4.4

M4.4 Earthquake 238 km N of Saipan, Northern Mariana Islands — February 17, 2024

2024-02-17 17:26:38 UTC (2024-02-17) · approx. 3:26 AM UTC+10 local

MagnitudeM4.4(mb)
Time17:26 UTC≈ 3:26 AM UTC+10
Depth108.1 kmintermediate depth
Coordinates17.363°, 145.920°
Felt byNo felt reports
Status✓ Reviewed by USGS

On February 17, 2024 at 17:26 UTC, a magnitude 4.4 intermediate depth earthquake struck 238 km N of Saipan, Northern Mariana Islands, at a depth of 108.1 km and coordinates 17.3635°, 145.9201°.

Physical scale: An earthquake of magnitude 4.4 releases seismic energy equivalent to roughly 60 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 655 m — a useful intuition for the size of the slip patch on the fault.

Map showing earthquake epicenter at 17.36°, 145.92°

Earthquake Details

Magnitude
4.4 mb
Depth
108.1 km
intermediate depth
Location
17.3635°N
145.9201°E

Technical Information

Event ID
us7000m0t9
Event Type
earthquake
Status
✓ Reviewed
Significance
298
Stations Used
61
Azimuthal Gap
115.0°
Min Station Distance
2.114°
RMS Residual
0.63 sec
Last Updated
2024-04-24 14:42:06 UTC

Common Questions

How strong was the magnitude 4.4 earthquake near Saipan, Northern Mariana Islands?

The magnitude 4.4 earthquake that struck 238 km N of Saipan, Northern Mariana Islands on February 17, 2024 at 17:26 UTC had a depth of 108.1 km. For context, this was a light earthquake commonly felt near the epicenter.

Were there aftershocks?

Aftershock activity is monitored continuously by the USGS. Aftershock sequences from magnitude 4.4 earthquakes can continue for several days and gradually diminish over time.

Understanding This Data

Magnitude 4.4 earthquakes are often felt but rarely cause damage.

Learn more about magnitude →

Authoritative source: USGS event page (event ID: us7000m0t9). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2024, February 17, 2024). M4.4 Earthquake 238 km N of Saipan, Northern Mariana Islands — February 17, 2024. Retrieved April 24, 2024 from https://www.earthquaketracker.org/earthquakes/event/us7000m0t9/