A shallow and significant M5.1 earthquake struck in the North Pacific Ocean 196 kilometer from Dededo Village, Guam in the evening of Thursday September 10th, 2026.
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Earthquake Summary
This earthquake hit under water in the North Pacific Ocean, 163 kilometers (101 mi) off the coast of Guam, 196 kilometer southwest of Dededo Village in Dededo. The center of this earthquake had a very shallow depth of 10 km. Shallow earthquakes usually have a larger impact than earthquakes deep in the earth.
| Date and Time: | Sep 10, 2026 23:28 (Guam Time) - Sep 10, 2026 13:28 Universal Time. |
|---|---|
| Location: | 196 km SW of Dededo Village, Dededo, Guam. Coordinates 12°1'35"N 143°52'26"E. |
| Map: |  Map of area around epicenter. Click to open in Google Maps. |
| Magnitude: | MAG 5.1 Detected by 10 stations. Maximum Error Range ±0.098 . |
| Depth: | 10 km (6 mi) A very shallow depth. |
| Tsunami Risk: | Low tsunami risk Earthquakes under MAG-6.5 do not usually cause tsunami's. Always stay cautious - More info here. |
Nearby towns and cities
This earthquake may have been felt in Guam . Located 187 kilometer (116 mi) southwest of the epicenter of this earthquake, Hagåtña (Hagatna, Guam) is the nearest significant population center.
An overview of nearby towns and cities is available in the overview below.
Overview of nearby places
| Distance | Place |
|---|---|
| 187 km (116 mi) NE from epicenter |
Mangilao Village Mangilao, Guam. |
| 187 km (116 mi) NE from epicenter |
Hagåtña Hagatna, Guam. |
| 187 km (116 mi) NE from epicenter |
Guam Government House Hagatna, Guam. |
| 190 km (118 mi) NE from epicenter |
Tamuning Tamuning, Guam. |
| 190 km (118 mi) NE from epicenter |
Tamuning-Tumon-Harmon Village Tamuning, Guam. |
| 196 km (122 mi) NE from epicenter |
Dededo Village Dededo, Guam. |
| 201 km (125 mi) NE from epicenter |
Yigo Village Yigo, Guam. |
Risk of aftershocks?
We monitor for foreshocks or aftershocks that have a magnitude of 2.5+ and occur within 100km (62 mi) of the epicenter of this earthquake. So far no such earthquakes have been detected.
Earthquakes can create aftershocks. These are generally at least 1 magnitude lower than any main shock, and as time passes the chance and strength of aftershocks decreases.
In only six percent of cases, significant earthquakes are followed by a larger main shock, making the current earthquake a foreshock. While the chance of this happening is not so large, it is adviced to maintain cautiousness in the hours and days following a major 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 February 12th, 2026, when a 5.4 magnitude earthquake hit 229 km (142 mi) further north-east. An even stronger magnitude 6 earthquake struck on November 4th, 2025.
In total, 63 earthquakes with a magnitude of 5.1 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 2 months.
Low tsunami risk
Based on early data it appears this earthquake was not strong enough (lower than MAG-6.5) to be likely to cause destructive tsunami's. However this earthquake appeared to have hit at a shallow depth under sea, so 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 5.1. Earthquakes of this strength are unlikely to trigger a tsunami. |
This earthquake occurred at a depth of of 10 km (6 mi). Earthquakes this shallow could trigger a tsunami. |
Sources
Last updated 11/09/26 09:58 (). 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.
- US Geographic Society (USGS): Earthquake us7000tgb6
- European-Mediterranean Seismological Centre (EMSC): Earthquake 20260910_0000192
- Geonames.org: World Cities Database
- Google Maps: Static API
- Earthquakelist.org: Historic Earthquakes Database
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