Written by on . Last updated May 2nd, 2024.

A significant Magnitude 5.1 earthquake struck under land 7 kilometer from Nichinan in Japan in the morning of Monday April 8th, 2024.

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Earthquake Summary

The earthquake struck on land in Japan, 7 kilometer (4 mi) north-northeast of Nichinan in Miyazaki. The center of this earthquake had a quite shallow depth of 53 km. Shallow earthquakes usually have a larger impact than earthquakes deep in the earth.

Date and Time: Apr 8, 2024 10:25 (Tokyo Time)
- Apr 8, 2024 01:25 Universal Time.
Location: 7 km NNE of Nichinan, Miyazaki, Japan.
Coordinates 31°39'30"N 131°23'23"E.
Map: Map of area around epicenter.
Map of area around epicenter. Click to open in Google Maps.
Magnitude: MAG 5.1
Detected by 22 stations. Maximum Error Range ±0.066 .
Depth: 53 km (33 mi)
A quite shallow depth.
Tsunami Risk: Tsunami very unlikely
While this was a shallow earthquake in a coastal area, it appears to have occurred under land (6 km from the sea) with a magnitude that is usually not strong enough to 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 Nichinan in Miyazaki, Japan. Nichinan is located 7 kilometer (4 mi) north-northeast of the epicenter.

Multiple major population centers exist within 300km of the earthquake that struck today. Miyazaki is located 29 km to the north. Kagoshima is located 80 km to the west. Fukuoka is located 234 km to the north-northwest.

The table below provides an overview of all places in proximity of today's earthquake.

