M4.2 Earthquake 8 km N of San Kamphaeng, Thailand — October 19, 2022
2022-10-19 21:36:33 UTC (2022-10-19) · approx. 4:36 AM UTC+7 local
Felt by 123 people across surrounding communities.
On October 19, 2022 at 21:36 UTC, a magnitude 4.2 shallow crustal earthquake struck 8 km N of San Kamphaeng, Thailand, at a depth of 5.4 km and coordinates 18.8243°, 99.1277°. This earthquake was detected by 14 seismic stations with excellent location accuracy and was assigned a USGS significance rating of 340, placing it among routine seismic activity.
Physical scale: An earthquake of magnitude 4.2 releases seismic energy equivalent to roughly 30 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 476 m — a useful intuition for the size of the slip patch on the fault.
Did You Feel It? — community-reported shaking
Aggregated felt-report intensity from 123 citizen responses to the USGS Did You Feel It? system. Each colored zone represents the average MMI from reports in that area.
Source: U.S. Geological Survey Did You Feel It?. View on USGS · submit your own report
Earthquake Details
99.1277°E
Technical Information
Common Questions
How strong was the magnitude 4.2 earthquake near San Kamphaeng, Thailand?
The magnitude 4.2 earthquake that struck 8 km N of San Kamphaeng, Thailand on October 19, 2022 at 21:36 UTC had a depth of 5.4 km. For context, this was a light earthquake commonly felt near the epicenter.
Where did the earthquake occur?
The earthquake epicenter was located at 18.8243°, 99.1277°, which is 8 km N of San Kamphaeng, Thailand.
Were there aftershocks?
Aftershock activity is monitored continuously by the USGS. Aftershock sequences from magnitude 4.2 earthquakes can continue for several days and gradually diminish over time.
Authoritative source: USGS event page (event ID: us6000iuyr). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2022, October 19, 2022). M4.2 Earthquake 8 km N of San Kamphaeng, Thailand — October 19, 2022. Retrieved November 17, 2023 from https://www.earthquaketracker.org/earthquakes/event/us6000iuyr/