Earthquakes on October 7, 2023
306
EARTHQUAKES on October 7, 2023
24-hour UTC period · USGS data
52 km deep · 27 people felt it
Elevated activitycompared to daily average (~250/day)
Magnitude Breakdown
M5.0+
17
M4.0–4.9
56
M3.0–3.9
13
M2.0–2.9
43
M1.0–1.9
177
Activity Summary
306
Total earthquakes
~250
Daily average
Elevated
Activity level
17
M5.0+ events
Geographic Breakdown
By US State
Top Countries (International)
Significant Earthquakes (M4.5+)
6.9
48 km SE of Madang, Papua New Guinea
08:40 UTC · 52.0 km deep
Felt by 27
6.7
54 km SE of Madang, Papua New Guinea
08:34 UTC · 55.0 km deep
6.3
25 km NNE of Zindah Jān, Afghanistan
07:12 UTC · 8.0 km deep
Felt by 11
6.3
32 km NNE of Zindah Jān, Afghanistan
06:41 UTC · 14.0 km deep
5.9
35 km NNW of Herāt, Afghanistan
07:40 UTC · 12.5 km deep
Felt by 3
5.9
2 km S of Paso Real de Sarabia, Mexico
05:06 UTC · 108.0 km deep
Felt by 112
5.7
49 km SSE of Madang, Papua New Guinea
16:20 UTC · 63.9 km deep
Felt by 2
5.6
43 km SE of Madang, Papua New Guinea
13:10 UTC · 31.0 km deep
Felt by 1
Earthquake Map — October 7, 2023
All Earthquakes — October 7, 2023
Showing 30 of 129 (filtered from 306)
(Filtered to M2.0+. Change the magnitude filter to see smaller events.)
| Time ↓ | Mag ↕ | Location ↕ | Depth ↕ | Felt ↕ | MMI | Alert | Status | Details |
|---|---|---|---|---|---|---|---|---|
2023-10-07 2023-10-07 23:57:40 UTC | 2.5md | 1 km S of Maria Antonia, Puerto Rico 17.963°, -66.889° | 10.2 km | - | - | - | ✓ Reviewed | USGS → |
October 7, 2023 brought a magnitude 2.5 earthquake 1 km S of Maria Antonia, Puerto Rico, logged at 23:57 UTC. It arrived roughly 4 hours after a larger magnitude 4.0 mainshock in the same 20 km area, placing it within the typical aftershock window. The event was offshore. See the M2.5 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-10-07 2023-10-07 23:57:26 UTC | 4.5mb | 290 km SSE of Port Blair, India 9.293°, 93.880° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
At 23:57 UTC on October 7, 2023, a magnitude 4.5 tremor occurred 290 km SSE of Port Blair, India. This event falls inside the aftershock decay of a nearby magnitude 4.6 earthquake that occurred about 2 hours earlier. See the M4.5 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-10-07 2023-10-07 23:40:37 UTC | 2.5md | 3 km SSW of Guánica, Puerto Rico 17.946°, -66.918° | 14.7 km | - | - | - | ✓ Reviewed | USGS → |
On October 7, 2023 at 23:40 UTC, a magnitude 2.5 earthquake struck 3 km SSW of Guánica, Puerto Rico. This event falls inside the aftershock decay of a nearby magnitude 4.0 earthquake that occurred about 4 hours earlier. See the M2.5 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-10-07 2023-10-07 23:32:19 UTC | 4.3mb | Izu Islands, Japan region 31.130°, 141.813° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 4.3 seismic event took place in the Izu Islands, Japan region on October 7, 2023 at 23:32 UTC. It arrived roughly 13 hours after a larger magnitude 5.0 mainshock in the same 20 km area, placing it within the typical aftershock window. See the M4.3 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-10-07 2023-10-07 23:18:02 UTC | 4.2mb | 34 km SSW of Pondaguitan, Philippines 6.090°, 126.033° | 145.5 km | - | - | - | ✓ Reviewed | USGS → |
Reports of a magnitude 4.2 earthquake 34 km SSW of Pondaguitan, Philippines came in on October 7, 2023 at 23:18 UTC. See the M4.2 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-10-07 2023-10-07 23:16:57 UTC | 3.3md | 28 km S of Charlotte Amalie, U.S. Virgin Islands 18.093°, -64.981° | 8.3 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 3.3 seismic event took place 28 km S of Charlotte Amalie, U.S. Virgin Islands on October 7, 2023 at 23:16 UTC. The event was offshore. See the M3.3 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-10-07 2023-10-07 23:03:19 UTC | 3.0ml | 19 km SW of Point Possession, Alaska 60.784°, -150.900° | 14.9 km | - | III | - | ✓ Reviewed | USGS → |
On October 7, 2023, worldwide seismic activity registered a magnitude 3.0 earthquake 19 km SW of Point Possession, Alaska at 23:03 UTC. The event was offshore. See the M3.0 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-10-07 2023-10-07 23:01:40 UTC | 2.6ml | 59 km E of Juneau, Alaska 58.363°, -133.416° | 0.0 km | - | - | - | ✓ Reviewed | USGS → |
