Planet Briefing

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Magnitude 4.6 earthquake in Japan (19 Sep 2026)

GDACS reports a magnitude 4.6 earthquake at 38.536 km depth near Japan on 2026-09-19 07:08 UTC. The report notes ~40,000 people within 100 km of the epicenter.

Categories: severe-weather-and-natural-disasters

Generated scores

Scores are based on the cited reporting and use a 1–10 scale. Read the methodology.

Confidence
9/10
Geographic reach
2/10
Global importance
3/10
Impact magnitude
2/10
Positivity
1/10
Urgency
4/10

Why it matters

Quakes of this size are typically minor but can be felt locally; they rarely cause major damage in Japan's built environment. Monitoring and situational awareness are warranted in case of aftershocks or localized impacts.

Location

Sources

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