Overview of nearby places

Distance Place
7 km (4 mi)
SSW from epicenter
Nichinan

Miyazaki, Japan.
24 km (15 mi)
SW from epicenter
Kushima

Miyazaki, Japan.
29 km (18 mi)
N from epicenter
Miyazaki

Miyazaki, Japan.
32 km (20 mi)
WNW from epicenter
Miyakonojō

Miyazaki, Japan.
34 km (21 mi)
SW from epicenter
Shibushi

Kagoshima, Japan.
35 km (22 mi)
W from epicenter
Sueyoshichō-ninokata

Kagoshima, Japan.
49 km (30 mi)
N from epicenter
Tsuma

Miyazaki, Japan.
53 km (33 mi)
NW from epicenter
Kobayashi

Miyazaki, Japan.
54 km (34 mi)
N from epicenter
Takanabe

Miyazaki, Japan.
60 km (37 mi)
W from epicenter
Kokubu-matsuki

Kagoshima, Japan.
60 km (37 mi)
WSW from epicenter
Kanoya

Kagoshima, Japan.
60 km (37 mi)
N from epicenter
Kawaminami

Miyazaki, Japan.
62 km (39 mi)
W from epicenter
Hamanoichi

Kagoshima, Japan.
68 km (42 mi)
WSW from epicenter
Tarumizu

Kagoshima, Japan.
69 km (43 mi)
W from epicenter
Kajiki

Kagoshima, Japan.
80 km (50 mi)
W from epicenter
Kagoshima

Kagoshima, Japan.
85 km (53 mi)
WNW from epicenter
Ōkuchi-shinohara

Kagoshima, Japan.
85 km (53 mi)
SW from epicenter
Ibusuki

Kagoshima, Japan.
87 km (54 mi)
NW from epicenter
Hitoyoshi

Kumamoto, Japan.
94 km (58 mi)
NNE from epicenter
Kadogawa

Miyazaki, Japan.
94 km (58 mi)
W from epicenter
Ijūin

Kagoshima, Japan.
105 km (65 mi)
WSW from epicenter
Kaseda-shirakame

Kagoshima, Japan.
105 km (65 mi)
W from epicenter
Satsumasendai

Kagoshima, Japan.
106 km (66 mi)
W from epicenter
Kushikino

Kagoshima, Japan.
106 km (66 mi)
NNE from epicenter
Nobeoka

Miyazaki, Japan.
108 km (67 mi)
WNW from epicenter
Izumi

Kagoshima, Japan.
111 km (69 mi)
WSW from epicenter
Makurazaki

Kagoshima, Japan.
112 km (70 mi)
WNW from epicenter
Minamata

Kumamoto, Japan.
119 km (74 mi)
WNW from epicenter
Akune

Kagoshima, Japan.
120 km (75 mi)
NW from epicenter
Honmachi

Kumamoto, Japan.
133 km (83 mi)
NNW from epicenter
Uto

Kumamoto, Japan.
144 km (89 mi)
NNW from epicenter
Kumamoto

Kumamoto, Japan.
146 km (91 mi)
NW from epicenter
Hondomachi-hondo

Kumamoto, Japan.
151 km (94 mi)
NNE from epicenter
Saiki

Ōita, Japan.
163 km (101 mi)
NNW from epicenter
Tamana

Kumamoto, Japan.
176 km (109 mi)
N from epicenter
Ōita

Ōita, Japan.
177 km (110 mi)
NNW from epicenter
Ōmuta

Fukuoka, Japan.
179 km (111 mi)
N from epicenter
Tsurusaki

Ōita, Japan.
181 km (112 mi)
N from epicenter
Beppu

Ōita, Japan.
183 km (114 mi)
NW from epicenter
Isahaya

Nagasaki, Japan.
187 km (116 mi)
NW from epicenter
Nagasaki

Nagasaki, Japan.
190 km (118 mi)
NNW from epicenter
Hita

Ōita, Japan.
195 km (121 mi)
NW from epicenter
Ōmura

Nagasaki, Japan.
202 km (126 mi)
NNW from epicenter
Kurume

Fukuoka, Japan.
203 km (126 mi)
NNW from epicenter
Saga

Saga, Japan.
229 km (142 mi)
NW from epicenter
Sasebo

Nagasaki, Japan.
234 km (145 mi)
NNW from epicenter
Fukuoka

Fukuoka, Japan.
249 km (155 mi)
NNW from epicenter
Kitakyushu

Fukuoka, Japan.
258 km (160 mi)
N from epicenter
Shimonoseki

Yamaguchi, Japan.
275 km (171 mi)
NNE from epicenter
Matsuyama

Ehime, Japan.
291 km (181 mi)
NE from epicenter
Kochi

Kōchi, Japan.
294 km (183 mi)
NNE from epicenter
Ōtake

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

Shaking reported by 4 people

People that feel an earthquake may report their experience to the US Geographic Survey. Currently, 4 people have reported shaking in 4 places, all within 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.
  • Miyazaki, Miyazaki, Japan: 1 person.
  • Shizuoka, Shizuoka, Japan: 1 person.
  • Higashimurayama, Tokio, Japan: 1 person.

Aftershocks detected

After this earthquake struck, 1 smaller aftershock occurred. Just 4 hrs after this main shock, an earthquake measuring MAG-4.6 was detected 68 km (42 mi) north-east of this earthquake.

Overview of foreshocks and aftershocks

Classification Magnitude When Where
Main Shock
This Earthquake
M 5.1 Apr 8, 2024 10:25
(Tokyo Time)
-
Aftershock M 4.6 4 hrs later
Apr 8, 2024 13:57 (Tokyo Time)
68 km (42 mi)
NE from Main Shock.
Detected MAG2.5+ earthquakes within within 100km (62 mi), that occurred in the three days before and after the main shock.

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.

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 10th, 2023, when a 5.3 magnitude earthquake hit 72 km (45 mi) further southwest. An even stronger magnitude 7 earthquake struck on April 15th, 2016.

In total, 49 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.

Tsunami very unlikely

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.

While MAG-6.5+ earthquakes may cause tsunami's, it appears that the epicenter of this earthquake hit under land. In addition, the reported depth is deeper than 100km, making the risk of a tsunami even less likely. However always 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 on land near a coastal area (6 km from the sea). Not this earthquake.
This earthquake had a magnitude of 5.1. Earthquakes of this strength are unlikely to trigger a tsunami.
This earthquake occurred at a depth of of 53 km (33 mi). Earthquakes this shallow could trigger a tsunami.

Sources

Last updated 02/05/24 03:08 (). 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 us7000mapp
  2. European-Mediterranean Seismological Centre (EMSC): Earthquake 20240408_0000011
  3. Geonames.org: World Cities Database
  4. Google Maps: Static API
  5. Earthquakelist.org: Historic Earthquakes Database

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