M 5.8 Earthquake Strikes 4 km N of Toride, 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 5.8 earthquake occurred 4 km north of Toride, Japan, at a depth of 61 km.
What this USGS earthquake report tells you, and what most readers miss
This notice was issued by USGS on August 22, 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 M 5.8 mww earthquake struck 4 km N of Toride, Japan, on August 22, 2026, at 12:20:39 UTC. The event was recorded at a depth of 61 km.
Location Details
The earthquake was located at coordinates 35.9375°N, 140.0778°E, 4 km north of Toride, Japan. The depth of 61 km places it in the intermediate range (20-70 km).
Impact Assessment
The earthquake was felt by 52 people, with a maximum reported intensity of 5.5 on the Community Decimal Intensity scale. The USGS assigned a green alert level. No tsunami was generated (tsunami advisory status: 0).
What You Should Know
Earthquakes of this magnitude can cause damage to poorly constructed buildings. Residents should be prepared for possible aftershocks and follow standard safety procedures.
Source
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 (860 characters here).
Similar severity timing
Same severity (medium) notices issued closest in time to August 22, 2026.
Frequently Asked Questions
Common questions about this USGS earthquake report.