M 6.6 - 278 km NNE of Codrington, Antigua and Barbuda
July 10, 2023 at 20:28:26 UTC
Depth: 14.00 km (Shallow)
Key Takeaway
This strong earthquake (M6.6) occurred 2 years ago near 278 km NNE of Codrington, Antigua and Barbuda, at a depth of 14.00 km (shallow). It was felt by 417 people. A tsunami warning was issued for this event.
Strong
PAGER Alert
Tsunami
Felt Reports
Event Details
| Magnitude | 6.6 mww |
| Depth | 14.00 km (Shallow) |
| Location | 20.0634N, 61.1021W |
| Community Intensity | VI (Strong) |
| Mercalli Intensity | III (Weak) |
| Felt Reports (DYFI) | 417 people |
| Alert Level (PAGER) | Green — No fatalities or damage expected |
| Tsunami Warning | Yes |
| Significance | 920 / 3000 |
| Status | Reviewed |
| Network | us |
| USGS Event Page | View on USGS → |
Frequently Asked Questions
What was the magnitude of this earthquake?
This earthquake had a magnitude of 6.6, classified as "Strong". Strong earthquakes can cause severe damage in areas several tens of miles across.
How deep was this earthquake?
This earthquake occurred at a depth of 14.00 km, classified as "Shallow". Shallow earthquakes tend to cause more damage at the surface because the energy has less distance to travel before reaching buildings and infrastructure.
Where exactly did this earthquake occur?
This earthquake occurred near 278 km NNE of Codrington, Antigua and Barbuda, at coordinates 20.0634N, 61.1021W. The location is determined by analyzing seismic wave arrival times at multiple monitoring stations.
Were there aftershocks associated with this event?
Aftershock data for this specific event can be explored by viewing nearby recent earthquakes listed below on this page. Aftershocks are smaller earthquakes that occur in the same area following a larger event, and they can continue for days, weeks, or even months depending on the original earthquake's magnitude.
What does the magnitude of this earthquake mean in practical terms?
A magnitude 6.6 earthquake is classified as "Strong" — these can cause significant damage in populated areas, particularly to older or poorly constructed buildings.
Nearby Recent Earthquakes
250 km NNE of Codrington, Antigua and Barbuda
2 years ago · 9.92 km deep
270 km NNE of Codrington, Antigua and Barbuda
2 years ago · 10.78 km deep
North Atlantic Ocean
2 years ago · 10.00 km deep
North Atlantic Ocean
2 years ago · 10.00 km deep
Leeward Islands
2 years ago · 43.00 km deep
More Earthquakes in Antigua and Barbuda
37 km ENE of Codrington, Antigua and Barbuda
4 months ago · 26.46 km deep
32 km ENE of Codrington, Antigua and Barbuda
7 months ago · 35.00 km deep
62 km ESE of Codrington, Antigua and Barbuda
7 months ago · 22.98 km deep
27 km W of Codrington, Antigua and Barbuda
10 months ago · 57.83 km deep
37 km ENE of Codrington, Antigua and Barbuda
1 year ago · 24.46 km deep
41 km ENE of Codrington, Antigua and Barbuda
1 year ago · 25.30 km deep
39 km ENE of Codrington, Antigua and Barbuda
1 year ago · 24.20 km deep
36 km ENE of Codrington, Antigua and Barbuda
1 year ago · 28.03 km deep
More M6.0-7.0 Earthquakes
181 km SE of Kirakira, Solomon Islands
1 day ago · 8.68 km deep
224 km ESE of Attu Station, Alaska
2 days ago · 10.00 km deep
62 km SE of Sinabang, Indonesia
4 days ago · 18.00 km deep
Volcano Islands, Japan region
5 days ago · 20.00 km deep
Fiji region
6 days ago · 596.32 km deep
93 km SW of Nikolski, Alaska
1 week ago · 14.00 km deep
south of the Fiji Islands
1 week ago · 653.79 km deep
82 km ESE of Ozernovskiy, Russia
2 weeks ago · 43.00 km deep
Data from the USGS Earthquake Hazards Program (ComCat). QuakeScan is not affiliated with the USGS. Event details may be updated as new data becomes available.