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Magnitude 6.1 Earthquake Strikes Northern Japan, No Immediate Damage Reported

A preliminary magnitude 6.1 earthquake occurred in northern Japan on April 26, 2026, according to the U.S. Geological Survey. The quake struck west of Sarabetsu in Hokkaido at a depth of 81 kilometers, with no immediate reports of fatalities or property damage. It follows a 7.7 magnitude earthquake off the coast the previous week that prompted a tsunami alert.

Abc News
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japantoday.com
4 sources·Apr 26, 11:21 PM(11 days ago)·1m read
Magnitude 6.1 Earthquake Strikes Northern Japan, No Immediate Damage Reported中華民國交通部中央氣象局 / Wikimedia (Attribution)
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A magnitude 6.1 earthquake struck northern Japan on April 26, 2026, the U.S. Geological Survey reported. The event occurred early that Monday, with no immediate reports of fatalities or property damage. The quake was centered 18 kilometers west of the town of Sarabetsu in Hokkaido, at a depth of 81 kilometers, according to the USGS.

This earthquake follows a 7.7 magnitude event off northern Japan the previous Monday. That quake triggered a short-lived tsunami alert for coastal areas. It also led to an advisory indicating a slightly higher risk of a possible megaquake in those regions, the USGS reported.

Response Officials are monitoring the area for aftershocks.

No further details on potential impacts have been released as of April 27, 2026.

Key Facts

Magnitude 6.1
preliminary measurement by USGS
Location
18 km west of Sarabetsu, Hokkaido
Depth
81 kilometers underground
No damage
no immediate fatalities or property reports
Prior quake
7.7 magnitude with tsunami alert

Story Timeline

2 events
  1. April 26, 2026

    A magnitude 6.1 earthquake struck northern Japan with no immediate reports of damage.

    1 sourceAbc News
  2. Previous Monday (circa April 19, 2026)

    A 7.7 magnitude earthquake off northern Japan sparked a tsunami alert and megaquake risk advisory.

    1 sourceAbc News

Potential Impact

  1. 01

    Officials may increase monitoring for aftershocks in Hokkaido following the quake.

  2. 02

    Seismic data could inform future earthquake preparedness in northern Japan.

  3. 03

    Coastal areas could see continued advisories for higher megaquake risk.

  4. 04

    Local residents in Sarabetsu might experience minor disruptions if aftershocks occur.

Transparency Panel

Sources cross-referenced4
Framing risk0/100 (low)
Confidence score65%
Synthesized bySubstrate AI
Word count128 words
PublishedApr 26, 2026, 11:21 PM

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