Earthquakes on October 5, 2023
323
EARTHQUAKES on October 5, 2023
24-hour UTC period · USGS data
LARGEST: M6.1 — Izu Islands, Japan region
10 km deep · 2 people felt it
Elevated activitycompared to daily average (~250/day)
Magnitude Breakdown
M5.0+
13
M4.0–4.9
49
M3.0–3.9
11
M2.0–2.9
73
M1.0–1.9
177
Activity Summary
323
Total earthquakes
~250
Daily average
Elevated
Activity level
13
M5.0+ events
Significant Earthquakes (M4.5+)
6.1
Izu Islands, Japan region
01:59 UTC · 10.0 km deep
Felt by 2
5.7
Izu Islands, Japan region
06:22 UTC · 10.0 km deep
5.7
Izu Islands, Japan region
02:53 UTC · 10.0 km deep
5.4
Izu Islands, Japan region
02:06 UTC · 10.0 km deep
5.4
132 km E of Kokopo, Papua New Guinea
01:42 UTC · 115.9 km deep
5.3
Izu Islands, Japan region
02:15 UTC · 10.0 km deep
5.2
Izu Islands, Japan region
21:56 UTC · 10.0 km deep
5.2
Izu Islands, Japan region
06:48 UTC · 10.0 km deep
Earthquake Map — October 5, 2023
All Earthquakes — October 5, 2023
Showing 30 of 146 (filtered from 323)
(Filtered to M2.0+. Change the magnitude filter to see smaller events.)
| Time ↓ | Mag ↕ | Location ↕ | Depth ↕ | Felt ↕ | MMI | Alert | Status | Details |
|---|---|---|---|---|---|---|---|---|
2023-10-05 2023-10-05 23:45:37 UTC | 2.6ml | 75 km SE of Unalaska, Alaska 53.454°, -165.636° | 26.4 km | - | - | - | ✓ Reviewed | USGS → |
On October 5, 2023, worldwide seismic activity registered a magnitude 2.6 earthquake 75 km SE of Unalaska, Alaska at 23:45 UTC. The event was offshore. See the M2.6 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-10-05 2023-10-05 23:29:45 UTC | 2.0ml | 53 km WNW of Preston, Nevada 39.102°, -115.628° | 2.3 km | - | - | - | ✓ Reviewed | USGS → |
At 23:29 UTC on October 5, 2023, a magnitude 2.0 tremor occurred 53 km WNW of Preston, Nevada. This very shallow event was close enough to the surface that even modest magnitudes can produce significant local shaking. See the M2.0 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-10-05 2023-10-05 22:54:24 UTC | 2.7ml | 216 km S of Nikolski, Alaska 51.008°, -168.527° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 2.7 seismic event took place 216 km S of Nikolski, Alaska on October 5, 2023 at 22:54 UTC. The event was offshore. See the M2.7 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-10-05 2023-10-05 22:33:32 UTC | 2.3ml | 52 km E of Juneau, Alaska 58.354°, -133.528° | 0.0 km | - | - | - | ✓ Reviewed | USGS → |
October 5, 2023 brought a magnitude 2.3 earthquake 52 km E of Juneau, Alaska, logged at 22:33 UTC. It arrived roughly 7 hours after a larger magnitude 2.9 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 M2.3 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-10-05 2023-10-05 22:32:40 UTC | 2.1ml(texnet) | western Texas 31.602°, -103.948° | 6.3 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 2.1 seismic event took place near western Texas on October 5, 2023 at 22:32 UTC. This event falls inside the aftershock decay of a nearby magnitude 2.7 earthquake that occurred about 18 hours earlier. See the M2.1 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-10-05 2023-10-05 22:30:22 UTC | 2.2md | 21 km SSW of Leilani Estates, Hawaii 19.282°, -154.966° | 35.5 km | - | - | - | ✓ Reviewed | USGS → |
The USGS recorded this magnitude 2.2 earthquake 21 km SSW of Leilani Estates, Hawaii at 22:30 UTC on October 5, 2023. See the M2.2 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-10-05 2023-10-05 22:13:19 UTC | 4.3mb | 99 km E of La Tirana, Chile -20.230°, -68.710° | 119.9 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 4.3 seismic event took place 99 km E of La Tirana, Chile on October 5, 2023 at 22:13 UTC. The event was offshore. See the M4.3 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-10-05 2023-10-05 22:11:40 UTC | 2.1ml | 198 km W of Adak, Alaska 51.888°, -179.512° | 91.2 km | - | - | - | ✓ Reviewed | USGS → |
October 5, 2023 brought a magnitude 2.1 earthquake 198 km W of Adak, Alaska, logged at 22:11 UTC. The event was offshore. See the M2.1 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-10-05 2023-10-05 21:56:36 UTC | 5.2mww | Izu Islands, Japan region 31.173°, 141.898° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
This magnitude 5.2 event was detected in the Izu Islands, Japan region on October 5, 2023, with origin time 21:56 UTC. See the M5.2 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-10-05 2023-10-05 21:53:57 UTC | 4.7mb | Izu Islands, Japan region 30.146°, 139.766° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 4.7 earthquake was recorded in the Izu Islands, Japan region on October 5, 2023 at 21:53 UTC. It arrived roughly 18 hours after a larger magnitude 5.2 mainshock in the same 20 km area, placing it within the typical aftershock window. See the M4.7 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-10-05 2023-10-05 21:32:29 UTC | 2.0md | 21 km SW of Ambrose, CA 41.346°, -121.121° | -1.8 km | - | - | - | ✓ Reviewed | USGS → |
Seismographs logged a magnitude 2.0 earthquake 21 km SW of Ambrose, CA with origin time 21:32 UTC on October 5, 2023. This very shallow event was close enough to the surface that even modest magnitudes can produce significant local shaking. See the M2.0 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-10-05 2023-10-05 21:16:31 UTC | 2.2ml | 150 km W of Adak, Alaska 51.883°, -178.826° | 141.6 km | - | - | - | ✓ Reviewed | USGS → |
