M4.5 Earthquake near off the east coast of the United States — April 19, 2023
2023-04-19 16:07:01 UTC (2023-04-19) · approx. 11:07 AM UTC-5 local
Felt by 12 people across nearby locations.
On April 19, 2023 at 16:07 UTC, a magnitude 4.5 shallow crustal earthquake struck near off the east coast of the United States, at a depth of 10.0 km and coordinates 32.6203°, -70.8364°. This earthquake was detected by 120 seismic stations with excellent location accuracy and was assigned a USGS significance rating of 316, placing it among routine seismic activity.
Physical scale: An earthquake of magnitude 4.5 releases seismic energy equivalent to roughly 85 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 767 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 12 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
-70.8364°E
Technical Information
Common Questions
How strong was the magnitude 4.5 earthquake near off the east coast of the United States?
The magnitude 4.5 earthquake that struck near off the east coast of the United States on April 19, 2023 at 16:07 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 32.6203°, -70.8364°, which is near off the east coast of the United States.
Were there aftershocks?
Aftershock activity is monitored continuously by the USGS. Aftershock sequences from magnitude 4.5 earthquakes can continue for several days and gradually diminish over time.
Actions
Authoritative source: USGS event page (event ID: us6000k5k8). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2023, April 19, 2023). M4.5 Earthquake near off the east coast of the United States — April 19, 2023. Retrieved July 3, 2023 from https://www.earthquaketracker.org/earthquakes/event/us6000k5k8/