Earthquakes on August 3, 2023
234
EARTHQUAKES on August 3, 2023
24-hour UTC period · USGS data
LARGEST: M5.9 — 266 km S of Burica, Panama
7 km deep · 3 people felt it
Normal activitycompared to daily average (~250/day)
Magnitude Breakdown
M5.0+
3
M4.0–4.9
29
M3.0–3.9
10
M2.0–2.9
46
M1.0–1.9
146
Activity Summary
234
Total earthquakes
~250
Daily average
Normal
Activity level
3
M5.0+ events
Geographic Breakdown
By US State
Top Countries (International)
New Caledonia
2
South Sandwich Islands
2
Northern Mariana Islands
1
Significant Earthquakes (M4.5+)
5.9
266 km S of Burica, Panama
01:25 UTC · 7.0 km deep
Felt by 3
5.6
85 km SSW of Sand Point, Alaska
19:33 UTC · 35.0 km deep
Felt by 12
5.1
Colombia
22:09 UTC · 161.1 km deep
Felt by 5
4.9
227 km ENE of Levuka, Fiji
20:31 UTC · 549.1 km deep
4.9
Kermadec Islands, New Zealand
14:08 UTC · 53.2 km deep
4.8
southeast of the Loyalty Islands
22:44 UTC · 10.0 km deep
4.8
Nicobar Islands, India region
11:39 UTC · 10.0 km deep
4.7
151 km NW of Tobelo, Indonesia
08:19 UTC · 21.8 km deep
Earthquake Map — August 3, 2023
All Earthquakes — August 3, 2023
Showing 30 of 88 (filtered from 234)
(Filtered to M2.0+. Change the magnitude filter to see smaller events.)
| Time ↓ | Mag ↕ | Location ↕ | Depth ↕ | Felt ↕ | MMI | Alert | Status | Details |
|---|---|---|---|---|---|---|---|---|
2023-08-03 2023-08-03 23:57:34 UTC | 4.3mb | south of the Kermadec Islands -32.845°, -178.533° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
On August 3, 2023, worldwide seismic activity registered a magnitude 4.3 earthquake south of the Kermadec Islands at 23:57 UTC. Coming 4 hours after a magnitude 4.6 earthquake in the immediate vicinity, it is most likely an aftershock of that larger rupture. See the M4.3 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-08-03 2023-08-03 23:15:39 UTC | 4.6mb | 36 km N of Adi Keyh, Eritrea 15.175°, 39.395° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
August 3, 2023 brought a magnitude 4.6 earthquake 36 km N of Adi Keyh, Eritrea, logged at 23:15 UTC. The event was offshore. See the M4.6 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-08-03 2023-08-03 23:11:38 UTC | 2.2ml | 49 km SSW of Skwentna, Alaska 61.554°, -151.589° | 82.2 km | - | - | - | ✓ Reviewed | USGS → |
On August 3, 2023 at 23:11 UTC, a magnitude 2.2 earthquake struck 49 km SSW of Skwentna, Alaska. See the M2.2 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-08-03 2023-08-03 23:07:12 UTC | 4.1mb | off the coast of Oregon 44.366°, -129.951° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
On August 3, 2023 at 23:07 UTC, a magnitude 4.1 earthquake struck near off the coast of Oregon. See the M4.1 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-08-03 2023-08-03 22:47:37 UTC | 2.9ml | 167 km SSE of Chignik, Alaska 55.049°, -156.908° | 24.4 km | - | - | - | ✓ Reviewed | USGS → |
Seismographs logged a magnitude 2.9 earthquake 167 km SSE of Chignik, Alaska with origin time 22:47 UTC on August 3, 2023. See the M2.9 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-08-03 2023-08-03 22:44:43 UTC | 4.8mb | southeast of the Loyalty Islands -23.341°, 170.948° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
The USGS recorded this magnitude 4.8 earthquake southeast of the Loyalty Islands at 22:44 UTC on August 3, 2023. See the M4.8 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-08-03 2023-08-03 22:09:36 UTC | 5.1mww | Colombia 3.513°, -76.236° | 161.1 km | 5 | - | - | ✓ Reviewed | USGS → |
Seismographs logged a magnitude 5.1 earthquake near Colombia with origin time 22:09 UTC on August 3, 2023. See the M5.1 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-08-03 2023-08-03 22:03:59 UTC | 3.1ml | 33 km NW of Atka, Alaska 52.404°, -174.561° | 168.6 km | - | - | - | ✓ Reviewed | USGS → |
At 22:03 UTC on August 3, 2023, a magnitude 3.1 tremor occurred 33 km NW of Atka, Alaska. The event was offshore. See the M3.1 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-08-03 2023-08-03 22:03:10 UTC | 2.3md | 17 km NW of Fall River Mills, CA 41.104°, -121.593° | 6.9 km | - | - | - | ✓ Reviewed | USGS → |
