:35 AM UTC
Pensacola	—	Not reported	—	Aug 23, 2026, 4:35 AM UTC
Tampico	—	Not reported	—	Aug 23, 2026, 4:40 AM UTC
Brownsville	—	Not reported	—	Aug 23, 2026, 4:40 AM UTC
Dauphin Island	—	Not reported	—	Aug 23, 2026, 4:40 AM UTC
Yorktown	—	Not reported	—	Aug 23, 2026, 4:40 AM UTC
Lewisseta	—	Not reported	—	Aug 23, 2026, 4:45 AM UTC
Hebron	—	Not reported	—	Aug 23, 2026, 4:50 AM UTC
Lanse-au-Clair	—	Not reported	—	Aug 23, 2026, 4:50 AM UTC
Providence	—	Not reported	—	Aug 23, 2026, 4:50 AM UTC
Apalachicola	—	Not reported	—	Aug 23, 2026, 4:50 AM UTC
Port Isabel	—	Not reported	—	Aug 23, 2026, 4:55 AM UTC
Nain	—	Not reported	—	Aug 23, 2026, 5:00 AM UTC
Brevoort Harbour	—	Not reported	—	Aug 23, 2026, 5:05 AM UTC
Corpus Christi	—	Not reported	—	Aug 23, 2026, 5:05 AM UTC
Dock E	—	Not reported	—	Aug 23, 2026, 5:05 AM UTC
Cape Dyer	—	Not reported	—	Aug 23, 2026, 5:05 AM UTC
The Miss./Alabama Border	—	Not reported	—	Aug 23, 2026, 5:05 AM UTC
Progreso	—	Not reported	—	Aug 23, 2026, 5:10 AM UTC
Pascagoula	—	Not reported	—	Aug 23, 2026, 5:10 AM UTC
Bishops Head	—	Not reported	—	Aug 23, 2026, 5:15 AM UTC
Baffin Bay	—	Not reported	—	Aug 23, 2026, 5:15 AM UTC
Clearwater Beach	—	Not reported	—	Aug 23, 2026, 5:15 AM UTC
Wood Islands	—	Not reported	—	Aug 23, 2026, 5:20 AM UTC
Kings Point	—	Not reported	—	Aug 23, 2026, 5:25 AM UTC
Sept-Iles	—	Not reported	—	Aug 23, 2026, 5:25 AM UTC
US Coast Guard	—	Not reported	—	Aug 23, 2026, 5:35 AM UTC
Rock Port	—	Not reported	—	Aug 23, 2026, 5:40 AM UTC
Port OConnor	—	Not reported	—	Aug 23, 2026, 5:40 AM UTC
Waveland	—	Not reported	—	Aug 23, 2026, 5:40 AM UTC
Freeport	—	Not reported	—	Aug 23, 2026, 5:45 AM UTC
Escuminac	—	Not reported	—	Aug 23, 2026, 6:00 AM UTC
Naples	—	Not reported	—	Aug 23, 2026, 6:05 AM UTC
Scorsby Sund	—	Not reported	—	Aug 23, 2026, 6:05 AM UTC
Charlottetown	—	Not reported	—	Aug 23, 2026, 6:05 AM UTC
Freshwater Canal	—	Not reported	—	Aug 23, 2026, 6:05 AM UTC
Belledune	—	Not reported	—	Aug 23, 2026, 6:10 AM UTC
Ittoqqortoormiit	—	Not reported	—	Aug 23, 2026, 6:10 AM UTC
Champoton	—	Not reported	—	Aug 23, 2026, 6:15 AM UTC
Port Manatee	—	Not reported	—	Aug 23, 2026, 6:15 AM UTC
Bonita Beach	—	Not reported	—	Aug 23, 2026, 6:15 AM UTC
Galveston Pleasure Pier	—	Not reported	—	Aug 23, 2026, 6:20 AM UTC
Biloxi	—	Not reported	—	Aug 23, 2026, 6:20 AM UTC
Galveston	—	Not reported	—	Aug 23, 2026, 6:20 AM UTC
Saint Petersburg	—	Not reported	—	Aug 23, 2026, 6:20 AM UTC
Fort Myers	—	Not reported	—	Aug 23, 2026, 6:20 AM UTC
Eugene Island	—	Not reported	—	Aug 23, 2026, 6:25 AM UTC
Galveston Bay Entrance	—	Not reported	—	Aug 23, 2026, 6:25 AM UTC
Suwannee River	—	Not reported	—	Aug 23, 2026, 6:25 AM UTC
Amerada Pass	—	Not reported	—	Aug 23, 2026, 6:35 AM UTC
Morgan City	—	Not reported	—	Aug 23, 2026, 6:40 AM UTC
Clyde River	—	Not reported	—	Aug 23, 2026, 6:40 AM UTC
Shell Beach	—	Not reported	—	Aug 23, 2026, 6:40 AM UTC
Annapolis	—	Not reported	—	Aug 23, 2026, 6:45 AM UTC
Lake Charles	—	Not reported	—	Aug 23, 2026, 6:55 AM UTC
Port Tampa	—	Not reported	—	Aug 23, 2026, 6:55 AM UTC
Cedar Key	—	Not reported	—	Aug 23, 2026, 7:00 AM UTC
High Island	—	Not reported	—	Aug 23, 2026, 7:05 AM UTC
Cameron	—	Not reported	—	Aug 23, 2026, 7:05 AM UTC
Sabine Pass	—	Not reported	—	Aug 23, 2026, 7:05 AM UTC
Cypremort Point	—	Not reported	—	Aug 23, 2026, 7:05 AM UTC
Shediac	—	Not reported	—	Aug 23, 2026, 7:20 AM UTC
Thule	—	Not reported	—	Aug 23, 2026, 7:45 AM UTC
Dundas Harbour	—	Not reported	—	Aug 23, 2026, 7:55 AM UTC
Eagle Point	—	Not reported	—	Aug 23, 2026, 8:20 AM UTC
Morgans Point	—	Not reported	—	Aug 23, 2026, 8:50 AM UTC

