M 5.6 Earthquake Strikes 140 km East of Noda, 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 5.6 earthquake occurred 140 km east of Noda, Japan, at a depth of 35 km on June 28, 2026, at 2:44 PM UTC, with no tsunami advisory issued.
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 Eastern 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
An earthquake with a magnitude of 5.6 (mww) struck 140 km east of Noda, Japan. The event occurred on June 28, 2026, at 2:44 PM UTC, at a depth of 35 km.
Location Details
The earthquake was centered 140 km east of Noda, Japan, at coordinates 40.1562 latitude and 143.4599 longitude. At a depth of 35 km, this is considered an intermediate-depth earthquake (between 20-70 km), which can sometimes produce more widespread shaking compared to shallower events.
Impact Assessment
There were no felt reports available for this event. No tsunami advisory was issued, as indicated by the data, and the alert level is green, suggesting no immediate concern.
What You Should Know
This moderate earthquake, with a magnitude of 5.6, may cause noticeable shaking and potential damage to poorly constructed buildings in the affected area. Aftershocks are possible following such events, though specifics cannot be predicted. For safety, individuals in earthquake-prone regions should follow basic precautions like dropping to the ground, covering under a sturdy object, and holding on during shaking.
Source
This information is from the United States Geological Survey (USGS). For more details, visit: USGS Event Page
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 (1,326 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.