4.4

M4.4 Earthquake 70 km WNW of Merredin, AustraliaAugust 18, 2024

2024-08-18 18:33:40 UTC (2024-08-18) · approx. 2:33 AM UTC+8 local

MagnitudeM4.4(mb)
Time18:33 UTC2:33 AM UTC+8
Depth9.5 kmshallow crustal
Coordinates-31.184°, 117.615°
Felt by3DYFI responses
Status✓ Reviewed by USGS

On August 18, 2024 at 18:33 UTC, a magnitude 4.4 shallow crustal earthquake struck 70 km WNW of Merredin, Australia, at a depth of 9.5 km and coordinates -31.1845°, 117.6154°.

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 -31.18°, 117.62°

Did You Feel It? — community-reported shaking

Aggregated felt-report intensity from 3 citizen responses to the USGS Did You Feel It? system. Each colored zone represents the average MMI from reports in that area.

USGS DYFI community-reported intensity map for the M4.4 earthquake near 70 km WNW of Merredin, Australia

Source: U.S. Geological Survey Did You Feel It?. View on USGS · submit your own report

Earthquake Details

Magnitude
4.4 mb
Depth
9.5 km
shallow crustal
Location
-31.1845°N
117.6154°E
Felt Reports
3
DYFI responses
Community Intensity
3.1
CDI from reports

Technical Information

Event ID
us7000n7tq
Event Type
earthquake
Status
✓ Reviewed
Significance
299
Stations Used
32
Azimuthal Gap
92.0°
Min Station Distance
1.767°
RMS Residual
0.56 sec
Last Updated
2024-10-26 15:49:34 UTC

Common Questions

How strong was the magnitude 4.4 earthquake near Merredin, Australia?

The magnitude 4.4 earthquake that struck 70 km WNW of Merredin, Australia on August 18, 2024 at 18:33 UTC had a depth of 9.5 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: us7000n7tq). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2024, August 18, 2024). M4.4 Earthquake 70 km WNW of Merredin, AustraliaAugust 18, 2024. Retrieved October 26, 2024 from https://www.earthquaketracker.org/earthquakes/event/us7000n7tq/