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A significant MAG-5.4 earthquake struck in the Philippine Sea 49 kilometer from Dededo Village, Guam in the evening of Thursday February 12th, 2026. Around 230 thousand people have been exposed to shaking. Another country near the epicenter is Northern Mariana Islands.

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Earthquake Summary

This earthquake hit under water in the Philippine Sea, 35 kilometers (22 mi) off the coast of Guam, 49 kilometer north of Dededo Village in Dededo. The center of this earthquake had an intermediate depth of 149 km.

Date and Time: Feb 12, 2026 20:30 (Guam Time)
- Feb 12, 2026 10:30 Universal Time.
Location: 49 km north of Dededo Village, Dededo, Guam.
Coordinates 13°57'38"N 144°47'60"E.
Map: Map of area around epicenter.
Map of area around epicenter. Click to open in Google Maps.
Magnitude: MAG 5.4
Detected by 7 stations. Maximum Error Range ±0.083 .
Depth: 149 km (93 mi)
An intermediate depth.
Max. Intensity:
IV
Light

On the Modified Mercalli Scale.
Tsunami Risk: Tsunami very unlikely
Earthquakes under MAG-6.5 at depths deeper than 100km are very unlikely to cause tsunami's.
Always stay cautious - More info here.

Minimal impact predicted

Based on scientific estimates by the US Geographic Survey (USGS), the risk of high fatalities for this earthquake is classified at level GREEN (low). They expect an 65% likelyhood of between 0 and 1 fatalities, and a 96% chance that the number of fatalities falls no higher than 10.

The USGS classifies the economic impact of this earthquake at level GREEN (low). They expect an 65% likelyhood of between 0 and 1 million US Dollars in economic damage and impact, and a 96% chance that the economic impact of this earthquake falls no higher than 10 million USD.

Roughly 230 thousand people exposed to shaking

An estimated 230 thousand have been exposed to shaking (An MMI or Modified Mercalli Intensity level II or higher) as a result of this earthquake according scientific estimates published by the USGS.

An estimated 209,800 people were exposed to level III. At this level, weak shaking and probably no damage can be expected.

People in 2 countries have been exposed to shaking. In Guam , around 180 thousand people, with impact levels up to III (weak shaking, probably no damage). In Northern Mariana Islands , around 50 thousand people.

People MMI Level Shaking Damage
0
I
Not noticable None
17,860
II
Very weak None
209,800
III
Weak Probably none
0
IV
Light Likely none
0
V
Moderate Very light
0
VI
Strong Light
0
VII
Very Strong Moderate
0
VIII
Severe Moderate to heavy
0
IX
Violent Heavy
0
X
Extreme Very heavy

Nearby towns and cities

Guam and Northern Mariana Islands are both located within 300km distance of the epicenter of the earthquake.

The closest significant population center near the earthquake is Yigo Village in Yigo, Guam. Yigo Village is located 48 kilometer (30 mi) north-northwest of the epicenter. The intensity of shaking and damage in Yigo Village is estimated to be around level III on the Modified Mercalli Intensity scale (weak shaking, probably no damage).

The table below provides an overview of all places in proximity of today's earthquake. Where available, the estimated intensity on the Modified Mercalli Intensity Scale in each place is included. Places where this information is omitted likely experienced little impact.

Overview of nearby places

Distance Place Intensity (MMI)
48 km (30 mi)
SSE from epicenter
Yigo Village

Yigo, Guam.
III
Weak
49 km (30 mi)
S from epicenter
Dededo Village

Dededo, Guam.
III
Weak
53 km (33 mi)
S from epicenter
Tamuning-Tumon-Harmon Village

Tamuning, Guam.
III
Weak
53 km (33 mi)
S from epicenter
Tamuning

Tamuning, Guam.
III
Weak
54 km (34 mi)
S from epicenter
Hagåtña

Hagatna, Guam.
III
Weak
55 km (34 mi)
S from epicenter
Guam Government House

Hagatna, Guam.
III
Weak
57 km (35 mi)
S from epicenter
Mangilao Village

Mangilao, Guam.
III
Weak
173 km (107 mi)
NE from epicenter
Saipan

Saipan, Northern Mariana Islands.
II
Weak
Cities and Towns around the epicenter of this earthquake.

