M 5.5 in Japan on 04 Feb 2026 18:20 UTC

Event summary

This earthquake can have a low humanitarian impact based on the magnitude and the affected population and their vulnerability.

GDACS ID EQ 1522917
Earthquake Magnitude: 5.5M
Depth: 21.4 Km
Lat/Lon: 29.1074 , 130.3853
Event Date: 04 Feb 2026 18:20 UTC
05 Feb 2026 03:20 Local
Exposed Population: 6 thousand in MMI IV
Inserted at: 04 Feb 2026 18:39 UTC
INFORM Coping capacity:
1.1 (Japan)

GDACS Score

For more info on GDACS alert score click here.
  Earthquake
(Shakemap)		 GDACS score
NEIC 0 0
us6000s6gs Scaled population (raster) 0  
  C1 shakemap 0  
  C2 shakemap 0  
  Country Vulnerability 0  
  INFORM_normalised 0  
Maximum expected impact using different data sources.
Virtual OSOCC
Meteo assessment
Satellite products
Analytical products
Detailed event map. European Union, 2026. Map produced by EC-JRC.
The boundaries and the names shown on this map do not imply official endorsement or acceptance by the European Union.

Updates on volcanic activity (Smithsonian)

Latest media headlines

2011 Japan Earthquake Mystery Unveiled 2/8/2026 4:02:00 PM.

Understanding the undersea geological formations involved in these powerful tremors offers critical insights into why some earthquakes result in far more destruction than others. What was once considered a straightforward process of tectoni
...(more)
Significant earthquake of magnitude 5.0 just reported 124 km southeast.. 2/8/2026 3:38:00 AM.

A magnitude 5.0 earthquake near Iwaki, Iwaki-shi, Fukushima, Japan, was reported only 19 minutes ago by the German Research Centre for Geosciences (GFZ), considered one of the key international agencies that monitor seismic activity worldwi
...(more)
Tepco Restarts Kashiwazaki-Kariwa Reactor 2/7/2026 4:52:00 PM.

“Today, we received approval from the Nuclear Regulation Authority (NRA) to begin test operation of the reactor to confirm the integrity of the equipment, including a pre-operational operator inspection to be conducted after reactor startup
...(more)
Tepco prepares for restart of Kashiwazaki-Kariwa unit 2/6/2026 7:29:00 PM.

"We are currently adjusting personnel and confirming prior arrangements, and plan to start up the reactor on 9 February," Takeyuki Inagaki, head of the Kashiwazaki-Kariwa plant, told a press conference on Friday. Tokyo Electric Power Compan
...(more)

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Estimated casualties (PAGER)

USGS estimates the number of casualties for each earthquake for the Prompt Assessment of Global Earthquakes for Response (PAGER) product.
The graph shows the current fatalities estimate.

Exposed population

Data, images, links, services and documents

For this events, GDACS has links to information from the following sources: EC-JRC (48), NEIC (4), OCHA (1), WMO (1), USGS (5), (2), INFORM (2),