Shallow M5.7 AFTERSHOCK hit in the Philippine Sea near Naze (Japan) on Sunday Morning.

Written by Earthquakelist.org on March 8th, 2025. Last updated March 11th, 2025.

In the Philippine Sea 89 kilometer from Naze, Japan, a shallow and significant Magnitude 5.7 aftershock occurred in the morning of Sunday March 9th, 2025. Around 120 thousand people have been exposed to shaking.

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Earthquake Summary

This earthquake hit under water in the Philippine Sea, 71 kilometers (44 mi) off the coast of Japan, 89 kilometer east-northeast of Naze in Kagoshima. The center of this earthquake had a quite shallow depth of 26 km. Shallow earthquakes usually have a larger impact than earthquakes deep in the earth.

Date and Time:	Mar 9, 2025 08:42 (Tokyo Time) - Mar 8, 2025 23:42 Universal Time.
Location:	89 km ENE of Naze, Kagoshima, Japan. Coordinates 28°44'22"N 130°17'24"E.
Map:	Map of area around epicenter. Click to open in Google Maps.
Magnitude:	MAG 5.7 Detected by 26 stations. Maximum Error Range ±0.061 .
Depth:	26 km (16 mi) A quite 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 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 120 thousand people exposed to shaking

This earthquake may have been felt by around 120 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.

The highest earthquake impact level for this earthquake is IV, which corresponds with light shaking and likely no damage. Roughly 15,770 people are expected to be exposed to this level. The majority of people (roughly 100 thousand) live in an area exposed to level III, where weak shaking and probably no damage is expected. All exposure to shaking was within the borders of Japan .

Nearby towns and cities

This earthquake may have been felt in Japan . Located 89 kilometer (55 mi) east-northeast of the epicenter of this earthquake, Naze (Kagoshima, Japan) is the nearest significant population center. Naze experienced an earthquake intensity (MMI Scale) of roughly III. That level implies weak shaking and 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

Earthquake Intensity Map

The graph below overlays a map of the region around the epicenter with earthquake intensity data provided by the US Geographic Survey. The highest intensity level detected 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

Shaking reported by 1 person

People that feel an earthquake may report their experience to the US Geographic Survey. Currently, 1 person has reported shaking in one place in Japan.We keep updating this article as more ground reports become available. You may report that you felt this earthquake here.

Places with most reports:

• Kagoshima, Kagoshima, Japan: 1 person.

This is likely an aftershock

This earthquake is likely an aftershock of the MAG-5.7 earthquake that struck 5 hrs earlier. That main earthquake hit 7 km (4 mi) southwest of the epicenter of this MAG-5.7 aftershock.

Overview of foreshocks and aftershocks

More earthquakes coming?

The risk of aftershocks decreases rapidly over time. Usually, aftershocks are at least one order of magnitude lower than a main shock.

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.

Earthquakes like this are common in the region

Earthquakes of this strength occur quite regularly in the region. In total, 10 earthquakes with a magnitude of 5.7 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

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

Sources

Last updated 11/03/25 23:08 (). As more information on this earthquake becomes available this article will be updated. This article is automatically composed based on data originating from multiple sources.

1. US Geographic Society (USGS): Earthquake us6000pxpv
2. European-Mediterranean Seismological Centre (EMSC): Earthquake 20250308_0000267
3. Geonames.org: World Cities Database
4. Google Maps: Static API
5. Earthquakelist.org: Historic Earthquakes Database

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