M 4.5 in Japan on 16 Jun 2026 17:25 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 1546850
Earthquake Magnitude: 4.5M
Depth: 35 Km
Lat/Lon: 39.9143 , 143.0218
Event Date: 16 Jun 2026 17:25 UTC
17 Jun 2026 03:25 Local
Exposed Population:
110 thousand in MMI II
Inserted at: 16 Jun 2026 18:39 UTC
INFORM Coping capacity:
1.1 (Japan)

GDACS Score

For more info on GDACS alert score click here.
  Earthquake
(Rapid Impact)		 GDACS score
NEIC 0 0
us7000stff Scaled population (vector) 0  
  C1 rapid impact 0  
  C2 rapid impact 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

Single station seismic observations enable high resolution localizatio.. 6/20/2026 2:25:00 PM.

Precisely locating tectonic tremor events is essential for understanding subduction zone dynamics. However, the lack of impulsive phase arrivals typically necessitates multi-station observations, posing a fundamental challenge for high-reso
...(more)
Japan earthquake shifted entire country eastward 6/20/2026 1:17:00 PM.

AzerNEWS reports. According to a study published in the scientific journal Science, seismic waves generated by the earthquake traveled all the way to Earth''s core, reflected back toward the surface, and triggered movements in the tectonic
...(more)
Japan shifted eastward by core-reflected waves after Tohoku earthquake 6/20/2026 10:58:00 AM.

About 15 minutes after the magnitude-9 Tohoku earthquake on March 11, 2011, nearly all of Japan shifted eastward by approximately half a centimeter. This slight move resulted from a powerful seismic wave that traveled 5,800 kilometers to th
...(more)
Japan earthquake shifted entire country eastward 6/20/2026 8:05:00 AM.

AzerNEWS reports. According to a study published in the scientific journal Science, seismic waves generated by the earthquake traveled all the way to Earth''s core, reflected back toward the surface, and triggered movements in the tectonic
...(more)

View more news

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 (41), NEIC (4), OCHA (1), WMO (1), (2), INFORM (2), USGS (2),