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Moderate magnitude 4.5 earthquake at 96 km depth
16 Sep 16:56 UTC: First to report: EMSC after 55 minutes.
16 Sep 16:57: Now using data updates from USGS
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Earthquake details Date & timeSep 16, 2024 16:01:20 UTC – Local time at epicenterMonday, Sep 16, 2024, at 07:01 am (America/Adak GMT -9) StatusConfirmed Magnitude4.5 Depth96 km Epicenter latitude / longitude52.2566°N / 173.8693°W Aleutians West, Alaska, United States Seismic antipode52.2566°S / 6.1307°E Bouvet Island Shaking intensityIII Weak shaking near epicenter Felt0 reports Primary data sourceUSGS (United States Geological Survey) Nearest volcanoAtka (20 km / 12 mi) Weather at epicenter at time of quakeModerate Rain 9.1°C (48 F), humidity: 98%, wind: 8 m/s (15 kts) from SSE Estimated seismic energy released3.5 x 1011 joules (98.6 megawatt hours, equivalent to 84.8 tons of TNT) | about seismic energy
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Impact of this earthquake: Level GREEN
Based on seismic and statistical models, USGS estimates that the risk of fatalities and damage from this earthquake is low. The main factors that contribute to this evaluation are:
The maximum expected ground shaking from this quake was unlikely to reach dangerous levels over populated areas; it should not have surpassed intensity III (Weak) on the MMI scale significantly.
The quake appears to have occurred far from
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