Earthquake Intensity Map

The intensity in shaking and damage by this earthquake is illustrated through the map below. The highest intensity measured for this earthquake is IV.

I Not felt
II Weak
III Weak
IV Light
V Moderate
VI Strong
VII Very Strong
VIII Severe
IX Violent
X Extreme
Earthquake Intensity Map based on Shakemap Data provided by USGS.

Risk of aftershocks?

We have not yet detected any foreshocks or aftershocks (MAG-2.5 or higher) within 100km (62 mi) of this earthquake.

Aftershocks are usually at least 1 order of magnitude less strong than main shocks. The more time passes, the smaller the chance and likely strength of any potential aftershocks.

It's always adviced to be cautious of the risk of a larger shock following any significant earthquake, however this risk is fairly small. There is a roughly 94 percent change that no larger main shock will follow in the days following this earthquake.

Read: How to Stay Safe during an Earthquake (cdc.gov).

Earthquakes like this happen often in the region

Earthquakes of this strength are very common in the region. This is the strongest earthquake to hit since December 24th, 2025, when a 5.7 magnitude earthquake hit 286 km (178 mi) further south-southwest. An even stronger magnitude 6 earthquake struck on November 4th, 2025.

In total, 42 earthquakes with a magnitude of 5.4 or higher have been registered within 300km (186 mi) of this epicenter in the past 10 years. This comes down to an average of once every 3 months.

Tsunami very unlikely

DISCLAIMER: We strongly suggest to closely monitor advice from local authorities with regards to tsunami risks. Our analysis is based on automatically collected data from external sources, and these might contain mistakes. In addition, earthquakes can cause landslides that may lead to a tsunami, or be a followed by another, potentially stonger, earthquake.

For a serious tsunami to occur, earthquakes usually need to have a magnitude of at least 6.5 and occur at a shallow depth of maximum 100km. Neither are the case with this earthquake. However always stay cautious and monitor advice from local authorities.

Tsunami Risk Factors

Factor Under Sea? MAG-6.5 or stronger? Shallow depth?
Explanation Almost all tsunami's are caused by earthquakes with their epicenter under sea or very near the sea. However stay cautious in coastal areas as earthquakes on land may cause landslides into sea, potentially still causing a local tsunami. Under MAG 6.5: Very unlikely to cause a tsunami.
MAG 6.5 to 7.5: Destructive tsunami's do occur, but are uncommon. Likely to observe small sea level changes.
MAG 7.6+: Earthquakes with these magnitudes might produce destructive tsunami's.
Most destructive tsunami's are caused by shallow earthquakes with a depth between 0 and 100km under the surface of the earth. Deeper tsunami's are unlikely to displace to ocean floor.
This Earthquake This earthquake appears to have struck under the sea. Not this earthquake.
This earthquake had a magnitude of 5.4. Earthquakes of this strength are unlikely to trigger a tsunami.
Not this earthquake.
This earthquake occurred at a depth of 149 km (93 mi). Earthquakes this deep in the earth are unlikely to trigger a tsunami.

Sources

Last updated 12/02/26 13:08 (). This article is automatically generated based on available data. We keep checking multiple sources for additional information. This article gets updated as new details on this earthquake become available.

  1. US Geographic Society (USGS): Earthquake us6000s8gh
  2. European-Mediterranean Seismological Centre (EMSC): Earthquake 20260212_0000115
  3. Geonames.org: World Cities Database
  4. Google Maps: Static API
  5. Earthquakelist.org: Historic Earthquakes Database

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