On Sunday Evening a Shallow M5.3 Earthquake struck in the Gulf Of Alaska 151mi from Anchorage (The United States).

Written by Earthquakelist.org on June 29th, 2026. Last updated June 30th, 2026.

A shallow and significant Magnitude 5.3 earthquake struck in the Gulf Of Alaska 151 miles from Anchorage, The United States in the evening of Sunday June 28th, 2026. Roughly 40 thousand people may have felt this earthquake.

Earthquake Summary

This earthquake hit under water in the Gulf Of Alaska, 16 miles (27 km) off the coast of The United States, 151 miles south-east of Anchorage in Alaska. The center of this earthquake had a very shallow depth of 8 km. Shallow earthquakes usually have a larger impact than earthquakes deep in the earth.

Date and Time:	Jun 28, 2026 07:32PM (Anchorage Time) - Jun 29, 2026 03:32 Universal Time.
Location:	151 mi SE of Anchorage, Alaska, The United States. Coordinates 60°14'13"N 145°54'36"W.
Map:	Map of area around epicenter. Click to open in Google Maps.
Magnitude:	MAG 5.3 Detected by 40 stations. Maximum Error Range ±0.038 .
Depth:	8 mi (13 km) A very shallow depth.
Max. Intensity:	V Moderate On the Modified Mercalli Scale.
Tsunami Risk:	Low tsunami risk Earthquakes under MAG-6.5 do not usually 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 95% likelyhood of between 0 and 1 fatalities.

The USGS classifies the economic impact of this earthquake at level GREEN (low). They expect an 90% likelyhood of between 0 and 1 million US Dollars in economic damage and impact.

Roughly 40 thousand people exposed to shaking

This earthquake may have been felt by around 40 thousand people. That is the expected population size of the area exposed to a level of shaking of II or higher on the Modified Mercalli scale according to the USGS.

Light shaking and likely no damage may have been experienced by an estimated 150 people. At IV, it is the highest MMI level this earthquake has caused. Intensity level II was experienced by the majority of people (around 40 thousand). In their region, very weak shaking and no damage can be expected.

People	MMI Level	Shaking	Damage
0	I	Not noticable	None
37,270	II	Very weak	None
6,550	III	Weak	Probably none
150	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

This earthquake may have been felt in The United States . Eagle River in Alaska, The United States is the nearest significant place from the epicenter. The earthquake occurred 144 miles (232 km) south-east of Eagle River. The intensity of shaking and damage in Eagle River is estimated to be around level III on the Modified Mercalli Intensity scale (weak shaking, probably no damage).

Overview of nearby places

Cities and Towns around the epicenter of this earthquake.
Distance	Place	Intensity (MMI)
144 mi (232 km) NW from epicenter	Eagle River Alaska, The United States.	III Weak
151 mi (243 km) NW from epicenter	Anchorage Alaska, The United States.	III Weak

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.

Aftershocks detected

This main shock was followed by 1 smaller aftershock. Just 5 mins after this main shock, an earthquake measuring MAG-3 was detected 2.9 mi (5 km) south of this earthquake.

Overview of foreshocks and aftershocks

Detected MAG2.5+ earthquakes within within 100km (62 mi), that occurred in the three days before and after the main shock.
Classification	Magnitude	When	Where
Main Shock This Earthquake	M 5.3	Jun 28, 2026 07:32PM (Anchorage Time)	-
Aftershock	M 3.0	5 mins later Jun 28, 2026 07:37PM (Anchorage Time)	2.9 mi (5 km) S from Main Shock.

More earthquakes coming?

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 are common in the region

Earthquakes of this strength occur quite regularly in the region. This is the strongest earthquake to hit since October 30th, 2025, when a 5.4 magnitude earthquake hit 155 mi (250 km) further west. An even stronger magnitude 7.1 earthquake struck on November 30th, 2018.

In total, 7 earthquakes with a magnitude of 5.3 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 year.

Low tsunami risk

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.

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 5.3. Earthquakes of this strength are unlikely to trigger a tsunami.	This earthquake occurred at a depth of of 8 mi (13 km). Earthquakes this shallow could trigger a tsunami.

Sources

Last updated 30/06/26 18:58 (). 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.