M5.2 Earthquake 181 km SW of Merizo Village, Guam — September 14, 2022
2022-09-14 04:05:42 UTC (2022-09-14) · approx. 2:05 PM UTC+10 local
Felt by 1 person across nearby locations.
On September 14, 2022 at 04:05 UTC, a magnitude 5.2 shallow crustal earthquake struck 181 km SW of Merizo Village, Guam, at a depth of 23.2 km and coordinates 12.0155°, 143.5879°. The earthquake was reported felt by 1 personacross nearby locations, with a maximum shaking intensity of Modified Mercalli Intensity (MMI) 2.7 (weak). The USGS PAGER system issued a green alert level for this event, indicating no significant casualties or damage expected. This earthquake was detected by 77 seismic stations with excellent location accuracy and was assigned a USGS significance rating of 416, placing it among routine seismic activity. The nearest populated place is Umatac Village (population 903).
Physical scale: An earthquake of magnitude 5.2 releases seismic energy equivalent to roughly 951 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 2.3 km — a useful intuition for the size of the slip patch on the fault.
Nearest Populated Places
ShakeMap — predicted shaking intensity
Modeled ground-motion intensity contoured on the Modified Mercalli scale (MMI). Computed by the USGS from the moment-tensor solution and regional ground-motion prediction equations.
Source: U.S. Geological Survey ShakeMap. View interactive ShakeMap on USGS
Did You Feel It? — community-reported shaking
Aggregated felt-report intensity from 1 citizen response to the USGS Did You Feel It? system. Each colored zone represents the average MMI from reports in that area.
Source: U.S. Geological Survey Did You Feel It?. View on USGS · submit your own report
Population exposure (USGS PAGER)
Estimated population that experienced each level of shaking. Based on the USGS PAGER rapid impact assessment, which combines ShakeMap output with global population grids.
| Shaking intensity (MMI) | Description | Population exposed |
|---|---|---|
| MMI 3 | weak | 44,928 |
Earthquake Details
143.5879°E
Technical Information
Common Questions
How strong was the magnitude 5.2 earthquake near Merizo Village, Guam?
The magnitude 5.2 earthquake that struck 181 km SW of Merizo Village, Guam on September 14, 2022 at 04:05 UTC had a depth of 23.2 km. It was felt by 1 person with maximum shaking intensity of MMI 2.7 (weak). For context, this was a moderate earthquake that could be widely felt.
Where did the earthquake occur?
The earthquake epicenter was located at 12.0155°, 143.5879°, which is 181 km SW of Merizo Village, Guam. The nearest populated place is Umatac Village (population 903).
Were there aftershocks?
Aftershock activity is monitored continuously by the USGS. Aftershock sequences from magnitude 5.2 earthquakes can continue for days to weeks and gradually diminish over time.
Actions
Authoritative source: USGS event page (event ID: us7000i7u8). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2022, September 14, 2022). M5.2 Earthquake 181 km SW of Merizo Village, Guam — September 14, 2022. Retrieved August 29, 2024 from https://www.earthquaketracker.org/earthquakes/event/us7000i7u8/