4.4

M4.4 Earthquake 76 km SW of Pagar Alam, IndonesiaMay 17, 2022

2022-05-17 23:53:24 UTC (2022-05-17) · approx. 6:53 AM UTC+7 local

MagnitudeM4.4(mb)
Time23:53 UTC6:53 AM UTC+7
Depth61.1 kmshallow crustal
Coordinates-4.489°, 102.732°
Felt byNo felt reports
Status✓ Reviewed by USGS

On May 17, 2022 at 23:53 UTC, a magnitude 4.4 shallow crustal earthquake struck 76 km SW of Pagar Alam, Indonesia, at a depth of 61.1 km and coordinates -4.4891°, 102.7320°.

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.

This earthquake is part of an ongoing aftershock sequence following the magnitude 5.0 mainshock that occurred 6 days ago 70 km SW of Pagar Alam, Indonesia. Since the mainshock, the USGS has recorded 0 aftershocks in this area. Aftershock activity is expected to continue for days to weeks as stresses on surrounding faults redistribute.

Map showing earthquake epicenter at -4.49°, 102.73°

Earthquake Details

Magnitude
4.4 mb
Depth
61.1 km
shallow crustal
Location
-4.4891°N
102.7320°E

Technical Information

Event ID
us6000hnc1
Event Type
earthquake
Status
✓ Reviewed
Significance
298
Stations Used
47
Azimuthal Gap
96.0°
Min Station Distance
0.257°
RMS Residual
0.69 sec
Last Updated
2022-07-24 02:39:41 UTC

Common Questions

How strong was the magnitude 4.4 earthquake near Pagar Alam, Indonesia?

The magnitude 4.4 earthquake that struck 76 km SW of Pagar Alam, Indonesia on May 17, 2022 at 23:53 UTC had a depth of 61.1 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.

Is this the same earthquake as the M5.0 one earlier?

No. This magnitude 4.4 earthquake is an aftershock of the larger magnitude 5.0 mainshock that occurred earlier 70 km SW of Pagar Alam, Indonesia. Aftershocks are smaller earthquakes triggered by stress changes from the mainshock.

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: us6000hnc1). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2022, May 17, 2022). M4.4 Earthquake 76 km SW of Pagar Alam, IndonesiaMay 17, 2022. Retrieved July 24, 2022 from https://www.earthquaketracker.org/earthquakes/event/us6000hnc1/