4.3

M4.3 Earthquake 67 km NW of Ende, IndonesiaJuly 14, 2023

2023-07-14 21:06:07 UTC (2023-07-14) · approx. 5:06 AM UTC+8 local

MagnitudeM4.3(mb)
Time21:06 UTC5:06 AM UTC+8
Depth195.3 kmintermediate depth
Coordinates-8.406°, 121.240°
Felt byNo felt reports
Status✓ Reviewed by USGS

On July 14, 2023 at 21:06 UTC, a magnitude 4.3 intermediate depth earthquake struck 67 km NW of Ende, Indonesia, at a depth of 195.3 km and coordinates -8.4057°, 121.2403°.

Physical scale: An earthquake of magnitude 4.3 releases seismic energy equivalent to roughly 43 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 558 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 1 day ago 54 km NNW of Ende, Indonesia. Since the mainshock, the USGS has recorded 24 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 -8.41°, 121.24°

Earthquake Details

Magnitude
4.3 mb
Depth
195.3 km
intermediate depth
Location
-8.4057°N
121.2403°E

Technical Information

Event ID
us7000kfuk
Event Type
earthquake
Status
✓ Reviewed
Significance
284
Stations Used
25
Azimuthal Gap
75.0°
Min Station Distance
1.013°
RMS Residual
0.61 sec
Last Updated
2023-09-16 19:16:16 UTC

Common Questions

How strong was the magnitude 4.3 earthquake near Ende, Indonesia?

The magnitude 4.3 earthquake that struck 67 km NW of Ende, Indonesia on July 14, 2023 at 21:06 UTC had a depth of 195.3 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 4.3 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 4.3 earthquake is an aftershock of the larger magnitude 5.0 mainshock that occurred earlier 54 km NNW of Ende, Indonesia. Aftershocks are smaller earthquakes triggered by stress changes from the mainshock.

Understanding This Data

Magnitude 4.3 earthquakes are often felt but rarely cause damage.

Learn more about magnitude →

Authoritative source: USGS event page (event ID: us7000kfuk). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2023, July 14, 2023). M4.3 Earthquake 67 km NW of Ende, IndonesiaJuly 14, 2023. Retrieved September 16, 2023 from https://www.earthquaketracker.org/earthquakes/event/us7000kfuk/