4.7

M4.7 Earthquake in the Pagan region, Northern Mariana IslandsAugust 5, 2024

2024-08-05 06:59:10 UTC (2024-08-05) · approx. 4:59 PM UTC+10 local

MagnitudeM4.7(mb)
Time06:59 UTC4:59 PM UTC+10
Depth230.6 kmintermediate depth
Coordinates18.959°, 145.438°
Felt byNo felt reports
Status✓ Reviewed by USGS

On August 5, 2024 at 06:59 UTC, a magnitude 4.7 intermediate depth earthquake struck in the Pagan region, Northern Mariana Islands, at a depth of 230.6 km and coordinates 18.9591°, 145.4382°. This earthquake was detected by 193 seismic stations with excellent location accuracy and was assigned a USGS significance rating of 340, placing it among routine seismic activity.

Physical scale: An earthquake of magnitude 4.7 releases seismic energy equivalent to roughly 169 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 1.1 km — a useful intuition for the size of the slip patch on the fault.

Map showing earthquake epicenter at 18.96°, 145.44°

Earthquake Details

Magnitude
4.7 mb
Depth
230.6 km
intermediate depth
Location
18.9591°N
145.4382°E

Technical Information

Event ID
us6000ni52
Event Type
earthquake
Status
✓ Reviewed
Significance
340
Stations Used
193
Azimuthal Gap
39.0°
Min Station Distance
3.713°
RMS Residual
0.55 sec
Last Updated
2024-10-24 17:56:32 UTC

Common Questions

How strong was the magnitude 4.7 earthquake in the Pagan region, Northern Mariana Islands?

The magnitude 4.7 earthquake that struck in the Pagan region, Northern Mariana Islands on August 5, 2024 at 06:59 UTC had a depth of 230.6 km. For context, this was a light earthquake commonly felt near the epicenter.

Where did the earthquake occur?

The earthquake epicenter was located at 18.9591°, 145.4382°, which is in the Pagan region, Northern Mariana Islands.

Were there aftershocks?

Aftershock activity is monitored continuously by the USGS. Aftershock sequences from magnitude 4.7 earthquakes can continue for several days and gradually diminish over time.

Authoritative source: USGS event page (event ID: us6000ni52). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2024, August 5, 2024). M4.7 Earthquake in the Pagan region, Northern Mariana IslandsAugust 5, 2024. Retrieved October 24, 2024 from https://www.earthquaketracker.org/earthquakes/event/us6000ni52/