4.7

M4.7 Earthquake 211 km NNW of Santa Cruz da Graciosa, PortugalMarch 6, 2022

2022-03-06 02:26:13 UTC (2022-03-06) · approx. 12:26 AM UTC-2 local

MagnitudeM4.7(mb)
Time02:26 UTC12:26 AM UTC-2
Depth10.0 kmshallow crustal
Coordinates40.738°, -29.231°
Felt byNo felt reports
Status✓ Reviewed by USGS

On March 6, 2022 at 02:26 UTC, a magnitude 4.7 shallow crustal earthquake struck 211 km NNW of Santa Cruz da Graciosa, Portugal, at a depth of 10.0 km and coordinates 40.7378°, -29.2308°.

Physical scale: An earthquake of magnitude 4.7 releases seismic energy equivalent to roughly 169 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 1.1 km — a useful intuition for the size of the slip patch on the fault.

Map showing earthquake epicenter at 40.74°, -29.23°

Earthquake Details

Magnitude
4.7 mb
Depth
10.0 km
shallow crustal
Location
40.7378°N
-29.2308°E

Technical Information

Event ID
us6000h2gv
Event Type
earthquake
Status
✓ Reviewed
Significance
340
Azimuthal Gap
61.0°
Min Station Distance
1.784°
RMS Residual
0.73 sec
Last Updated
2022-05-14 21:52:18 UTC

Common Questions

How strong was the magnitude 4.7 earthquake near Santa Cruz da Graciosa, Portugal?

The magnitude 4.7 earthquake that struck 211 km NNW of Santa Cruz da Graciosa, Portugal on March 6, 2022 at 02:26 UTC had a depth of 10.0 km. For context, this was a light earthquake commonly felt near the epicenter.

Where did the earthquake occur?

The earthquake epicenter was located at 40.7378°, -29.2308°, which is 211 km NNW of Santa Cruz da Graciosa, Portugal.

Were there aftershocks?

Aftershock activity is monitored continuously by the USGS. Aftershock sequences from magnitude 4.7 earthquakes can continue for several days and gradually diminish over time.

Authoritative source: USGS event page (event ID: us6000h2gv). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2022, March 6, 2022). M4.7 Earthquake 211 km NNW of Santa Cruz da Graciosa, PortugalMarch 6, 2022. Retrieved May 14, 2022 from https://www.earthquaketracker.org/earthquakes/event/us6000h2gv/