NOAA NDBC · NOAA CO-OPS · IOC/UNESCO

Monitoring stations

1857

NOAA DART measures the water column above the seabed; coastal gauges show levels relative to mean sea level. Tides and other processes affect these values. A fluctuation or DART event mode alone does not confirm a tsunami. Gaps are not interpolated. Observations may be delayed or preliminary. The global IOC/UNESCO network aggregates national gauge networks; availability, sampling interval and reference level differ per operator.

Search stationsNetworkStation countrySelect a station

Select a station

Location / station	Latest observation	Official source
120 NM NW of Valparaiso	Sep 24, 2026, 12:00 PM UTC	NOAA NDBC
180 NM West of Caldera, Chile	Sep 24, 2026, 12:00 PM UTC	NOAA NDBC
180 NM West of Iquique, Chile	Sep 24, 2026, 12:00 PM UTC	NOAA NDBC
91NM West of Antofagasta, Chile	Sep 24, 2026, 12:00 PM UTC	NOAA NDBC
A2	Sep 24, 2026, 6:05 PM UTC	IOC Sea Level Monitoring · Belgium
ATTU - 175 NM South of Attu, AK	Sep 24, 2026, 6:00 PM UTC	NOAA NDBC
Aarhus	Sep 24, 2026, 6:10 PM UTC	IOC Sea Level Monitoring · Denmark
Abashiri	Sep 24, 2026, 6:09 PM UTC	IOC Sea Level Monitoring · Japan
Aburatsu	Sep 24, 2026, 6:09 PM UTC	IOC Sea Level Monitoring · Japan
Acoruna	Sep 24, 2026, 6:12 PM UTC	IOC Sea Level Monitoring · Spain
Adak Island	Sep 24, 2026, 6:12 PM UTC	NOAA CO-OPS
Adak_AK	Sep 24, 2026, 6:12 PM UTC	IOC Sea Level Monitoring · USA
Adak_AK	Sep 24, 2026, 6:12 PM UTC	IOC Sea Level Monitoring · USA
Aguadilla (Crash Boat)	Sep 24, 2026, 6:09 PM UTC	IOC Sea Level Monitoring · Puerto Rico; U.S.A.
Ajaccio	Sep 24, 2026, 6:15 PM UTC	IOC Sea Level Monitoring · France
Ajaccio2	Sep 24, 2026, 6:11 PM UTC	IOC Sea Level Monitoring · France
Alameda	Sep 24, 2026, 6:18 PM UTC	NOAA CO-OPS
Alameda_CA	Sep 24, 2026, 6:09 PM UTC	IOC Sea Level Monitoring · USA
Alcudia	Sep 24, 2026, 6:12 PM UTC	IOC Sea Level Monitoring · Spain
Alexandria	Sep 24, 2026, 6:12 PM UTC	IOC Sea Level Monitoring · Egypt

NOAA / NCEI

Historical tsunamis

822

The archive shows confirmed tsunamis since 1900 from NOAA/NCEI. Maximum documented water heights combine different observation types and locations; they describe neither a uniform open-ocean wave height nor current danger. Historical coverage varies by place and time.

Date	Location / station	Maximum documented water height	Official source
Not available	JapanRYUKYU ISLANDS	0.30 m	NOAA ↗
Not available	JapanSAGAMI BAY	13.00 m	NOAA ↗
Not available	JapanKASHIMA, JAPAN	0.40 m	NOAA ↗
Not available	RussiaKAMCHATKA	20.00 m	NOAA ↗
Not available	RussiaKAMCHATKA	8.00 m	NOAA ↗
Not available	ChileNORTHERN CHILE	5.50 m	NOAA ↗
Not available	IndonesiaJAVA	0.10 m	NOAA ↗
Not available	United StatesALIKA, HAWAII	4.30 m	NOAA ↗
Not available	ItalySTROMBOLI ISLAND	0.75 m	NOAA ↗
Not available	TongaTONGA ISLANDS	2.50 m	NOAA ↗
Not available	ChileNORTHERN CHILE	5.00 m	NOAA ↗
Not available	RussiaS. KURIL ISLANDS	0.50 m	NOAA ↗

Last successful check: Sep 20, 2026, 2:41 AM UTC

Understanding tsunami data

What do the alert levels mean?

Warning: dangerous inundation is possible. Advisory: dangerous currents and waves are possible. Watch: a potential threat is being assessed. National authorities interpret international threat messages. An information bulletin is not an active warning. Expired validity is not an official cancellation.

Which areas are covered?

Warning bulletins come from the NOAA centres NTWC, PTWC and NWS, from the European Commission's GDACS system, from the Japan Meteorological Agency and from Indonesia's BMKG. Measurements additionally come from the global sea level network of IOC/UNESCO. National warning systems in Australia, India, Chile and other states publish no openly accessible data interface and are therefore missing. The absence of a bulletin on this page is therefore not a worldwide all-clear.

How are the data processed?

QuakeMap24 processes structured authority bulletins, groups related updates and links matching earthquakes. Tests are excluded. Successful checks and bulletin times are shown separately. Forecasts come exclusively from published NOAA products; no arrival times or inundation forecasts are calculated here.