Significant M5.4 Earthquake hit in the North Pacific Ocean 263km from Yokohama (Japan) on Tuesday Afternoon.

Written by Earthquakelist.org on June 25th, 2024. Last updated June 29th, 2024.

In the North Pacific Ocean 263 kilometer from Yokohama, Japan, a significant M5.4 earthquake occurred in the late afternoon of Tuesday June 25th, 2024. Around 600 thousand people have been exposed to shaking.

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Earthquake Summary

This earthquake hit under water in the North Pacific Ocean, 211 kilometers (131 mi) off the coast of Japan, 263 kilometer south-east of Yokohama in Kanagawa. The center of this earthquake had a quite shallow depth of 31 km. Shallow earthquakes usually have a larger impact than earthquakes deep in the earth.

Date and Time:	Jun 25, 2024 17:30 (Tokyo Time) - Jun 25, 2024 08:30 Universal Time.
Location:	263 km SE of Yokohama, Kanagawa, Japan. Coordinates 33°29'19"N 141°17'2"E.
Map:	Map of area around epicenter. Click to open in Google Maps.
Magnitude:	MAG 5.4 Detected by 26 stations. Maximum Error Range ±0.061 .
Depth:	31 km (19 mi) A quite shallow depth.
Max. Intensity:	IV Light 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 600 thousand people exposed to shaking

An estimated 600 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.

The highest earthquake impact level for this earthquake is IV, which corresponds with light shaking and likely no damage. Roughly 2,640 people are expected to be exposed to this level. Intensity level III was experienced by the majority of people (around 590 thousand). In their region, weak shaking and probably no damage can be expected. All exposure to shaking was within the borders of Japan .

Nearby towns and cities

This earthquake may have been felt in Japan . The closest significant population center near the earthquake is Katsuura in Chiba, Japan. Katsuura is located 205 kilometer (127 mi) south-southeast of the epicenter. Katsuura experienced an earthquake intensity (MMI Scale) of roughly III. That level implies weak shaking and probably no damage.

Multiple large cities are in proximity of today's earthquake. Tokyo is located 285 km to the north-northwest (intensity unknown, possibly low). Yokohama is located 263 km to the northwest (intensity unknown, possibly low). Kawasaki is located 268 km to the north-northwest (intensity unknown, possibly low).

A complete list of nearby places is included below. Estimated intensity data (MMI) sourced from a shake-map published by the US Geographic Survey is shown where available (cities without data probably experienced little impact).

Overview of nearby places

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

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:

• Kashiwa, Chiba, Japan: 1 person.

Aftershocks detected

Since this main shock, 1 smaller aftershock was detected. At a distance of 60 km (37 mi) north-northeast of this earthquake, an aftershock struck 2 days later. It measured a magnitude of 4.7

Overview of foreshocks and aftershocks

More earthquakes coming?

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.

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.

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 October 4th, 2023, when a 5.6 magnitude earthquake hit 277 km (172 mi) further south-southeast. An even stronger magnitude 6.3 earthquake struck on November 29th, 2021.

In total, 46 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.

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 29/06/24 08:38 (). 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 us6000n82p
2. European-Mediterranean Seismological Centre (EMSC): Earthquake 20240625_0000088
3. Geonames.org: World Cities Database
4. Google Maps: Static API
5. Earthquakelist.org: Historic Earthquakes Database

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