M 3.3 Earthquake Recorded 25 km WSW of Kahaluu-Keauhou, Hawaii
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A minor 3.3 magnitude earthquake occurred off the coast of Hawaii on March 18, 2026. The shallow tremor was centered 25 km west-southwest of Kahaluu-Keauhou.
What this USGS earthquake report tells you, and what most readers miss
This notice was issued by USGS on April 6, 2026 and geographically references Hawaii. Its severity classification of "low" 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, Hawaii.
What Happened
A minor earthquake with a magnitude of 3.3 ml occurred on Wednesday, March 18, 2026, at 2:25 AM local time (12:25:49 UTC). The seismic event was recorded at a shallow depth of 10.9 km. Due to its magnitude, this is classified as a minor earthquake, which is a routine geological event.
Location Details
The epicenter was located at coordinates 19.453, -156.169, approximately 25 km west-southwest of Kahaluu-Keauhou, Hawaii. The depth of 10.9 km is considered shallow (less than 20 km). Shallow earthquakes are typically more noticeable to those nearby than deeper events of the same magnitude.
Impact Assessment
There are currently no felt reports associated with this event in the USGS database. No tsunami advisory, watch, or warning has been issued in relation to this tremor. Based on the magnitude, no damage or injuries are expected from this activity.
What You Should Know
Minor earthquakes of this size are common in seismically active regions like Hawaii and often go unnoticed by the public. Residents are reminded that aftershocks are a natural possibility following any seismic activity. In the event of stronger shaking, the recommended safety action is to "Drop, Cover, and Hold On."
Source
Information for this report was provided by the USGS Earthquake Hazards Program.
Original source: USGS Official Notice ↗
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