This magnitude 2.6 event was detected 59 km E of Juneau, Alaska on October 7, 2023, with origin time 23:01 UTC. It arrived roughly 11 hours after a larger magnitude 2.7 mainshock in the same 20 km area, placing it within the typical aftershock window. This very shallow event was close enough to the surface that even modest magnitudes can produce significant local shaking. See the M2.6 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-10-07 2023-10-07 22:55:08 UTC | 2.3md | 7 km SE of La Parguera, Puerto Rico 17.934°, -66.990° | 9.7 km | - | - | - | ✓ Reviewed | USGS → |
On October 7, 2023, worldwide seismic activity registered a magnitude 2.3 earthquake 7 km SE of La Parguera, Puerto Rico at 22:55 UTC. This event falls inside the aftershock decay of a nearby magnitude 4.0 earthquake that occurred about 3 hours earlier. The event was offshore. See the M2.3 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-10-07 2023-10-07 22:49:46 UTC | 2.1ml | 48 km WSW of Nikolski, Alaska 52.824°, -169.562° | 9.7 km | - | - | - | ✓ Reviewed | USGS → |
At 22:49 UTC on October 7, 2023, a magnitude 2.1 tremor occurred 48 km WSW of Nikolski, Alaska. See the M2.1 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-10-07 2023-10-07 22:47:30 UTC | 3.9md | Dominican Republic region 19.675°, -68.831° | 15.0 km | - | - | - | ✓ Reviewed | USGS → |
On October 7, 2023, worldwide seismic activity registered a magnitude 3.9 earthquake in the Dominican Republic region at 22:47 UTC. See the M3.9 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-10-07 2023-10-07 22:39:23 UTC | 5.1mb | 48 km SSE of Madang, Papua New Guinea -5.638°, 145.929° | 63.0 km | 2 | - | - | ✓ Reviewed | USGS → |
On October 7, 2023, worldwide seismic activity registered a magnitude 5.1 earthquake 48 km SSE of Madang, Papua New Guinea at 22:39 UTC. This event falls inside the aftershock decay of a nearby magnitude 5.7 earthquake that occurred about 6 hours earlier. See the M5.1 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-10-07 2023-10-07 22:01:48 UTC | 4.3mb | 12 km SW of Çelikhan, Turkey 37.954°, 38.128° | 10.0 km | 1 | - | - | ✓ Reviewed | USGS → |
October 7, 2023 brought a magnitude 4.3 earthquake 12 km SW of Çelikhan, Turkey, logged at 22:01 UTC. The event was offshore. See the M4.3 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-10-07 2023-10-07 21:57:55 UTC | 4.0mb | 38 km ENE of Noda, Japan 40.238°, 142.238° | 56.5 km | - | - | - | ✓ Reviewed | USGS → |
On October 7, 2023 at 21:57 UTC, a magnitude 4.0 earthquake struck 38 km ENE of Noda, Japan. This event falls inside the aftershock decay of a nearby magnitude 5.1 earthquake that occurred about 8 hours earlier. See the M4.0 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-10-07 2023-10-07 21:50:49 UTC | 2.1ml | Southern Alaska 61.129°, -150.224° | 43.9 km | - | - | - | ✓ Reviewed | USGS → |
The USGS recorded this magnitude 2.1 earthquake near Southern Alaska at 21:50 UTC on October 7, 2023. See the M2.1 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-10-07 2023-10-07 21:49:41 UTC | 4.6mb | 293 km SSE of Port Blair, India 9.255°, 93.858° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 4.6 seismic event took place 293 km SSE of Port Blair, India on October 7, 2023 at 21:49 UTC. See the M4.6 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-10-07 2023-10-07 20:14:40 UTC | 3.0md | 7 km SSW of Guánica, Puerto Rico 17.908°, -66.928° | 13.4 km | - | - | - | ✓ Reviewed | USGS → |
At 20:14 UTC on October 7, 2023, a magnitude 3.0 tremor occurred 7 km SSW of Guánica, Puerto Rico. It arrived roughly 1 hours after a larger magnitude 4.0 mainshock in the same 20 km area, placing it within the typical aftershock window. See the M3.0 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-10-07 2023-10-07 20:07:38 UTC | 4.4mb | 72 km NE of Kainantu, Papua New Guinea -5.750°, 146.241° | 76.1 km | - | - | - | ✓ Reviewed | USGS → |
On October 7, 2023 at 20:07 UTC, a magnitude 4.4 earthquake struck 72 km NE of Kainantu, Papua New Guinea. This event falls inside the aftershock decay of a nearby magnitude 5.2 earthquake that occurred about 6 hours earlier. The event was offshore. See the M4.4 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-10-07 2023-10-07 20:01:10 UTC | 3.3md | 9 km SSW of Guánica, Puerto Rico 17.887°, -66.927° | 13.7 km | - | - | - | ✓ Reviewed | USGS → |
On October 7, 2023 at 20:01 UTC, a magnitude 3.3 earthquake struck 9 km SSW of Guánica, Puerto Rico. Coming 1 hours after a magnitude 4.0 earthquake in the immediate vicinity, it is most likely an aftershock of that larger rupture. See the M3.3 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-10-07 2023-10-07 19:52:47 UTC | 4.0md | Puerto Rico region 17.916°, -66.912° | 8.0 km | 13 | II | green | ✓ Reviewed | USGS → |
