2.0

M2.0 Earthquake 14km W of Lakeport, CA — December 17, 2020

2020-12-17 18:52:37 UTC (2020-12-17) · approx. 10:52 AM UTC-8 local

MagnitudeM2.0(md)
Time18:52 UTC≈ 10:52 AM UTC-8
Depth3.8 kmshallow crustal
Coordinates39.028°, -123.072°
Felt by1DYFI response
Status✓ Reviewed by USGS

On December 17, 2020 at 18:52 UTC, a magnitude 2.0 shallow crustal earthquake struck 14km W of Lakeport, CA, at a depth of 3.8 km and coordinates 39.0282°, -123.0723°.

Physical scale: An earthquake of magnitude 2.0 releases seismic energy equivalent to roughly 15.6 kg of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 15 m — a useful intuition for the size of the slip patch on the fault.

Map showing earthquake epicenter at 39.03°, -123.07°

Did You Feel It? — community-reported shaking

Aggregated felt-report intensity from 1 citizen response 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 M2.0 earthquake near 14km W of Lakeport, CA

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

Earthquake Details

Magnitude
2.0 md
Depth
3.8 km
shallow crustal
Location
39.0282°N
-123.0723°E
Felt Reports
1
DYFI responses
Community Intensity
2.0
CDI from reports

Technical Information

Event ID
nc73499455
Event Type
earthquake
Status
✓ Reviewed
Significance
62
Stations Used
36
Azimuthal Gap
81.0°
Min Station Distance
0.035°
RMS Residual
0.12 sec
Last Updated
2020-12-29 02:31:04 UTC

Common Questions

How strong was the magnitude 2.0 earthquake near Lakeport, CA?

The magnitude 2.0 earthquake that struck 14km W of Lakeport, CA on December 17, 2020 at 18:52 UTC had a depth of 3.8 km. For context, this was a minor earthquake typically detected only by instruments.

Were there aftershocks?

Aftershock activity is monitored continuously by the USGS. Aftershock sequences from magnitude 2.0 earthquakes can continue for several days and gradually diminish over time.

Understanding This Data

Magnitude 2.0 earthquakes are typically only recorded by instruments.

Learn more about magnitude →

Authoritative source: USGS event page (event ID: nc73499455). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2020, December 17, 2020). M2.0 Earthquake 14km W of Lakeport, CA — December 17, 2020. Retrieved December 29, 2020 from https://www.earthquaketracker.org/earthquakes/event/nc73499455/