Seismographs logged a magnitude 2.3 earthquake 17 km NW of Fall River Mills, CA with origin time 22:03 UTC on August 3, 2023. The event was offshore. See the M2.3 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-08-03 2023-08-03 22:02:50 UTC | 4.5mb | Kermadec Islands, New Zealand -30.618°, -177.827° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
The USGS recorded this magnitude 4.5 earthquake near Kermadec Islands, New Zealand at 22:02 UTC on August 3, 2023. See the M4.5 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-08-03 2023-08-03 22:01:05 UTC | 2.3md | 16 km NW of Fall River Mills, CA 41.099°, -121.594° | 5.0 km | - | - | - | ✓ Reviewed | USGS → |
This magnitude 2.3 event was detected 16 km NW of Fall River Mills, CA on August 3, 2023, with origin time 22:01 UTC. The event was offshore. See the M2.3 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-08-03 2023-08-03 21:56:48 UTC | 3.9ml | 51 km E of Pedro Bay, Alaska 59.732°, -153.195° | 106.4 km | - | - | - | ✓ Reviewed | USGS → |
Seismographs logged a magnitude 3.9 earthquake 51 km E of Pedro Bay, Alaska with origin time 21:56 UTC on August 3, 2023. The event was offshore. See the M3.9 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-08-03 2023-08-03 21:24:14 UTC | 2.0ml | 101 km SSE of Sand Point, Alaska 54.532°, -159.743° | 21.3 km | - | - | - | ✓ Reviewed | USGS → |
At 21:24 UTC on August 3, 2023, a magnitude 2.0 tremor occurred 101 km SSE of Sand Point, Alaska. It arrived roughly 9 hours after a larger magnitude 2.2 mainshock in the same 20 km area, placing it within the typical aftershock window. See the M2.0 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-08-03 2023-08-03 21:10:03 UTC | 4.6mb | south of the Kermadec Islands -32.844°, -178.299° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
On August 3, 2023 at 21:10 UTC, a magnitude 4.6 earthquake struck south of the Kermadec Islands. See the M4.6 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-08-03 2023-08-03 21:05:57 UTC | 4.5mb | 134 km SSE of Kokopo, Papua New Guinea -5.533°, 152.524° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
This magnitude 4.5 event was detected 134 km SSE of Kokopo, Papua New Guinea on August 3, 2023, with origin time 21:05 UTC. See the M4.5 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-08-03 2023-08-03 20:51:55 UTC | 2.8ml | 252 km S of Akhiok, Alaska 54.688°, -154.550° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
At 20:51 UTC on August 3, 2023, a magnitude 2.8 tremor occurred 252 km S of Akhiok, Alaska. The event was offshore. See the M2.8 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-08-03 2023-08-03 20:46:27 UTC | 2.3ml | 12 km N of Dillon, Montana 45.332°, -112.623° | 11.2 km | - | - | - | ✓ Reviewed | USGS → |
On August 3, 2023, worldwide seismic activity registered a magnitude 2.3 earthquake 12 km N of Dillon, Montana at 20:46 UTC. The event was offshore. See the M2.3 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-08-03 2023-08-03 20:31:22 UTC | 4.9mb | 227 km ENE of Levuka, Fiji -17.506°, -178.614° | 549.1 km | - | - | - | ✓ Reviewed | USGS → |
On August 3, 2023, worldwide seismic activity registered a magnitude 4.9 earthquake 227 km ENE of Levuka, Fiji at 20:31 UTC. This deep-focus earthquake originated far below the brittle crust, deep inside the mantle. See the M4.9 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-08-03 2023-08-03 20:26:40 UTC | 4.6mb | south of the Kermadec Islands -32.757°, -178.424° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 4.6 earthquake was recorded south of the Kermadec Islands on August 3, 2023 at 20:26 UTC. See the M4.6 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-08-03 2023-08-03 20:25:35 UTC | 2.2md | Island of Hawaii, Hawaii 19.974°, -155.418° | 38.0 km | - | - | - | ✓ Reviewed | USGS → |
August 3, 2023 brought a magnitude 2.2 earthquake near Island of Hawaii, Hawaii, logged at 20:25 UTC. See the M2.2 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-08-03 2023-08-03 19:33:50 UTC | 5.6mww | 85 km SSW of Sand Point, Alaska 54.639°, -161.072° | 35.0 km | 12 | III | green | ✓ Reviewed | USGS → |
