4.6

M4.6 Earthquake 7 km NNW of Gura Teghii, RomaniaDecember 3, 2023

2023-12-03 22:05:48 UTC (2023-12-03) · approx. 12:05 AM UTC+2 local

Felt by 34 people across nearby locations.

MagnitudeM4.6(mb)
Time22:05 UTC12:05 AM UTC+2
Depth138.8 kmintermediate depth
Coordinates45.542°, 26.376°
Felt by34DYFI responses
Status✓ Reviewed by USGS

On December 3, 2023 at 22:05 UTC, a magnitude 4.6 intermediate depth earthquake struck 7 km NNW of Gura Teghii, Romania, at a depth of 138.8 km and coordinates 45.5417°, 26.3762°. This earthquake was detected by 136 seismic stations with excellent location accuracy and was assigned a USGS significance rating of 339, placing it among routine seismic activity.

Physical scale: An earthquake of magnitude 4.6 releases seismic energy equivalent to roughly 120 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 899 m — a useful intuition for the size of the slip patch on the fault.

Map showing earthquake epicenter at 45.54°, 26.38°

Did You Feel It? — community-reported shaking

Aggregated felt-report intensity from 34 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 M4.6 earthquake near 7 km NNW of Gura Teghii, Romania

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

Earthquake Details

Magnitude
4.6 mb
Depth
138.8 km
intermediate depth
Location
45.5417°N
26.3762°E
Felt Reports
34
DYFI responses
Community Intensity
4.1
CDI from reports

Technical Information

Event ID
us7000lfzn
Event Type
earthquake
Status
✓ Reviewed
Significance
339
Stations Used
136
Azimuthal Gap
46.0°
Min Station Distance
0.307°
RMS Residual
0.66 sec
Last Updated
2024-04-06 17:52:18 UTC

Common Questions

How strong was the magnitude 4.6 earthquake near Gura Teghii, Romania?

The magnitude 4.6 earthquake that struck 7 km NNW of Gura Teghii, Romania on December 3, 2023 at 22:05 UTC had a depth of 138.8 km. For context, this was a light earthquake commonly felt near the epicenter.

Where did the earthquake occur?

The earthquake epicenter was located at 45.5417°, 26.3762°, which is 7 km NNW of Gura Teghii, Romania.

Were there aftershocks?

Aftershock activity is monitored continuously by the USGS. Aftershock sequences from magnitude 4.6 earthquakes can continue for several days and gradually diminish over time.

Authoritative source: USGS event page (event ID: us7000lfzn). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2023, December 3, 2023). M4.6 Earthquake 7 km NNW of Gura Teghii, RomaniaDecember 3, 2023. Retrieved April 6, 2024 from https://www.earthquaketracker.org/earthquakes/event/us7000lfzn/