M 4.5 Light Earthquake Strikes West of Kailua-Kona, Hawaii
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A magnitude 4.5 earthquake occurred at a depth of 149.9 km approximately 74 kilometers west of Kailua-Kona, Hawaii, on February 23, 2026.
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 "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, Hawaii.
What Happened
A light earthquake with a magnitude of 4.46 (md) was recorded on February 23, 2026, at 17:09:04 UTC. The seismic event occurred at a depth of 149.9 kilometers, which is classified as a deep earthquake. Deep earthquakes (those occurring at depths greater than 70 km) are typically felt over a wide area but are less likely to cause significant damage at the surface compared to shallow events.
Location Details
The epicenter was located at coordinates 19.520°N, 156.701°W, approximately 74 km (46 miles) west of Kailua-Kona, Hawaii. The event originated deep beneath the ocean floor in the Pacific region west of the Big Island.
Impact Assessment
Based on the source data from the USGS, there is no tsunami advisory, watch, or warning in effect (tsunami: 0). No felt reports have been officially submitted to the USGS at this time, and no specific alert level color has been assigned to this event. Given the magnitude and significant depth, the impact is expected to be minimal.
What You Should Know
Earthquakes in the magnitude 4.0-4.9 range are considered "light" and are often noticeable as shaking but rarely cause structural damage. While aftershocks are a possibility following any seismic event, deep earthquakes often result in fewer felt aftershocks than those occurring closer to the surface. Residents are encouraged to follow standard safety protocols during seismic activity.
Source
Data provided by the USGS Earthquake Hazards Program.
Original source: USGS Official Notice ↗
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