Written by on . Last updated January 24th, 2025.

In the night of Saturday December 28th, 2024, a significant MAG-5.3 earthquake hit in the North Pacific Ocean 72 kilometer from Iwaki, Japan.

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Earthquake Summary

This earthquake hit under water in the North Pacific Ocean, 61 kilometers (38 mi) off the coast of Japan, 72 kilometer east-northeast of Iwaki in Fukushima. The center of this earthquake had a quite shallow depth of 46 km. Shallow earthquakes usually have a larger impact than earthquakes deep in the earth.

Date and Time: Dec 28, 2024 04:10 (Tokyo Time)
- Dec 27, 2024 19:10 Universal Time.
Location: 72 km ENE of Iwaki, Fukushima, Japan.
Coordinates 37°22'10"N 141°35'11"E.
Map: Map of area around epicenter.
Map of area around epicenter. Click to open in Google Maps.
Magnitude: MAG 5.3
Detected by 18 stations. Maximum Error Range ±0.073 .
Depth: 46 km (28 mi)
A quite 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 . Located 53 kilometer (33 mi) east-southeast of the epicenter of this earthquake, Namie (Fukushima, Japan) is the nearest significant population center.

Major cities near this earthquake: Tokyo is located 252 km to the southwest. Yokohama is located 276 km to the southwest. Sendai is located 118 km to the north-northwest.

A complete list of nearby places is included below.

Overview of nearby places

Distance Place
53 km (33 mi)
WNW from epicenter
Namie

Fukushima, Japan.
72 km (45 mi)
WSW from epicenter
Iwaki

Fukushima, Japan.
90 km (56 mi)
W from epicenter
Funehikimachi-funehiki

Fukushima, Japan.
98 km (61 mi)
W from epicenter
Miharu

Fukushima, Japan.
98 km (61 mi)
NW from epicenter
Watari

Miyagi, Japan.
98 km (61 mi)
NW from epicenter
Kakuda

Miyagi, Japan.
99 km (62 mi)
SW from epicenter
Kitaibaraki

Ibaraki, Japan.
104 km (65 mi)
WNW from epicenter
Nihommatsu

Fukushima, Japan.
104 km (65 mi)
NW from epicenter
Iwanuma

Miyagi, Japan.
106 km (66 mi)
W from epicenter
Kōriyama

Fukushima, Japan.
106 km (66 mi)
SW from epicenter
Takahagi

Ibaraki, Japan.
107 km (66 mi)
WNW from epicenter
Fukushima

Fukushima, Japan.
107 km (66 mi)
W from epicenter
Sukagawa

Fukushima, Japan.
111 km (69 mi)
NW from epicenter
Shiroishi

Miyagi, Japan.
116 km (72 mi)
NNW from epicenter
Shiogama

Miyagi, Japan.
118 km (73 mi)
NNW from epicenter
Sendai

Miyagi, Japan.
119 km (74 mi)
SW from epicenter
Hitachi

Ibaraki, Japan.
119 km (74 mi)
NNW from epicenter
Ishinomaki

Miyagi, Japan.
120 km (75 mi)
NNW from epicenter
Rifu

Miyagi, Japan.
129 km (80 mi)
NNW from epicenter
Tomiya

Miyagi, Japan.
142 km (88 mi)
WSW from epicenter
Nasushiobara

Tochigi, Japan.
143 km (89 mi)
SW from epicenter
Hitachi-Naka

Ibaraki, Japan.
143 km (89 mi)
WNW from epicenter
Yonezawa

Yamagata, Japan.
143 km (89 mi)
WSW from epicenter
Kuroiso

Tochigi, Japan.
144 km (89 mi)
SW from epicenter
Katsuta

Ibaraki, Japan.
144 km (89 mi)
NW from epicenter
Yamagata

Yamagata, Japan.
145 km (90 mi)
NNW from epicenter
Furukawa

Miyagi, Japan.
149 km (93 mi)
WSW from epicenter
Ōtawara

Tochigi, Japan.
152 km (94 mi)
SW from epicenter
Mito

Ibaraki, Japan.
153 km (95 mi)
NW from epicenter
Tendō

Yamagata, Japan.
176 km (109 mi)
WSW from epicenter
Utsunomiya

Tochigi, Japan.
177 km (110 mi)
NNW from epicenter
Ichinoseki

Iwate, Japan.
186 km (116 mi)
SW from epicenter
Tsukuba

Ibaraki, Japan.
188 km (117 mi)
WSW from epicenter
Kanuma

Tochigi, Japan.
190 km (118 mi)
SSW from epicenter
Katori-shi

Chiba, Japan.
199 km (124 mi)
SW from epicenter
Oyama

Tochigi, Japan.
221 km (137 mi)
SW from epicenter
Kashiwa

Chiba, Japan.
230 km (143 mi)
SW from epicenter
Koshigaya

Saitama, Japan.
232 km (144 mi)
SW from epicenter
Matsudo

Chiba, Japan.
234 km (145 mi)
SW from epicenter
Honchō

Chiba, Japan.
234 km (145 mi)
WNW from epicenter
Niigata

Niigata, Japan.
237 km (147 mi)
SSW from epicenter
Chiba

Chiba, Japan.
237 km (147 mi)
SW from epicenter
Saitama

Saitama, Japan.
241 km (150 mi)
SW from epicenter
Kawaguchi

Saitama, Japan.
247 km (153 mi)
WSW from epicenter
Maebashi

Gunma, Japan.
248 km (154 mi)
SW from epicenter
Kawagoe

Saitama, Japan.
252 km (157 mi)
SW from epicenter
Tokyo

Tokyo, Japan.
257 km (160 mi)
SW from epicenter
Tokorozawa

Saitama, Japan.
265 km (165 mi)
SW from epicenter
Kawasaki

Kanagawa, Japan.
276 km (171 mi)
SW from epicenter
Yokohama

Kanagawa, Japan.
278 km (173 mi)
SW from epicenter
Hachiōji

Tokyo, Japan.
279 km (173 mi)
SW from epicenter
Machida

Tokyo, Japan.
289 km (180 mi)
SW from epicenter
Yokosuka

Kanagawa, Japan.
291 km (181 mi)
NNW from epicenter
Akita

Akita, Japan.
294 km (183 mi)
WSW from epicenter
Nakano

Nagano, Japan.
294 km (183 mi)
SW from epicenter
Uenohara

Yamanashi, Japan.
Cities and Towns around the epicenter of this earthquake.

Shaking reported by 3 people

People that feel an earthquake may report their experience to the US Geographic Survey. Currently, 3 people have reported shaking in 2 places 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:

  • Sendai, Miyagi, Japan: 2 people.
  • Inzai, Chiba, Japan: 1 person.

Risk of aftershocks?

This earthquake did not have any significant foreshocks nor aftershocks occurring within 100km (62 mi) of its epicenter.

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 happen often in the region

Earthquakes of this strength are very common in the region. This is the strongest earthquake to hit since November 26th, 2024, when a 5.3 magnitude earthquake hit 157 km (97 mi) further north-northeast. An even stronger magnitude 7.3 earthquake struck on March 16th, 2022.

In total, 92 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 month.

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 46 km (28 mi). Earthquakes this shallow could trigger a tsunami.

Sources

Last updated 24/01/25 23:18 (). 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.

  1. US Geographic Society (USGS): Earthquake us6000pfz8
  2. European-Mediterranean Seismological Centre (EMSC): Earthquake 20241227_0000245
  3. Geonames.org: World Cities Database
  4. Google Maps: Static API
  5. Earthquakelist.org: Historic Earthquakes Database

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