2.1

M2.1 Earthquake 5km S of San Juan Bautista, CAAugust 19, 2022

2022-08-19 18:00:55 UTC (2022-08-19) · approx. 10:00 AM UTC-8 local

MagnitudeM2.1(md)
Time18:00 UTC10:00 AM UTC-8
Depth6.8 kmshallow crustal
Coordinates36.802°, -121.541°
Felt by1DYFI response
Status✓ Reviewed by USGS

On August 19, 2022 at 18:00 UTC, a magnitude 2.1 shallow crustal earthquake struck 5km S of San Juan Bautista, CA, at a depth of 6.8 km and coordinates 36.8022°, -121.5407°.

Physical scale: An earthquake of magnitude 2.1 releases seismic energy equivalent to roughly 19.2 kg of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 16 m — a useful intuition for the size of the slip patch on the fault.

Map showing earthquake epicenter at 36.80°, -121.54°

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 M2.1 earthquake near 5km S of San Juan Bautista, CA

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

Earthquake Details

Magnitude
2.1 md
Depth
6.8 km
shallow crustal
Location
36.8022°N
-121.5407°E
Felt Reports
1
DYFI responses
Community Intensity
2.2
CDI from reports

Technical Information

Event ID
nc73769720
Event Type
earthquake
Status
✓ Reviewed
Significance
66
Stations Used
59
Azimuthal Gap
40.0°
Min Station Distance
0.032°
RMS Residual
0.17 sec
Last Updated
2022-08-20 09:30:16 UTC

Common Questions

How strong was the magnitude 2.1 earthquake near San Juan Bautista, CA?

The magnitude 2.1 earthquake that struck 5km S of San Juan Bautista, CA on August 19, 2022 at 18:00 UTC had a depth of 6.8 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 2.1 earthquakes can continue for several days and gradually diminish over time.

Understanding This Data

Magnitude 2.1 earthquakes are typically only recorded by instruments.

Learn more about magnitude →

Authoritative source: USGS event page (event ID: nc73769720). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2022, August 19, 2022). M2.1 Earthquake 5km S of San Juan Bautista, CAAugust 19, 2022. Retrieved August 20, 2022 from https://www.earthquaketracker.org/earthquakes/event/nc73769720/