Shallow M5.1 AFTERSHOCK hit in the East China Sea 107km from Naze (Japan) on Thursday Afternoon.

Written by Earthquakelist.org on July 3rd, 2025. Last updated July 19th, 2025.

In the afternoon of Thursday July 3rd, 2025, a shallow and significant Magnitude 5.1 aftershock hit in the East China Sea 107 kilometer from Naze, Japan.

Felt the earthquake? Share this article:

Earthquake Summary

This earthquake hit under water in the East China Sea, 92 kilometers (57 mi) off the coast of Japan, 107 kilometer north of Naze in Kagoshima. 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:	Jul 3, 2025 15:18 (Tokyo Time) - Jul 3, 2025 06:18 Universal Time.
Location:	107 km north of Naze, Kagoshima, Japan. Coordinates 29°19'5"N 129°37'47"E.
Map:	Map of area around epicenter. Click to open in Google Maps.
Magnitude:	MAG 5.1 Detected by 331 stations. Maximum Error Range ±0.031 .
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 Japan . The closest significant population center near the earthquake is Naze in Kagoshima, Japan. Naze is located 107 kilometer (66 mi) north of the epicenter.

A complete list of nearby places is included below.

Overview of nearby places

This is likely an aftershock

This earthquake is likely an aftershock of the MAG-5.6 earthquake that struck 24 hrs earlier. That main earthquake hit 38 km (24 mi) west-southwest of the epicenter of this MAG-5.1 aftershock.

Overview of foreshocks and aftershocks

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.

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 happen often in the region

Earthquakes of this strength are very common in the region. In total, 70 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

Sources

Last updated 19/07/25 08:08 (). This article contains currently available information about the earthquake and is automatically composed. We continue to update this article up to a few days after the earthquake occurred.

1. US Geographic Society (USGS): Earthquake us7000qadj
2. European-Mediterranean Seismological Centre (EMSC): Earthquake 20250703_0000078
3. Geonames.org: World Cities Database
4. Google Maps: Static API
5. Earthquakelist.org: Historic Earthquakes Database

Share this article: