5.3

M5.3 Earthquake in the Pagan region, Northern Mariana IslandsJuly 8, 2022

2022-07-08 20:44:26 UTC (2022-07-08) · approx. 6:44 AM UTC+10 local

MagnitudeM5.3(mww)
Time20:44 UTC6:44 AM UTC+10
Depth10.0 kmshallow crustal
Coordinates18.816°, 146.956°
Felt byNo felt reports
Status✓ Reviewed by USGS

On July 8, 2022 at 20:44 UTC, a magnitude 5.3 shallow crustal earthquake struck in the Pagan region, Northern Mariana Islands, at a depth of 10.0 km and coordinates 18.8161°, 146.9559°. This earthquake was detected by 183 seismic stations with excellent location accuracy and was assigned a USGS significance rating of 432, placing it among routine seismic activity.

Physical scale: An earthquake of magnitude 5.3 releases seismic energy equivalent to roughly 1 kilotons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 2.7 km — a useful intuition for the size of the slip patch on the fault.

Map showing earthquake epicenter at 18.82°, 146.96°

Earthquake Details

Magnitude
5.3 mww
Depth
10.0 km
shallow crustal
Location
18.8161°N
146.9559°E

Technical Information

Event ID
us6000i10z
Event Type
earthquake
Status
✓ Reviewed
Significance
432
Stations Used
183
Azimuthal Gap
43.0°
Min Station Distance
5.571°
RMS Residual
0.58 sec
Last Updated
2024-01-18 16:39:34 UTC

Common Questions

How strong was the magnitude 5.3 earthquake in the Pagan region, Northern Mariana Islands?

The magnitude 5.3 earthquake that struck in the Pagan region, Northern Mariana Islands on July 8, 2022 at 20:44 UTC had a depth of 10.0 km. For context, this was a moderate earthquake that could be widely felt.

Where did the earthquake occur?

The earthquake epicenter was located at 18.8161°, 146.9559°, which is in the Pagan region, Northern Mariana Islands.

Were there aftershocks?

Aftershock activity is monitored continuously by the USGS. Aftershock sequences from magnitude 5.3 earthquakes can continue for days to weeks and gradually diminish over time.

Authoritative source: USGS event page (event ID: us6000i10z). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2022, July 8, 2022). M5.3 Earthquake in the Pagan region, Northern Mariana IslandsJuly 8, 2022. Retrieved January 18, 2024 from https://www.earthquaketracker.org/earthquakes/event/us6000i10z/