M 5.4 Earthquake Strikes 146 km East of Miyako, 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 5.4 earthquake occurred 146 km east of Miyako, Japan, at a shallow depth of 10 km on June 14, 2026, at 08:22:29 UTC.
What this USGS earthquake report tells you, and what most readers miss
This notice was issued by USGS on April 21, 2026 and geographically references 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 5.4 mww earthquake occurred 146 km east of Miyako, Japan, at a depth of 10 km. The event took place on June 14, 2026, at 08:22:29 UTC.
Location Details
The earthquake was located at coordinates 39.8481° N latitude and 143.6273° E longitude, approximately 146 km east of Miyako, Japan. With a depth of 10 km, it is classified as a shallow earthquake, which typically means it could be felt more intensely at the surface compared to deeper events.
Impact Assessment
No felt reports were available. There is no tsunami advisory, as indicated by the data, and the alert level is green, suggesting a low level of concern.
What You Should Know
This moderate earthquake, with a magnitude of 5.4, has the potential to cause damage to poorly constructed buildings in the affected area. It is possible that aftershocks may occur, and individuals in the region should follow general safety tips such as dropping to the ground, covering under a sturdy object, and holding on during any shaking.
Source
Information from the United States Geological Survey: [https://earthquake.usgs.gov/earthquakes/eventpage/us6000srs6]
Original source: USGS Official Notice ↗
Related Earthquakes
All Earthquakes →Nationwide notices with similar length or severity timing 8
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 (1,150 characters here).
Similar severity timing
Same severity (medium) notices issued closest in time to April 21, 2026.
Frequently Asked Questions
Common questions about this USGS earthquake report.