October 7, 2023 brought a magnitude 4.0 earthquake in the Puerto Rico region, logged at 19:52 UTC. In the 72 hours after this event, the USGS recorded 5 smaller earthquakes within 20 km, consistent with an ongoing aftershock sequence rooted here. The USGS PAGER system assigned a green alert level for this event, signalling no significant casualties or damage expected. See the M4.0 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-10-07 2023-10-07 18:49:53 UTC | 2.1md | Island of Hawaii, Hawaii 19.398°, -155.290° | 2.8 km | - | - | - | Auto | USGS → |
On October 7, 2023, worldwide seismic activity registered a magnitude 2.1 earthquake near Island of Hawaii, Hawaii at 18:49 UTC. Coming 19 hours after a magnitude 2.4 earthquake in the immediate vicinity, it is most likely an aftershock of that larger rupture. This very shallow event was close enough to the surface that even modest magnitudes can produce significant local shaking. See the M2.1 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-10-07 2023-10-07 18:32:54 UTC | 4.9mb | 113 km SE of Modisi, Indonesia -0.294°, 125.135° | 39.7 km | - | - | - | ✓ Reviewed | USGS → |
Reports of a magnitude 4.9 earthquake 113 km SE of Modisi, Indonesia came in on October 7, 2023 at 18:32 UTC. The event was offshore. See the M4.9 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-10-07 2023-10-07 18:32:23 UTC | 4.2mb | 32 km SSE of Qarah Bāgh, Afghanistan 34.674°, 61.917° | 9.8 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 4.2 seismic event took place 32 km SSE of Qarah Bāgh, Afghanistan on October 7, 2023 at 18:32 UTC. This event falls inside the aftershock decay of a nearby magnitude 6.3 earthquake that occurred about 11 hours earlier. See the M4.2 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-10-07 2023-10-07 18:07:59 UTC | 2.3ml | 5 km S of Bradley, Oklahoma 34.825°, -97.719° | 14.2 km | - | - | - | ✓ Reviewed | USGS → |
Reports of a magnitude 2.3 earthquake 5 km S of Bradley, Oklahoma came in on October 7, 2023 at 18:07 UTC. The event was offshore. See the M2.3 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-10-07 2023-10-07 18:02:07 UTC | 3.1ml | 31 km SSE of Wright, Wyoming 43.474°, -105.394° | 0.0 km | - | - | - | ✓ Reviewed | USGS → |
Seismographs logged a magnitude 3.1 earthquake 31 km SSE of Wright, Wyoming with origin time 18:02 UTC on October 7, 2023. This very shallow event was close enough to the surface that even modest magnitudes can produce significant local shaking. See the M3.1 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-10-07 2023-10-07 17:57:19 UTC | 4.4mb | 54 km SW of Ollagüe, Chile -21.620°, -68.564° | 139.2 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 4.4 earthquake was recorded 54 km SW of Ollagüe, Chile on October 7, 2023 at 17:57 UTC. The event was offshore. See the M4.4 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-10-07 2023-10-07 17:42:09 UTC | 3.0ml | 103 km SSW of Atka, Alaska 51.425°, -175.036° | 35.0 km | - | - | - | ✓ Reviewed | USGS → |
The USGS recorded this magnitude 3.0 earthquake 103 km SSW of Atka, Alaska at 17:42 UTC on October 7, 2023. See the M3.0 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-10-07 2023-10-07 17:29:52 UTC | 4.8mb | Izu Islands, Japan region 31.174°, 141.927° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
On October 7, 2023 at 17:29 UTC, a magnitude 4.8 earthquake struck in the Izu Islands, Japan region. Coming 7 hours after a magnitude 5.0 earthquake in the immediate vicinity, it is most likely an aftershock of that larger rupture. See the M4.8 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-10-07 2023-10-07 17:29:17 UTC | 4.4mb | south of the Fiji Islands -24.822°, 179.869° | 487.1 km | - | - | - | ✓ Reviewed | USGS → |
Seismographs logged a magnitude 4.4 earthquake south of the Fiji Islands with origin time 17:29 UTC on October 7, 2023. This deep-focus earthquake originated far below the brittle crust, deep inside the mantle. See the M4.4 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-10-07 2023-10-07 17:05:18 UTC | 4.3mb | 42 km ENE of Noda, Japan 40.294°, 142.253° | 52.3 km | - | - | - | ✓ Reviewed | USGS → |
On October 7, 2023 at 17:05 UTC, a magnitude 4.3 earthquake struck 42 km ENE of Noda, Japan. Coming 3 hours after a magnitude 5.1 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. | ||||||||
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 October 7, 2023. Data includes all events of magnitude 1.0 or greater. Past earthquake data is considered final after review by USGS seismologists.