A magnitude 5.6 earthquake was recorded 85 km SSW of Sand Point, Alaska on August 3, 2023 at 19:33 UTC. A tsunami evaluation was automatically initiated given the magnitude and location. The USGS PAGER system assigned a green alert level for this event, signalling no significant casualties or damage expected. See the M5.6 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-08-03 2023-08-03 19:21:27 UTC | 3.0ml | 50 km W of Atka, Alaska 52.280°, -174.929° | 142.8 km | - | - | - | ✓ Reviewed | USGS → |
August 3, 2023 brought a magnitude 3.0 earthquake 50 km W of Atka, Alaska, logged at 19:21 UTC. The event was offshore. See the M3.0 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-08-03 2023-08-03 18:26:04 UTC | 3.0md | Puerto Rico region 18.762°, -66.344° | 25.5 km | 1 | - | - | ✓ Reviewed | USGS → |
A magnitude 3.0 seismic event took place in the Puerto Rico region on August 3, 2023 at 18:26 UTC. See the M3.0 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-08-03 2023-08-03 18:25:58 UTC | 4.2mb | Kermadec Islands region -27.672°, -179.633° | 413.6 km | - | - | - | ✓ Reviewed | USGS → |
This magnitude 4.2 event was detected in the Kermadec Islands region on August 3, 2023, with origin time 18:25 UTC. This deep-focus earthquake originated far below the brittle crust, deep inside the mantle. See the M4.2 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-08-03 2023-08-03 18:05:53 UTC | 4.5mb | 228 km NNE of Palu, Indonesia 1.110°, 120.294° | 646.5 km | - | - | - | ✓ Reviewed | USGS → |
Reports of a magnitude 4.5 earthquake 228 km NNE of Palu, Indonesia came in on August 3, 2023 at 18:05 UTC. This is the deepest earthquake in the current dataset — a deep-focus event. See the M4.5 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-08-03 2023-08-03 17:57:14 UTC | 3.2mb | 75 km W of Atka, Alaska 52.121°, -175.304° | 122.8 km | - | - | - | ✓ Reviewed | USGS → |
On August 3, 2023, worldwide seismic activity registered a magnitude 3.2 earthquake 75 km W of Atka, Alaska at 17:57 UTC. The event was offshore. See the M3.2 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-08-03 2023-08-03 17:49:12 UTC | 4.5mb | South Sandwich Islands region -59.540°, -26.115° | 35.0 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 4.5 seismic event took place in the South Sandwich Islands region on August 3, 2023 at 17:49 UTC. See the M4.5 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-08-03 2023-08-03 17:20:29 UTC | 2.2ml | 44 km NNW of Adak, Alaska 52.246°, -176.870° | 136.6 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 2.2 earthquake was recorded 44 km NNW of Adak, Alaska on August 3, 2023 at 17:20 UTC. See the M2.2 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-08-03 2023-08-03 16:58:48 UTC | 2.6ml | 81 km W of Karluk, Alaska 57.662°, -155.807° | 100.9 km | - | - | - | ✓ Reviewed | USGS → |
At 16:58 UTC on August 3, 2023, a magnitude 2.6 tremor occurred 81 km W of Karluk, Alaska. The event was offshore. See the M2.6 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-08-03 2023-08-03 16:46:28 UTC | 4.4mb | southeast of the Loyalty Islands -23.016°, 170.444° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 4.4 earthquake was recorded southeast of the Loyalty Islands on August 3, 2023 at 16:46 UTC. See the M4.4 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
Legend:
Mag: Magnitude (magType = ml, mb, mw, etc.)
Felt: Number of DYFI felt reports
MMI: Modified Mercalli Intensity (I-X+)
Alert: PAGER alert level
Depth: Shallow (<70km), Intermediate, Deep (>300km)
Status: Auto = preliminary, Reviewed = verified by seismologist
Click any row to see additional technical details.
About This Page
This page shows all earthquakes recorded by the USGS Earthquake Hazards Program during the 24-hour UTC period on August 3, 2023. Data includes all events of magnitude 1.0 or greater. Past earthquake data is considered final after review by USGS seismologists.