M 5.7 Earthquake Strikes 17 km SW of Kōya, Japan
Areazine synthesizes this USGS earthquake report directly from USGS's official public data feed. See our methodology for full source attribution and refresh cadence.
A magnitude 5.7 earthquake occurred 17 km southwest of Kōya, Japan, at a depth of approximately 59 km on September 13, 2026, at 14:48 UTC.
What this USGS earthquake report tells you, and what most readers miss
This notice was issued by USGS on May 2, 2026 and geographically references Southern Japan. Its severity classification of "medium" signals how the issuing agency weighs the risk of harm if no action is taken - "critical" and "high" tier alerts typically carry direct consumer actions, while "medium" and "low" tend toward informational guidance or monitoring advisories. The category it belongs to - Earthquakes - determines the monitoring protocol behind it, which shapes what follow-up action (checking for structural damage, watching for aftershocks, reviewing local building codes) is relevant and which agency holds authority over the assessment.
Most readers skim a notice like this, check whether they are personally affected, and move on. The more useful lens is to verify its scope, source, and timestamp, then compare related notices without assuming that one record proves a broader trend.
Areazine pairs this record with the original agency URL so you can check the primary source before acting. Its related labels are earthquake, seismic, usgs, Japan.
What Happened
A magnitude 5.7 mww earthquake struck 17 km SW of Kōya, Japan. It occurred at a depth of 59.1 km on September 13, 2026, at 14:48 UTC.
Location Details
The earthquake was centered at coordinates 34.107 latitude and 135.4857 longitude, near Kōya in Japan. With a depth of 59.1 km, it is classified as an intermediate depth earthquake (between 20-70 km), which can be associated with tectonic plate interactions and may result in broader shaking compared to shallower events.
Impact Assessment
The earthquake was reported as felt by 17 people. There is no tsunami advisory, and the alert level is green, indicating a low level of concern.
What You Should Know
This moderate earthquake (magnitude 5.7) can cause damage to poorly constructed buildings. Aftershocks are possible, so individuals in the area should follow basic safety measures such as securing objects and knowing emergency procedures.
Source
This information is from the United States Geological Survey (USGS). For more details, visit: https://earthquake.usgs.gov/earthquakes/eventpage/us7000shs2
Original source: USGS Official Notice ↗
Related Earthquakes
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Two Areazine-derived peer sets for this USGS earthquake report: nearest notices by body length and by same severity near the same agency date. Peers come from other categories so they are not the same-feed Related list above.
Similar body length
Nearest notices by article body length (1,085 characters here).
Similar severity timing
Same severity (medium) notices issued closest in time to May 2, 2026.
Frequently Asked Questions
Common questions about this USGS earthquake report.