October 5, 2023 brought a magnitude 2.2 earthquake 150 km W of Adak, Alaska, logged at 21:16 UTC. The event was offshore. See the M2.2 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-10-05 2023-10-05 21:11:56 UTC | 2.3ml | 8 km ENE of Sprague, Washington 47.340°, -117.887° | -0.7 km | - | - | - | ✓ Reviewed | USGS → |
On October 5, 2023, worldwide seismic activity registered a magnitude 2.3 earthquake 8 km ENE of Sprague, Washington at 21:11 UTC. This very shallow event was close enough to the surface that even modest magnitudes can produce significant local shaking. See the M2.3 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-10-05 2023-10-05 21:04:17 UTC | 2.0md | Island of Hawaii, Hawaii 19.166°, -155.488° | 31.5 km | - | - | - | Auto | USGS → |
A magnitude 2.0 seismic event took place near Island of Hawaii, Hawaii on October 5, 2023 at 21:04 UTC. Coming 15 hours after a magnitude 2.2 earthquake in the immediate vicinity, it is most likely an aftershock of that larger rupture. See the M2.0 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-10-05 2023-10-05 20:55:06 UTC | 4.8mwr | 8 km NNE of El Ángel, Ecuador 0.691°, -77.913° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
This magnitude 4.8 event was detected 8 km NNE of El Ángel, Ecuador on October 5, 2023, with origin time 20:55 UTC. See the M4.8 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-10-05 2023-10-05 20:53:01 UTC | 4.6mb | Izu Islands, Japan region 30.104°, 140.059° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
The USGS recorded this magnitude 4.6 earthquake in the Izu Islands, Japan region at 20:53 UTC on October 5, 2023. This event falls inside the aftershock decay of a nearby magnitude 5.7 earthquake that occurred about 15 hours earlier. See the M4.6 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-10-05 2023-10-05 20:49:06 UTC | 2.2ml | 13 km SSW of Volcano, Hawaii 19.338°, -155.306° | 4.0 km | - | - | - | ✓ Reviewed | USGS → |
This magnitude 2.2 event was detected 13 km SSW of Volcano, Hawaii on October 5, 2023, with origin time 20:49 UTC. This event falls inside the aftershock decay of a nearby magnitude 2.7 earthquake that occurred about 4 hours earlier. This very shallow event was close enough to the surface that even modest magnitudes can produce significant local shaking. See the M2.2 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-10-05 2023-10-05 20:41:25 UTC | 2.3ml | 14 km SW of Volcano, Hawaii 19.338°, -155.315° | 3.1 km | - | - | - | ✓ Reviewed | USGS → |
This magnitude 2.3 event was detected 14 km SW of Volcano, Hawaii on October 5, 2023, with origin time 20:41 UTC. It arrived roughly 4 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 M2.3 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-10-05 2023-10-05 20:41:09 UTC | 3.0md | 6 km S of Indios, Puerto Rico 17.935°, -66.821° | 9.5 km | 1 | - | - | ✓ Reviewed | USGS → |
On October 5, 2023, worldwide seismic activity registered a magnitude 3.0 earthquake 6 km S of Indios, Puerto Rico at 20:41 UTC. The event was offshore. See the M3.0 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-10-05 2023-10-05 20:33:51 UTC | 2.6ml | 142 km S of Unalaska, Alaska 52.596°, -166.598° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
At 20:33 UTC on October 5, 2023, a magnitude 2.6 tremor occurred 142 km S of Unalaska, Alaska. The event was offshore. See the M2.6 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-10-05 2023-10-05 20:33:46 UTC | 2.6ml | 127 km WSW of Adak, Alaska 51.367°, -178.281° | 32.6 km | - | - | - | ✓ Reviewed | USGS → |
The USGS recorded this magnitude 2.6 earthquake 127 km WSW of Adak, Alaska at 20:33 UTC on October 5, 2023. See the M2.6 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-10-05 2023-10-05 20:14:37 UTC | 2.0ml | 26 km WSW of Nanwalek, Alaska 59.255°, -152.342° | 68.7 km | - | - | - | ✓ Reviewed | USGS → |
The USGS recorded this magnitude 2.0 earthquake 26 km WSW of Nanwalek, Alaska at 20:14 UTC on October 5, 2023. See the M2.0 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-10-05 2023-10-05 19:57:45 UTC | 4.3mb | 148 km E of Kokopo, Papua New Guinea -4.420°, 153.606° | 107.2 km | - | - | - | ✓ Reviewed | USGS → |
October 5, 2023 brought a magnitude 4.3 earthquake 148 km E of Kokopo, Papua New Guinea, logged at 19:57 UTC. This event falls inside the aftershock decay of a nearby magnitude 5.4 earthquake that occurred about 18 hours earlier. The event was offshore. See the M4.3 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-10-05 2023-10-05 19:25:27 UTC | 2.6ml | 84 km NW of Aleneva, Alaska 58.574°, -153.982° | 77.6 km | - | - | - | ✓ Reviewed | USGS → |
This magnitude 2.6 event was detected 84 km NW of Aleneva, Alaska on October 5, 2023, with origin time 19:25 UTC. The event was offshore. See the M2.6 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-10-05 2023-10-05 18:19:21 UTC | 2.2ml | 95 km W of Elfin Cove, Alaska 58.289°, -137.953° | 8.9 km | - | - | - | ✓ Reviewed | USGS → |
On October 5, 2023 at 18:19 UTC, a magnitude 2.2 earthquake struck 95 km W of Elfin Cove, Alaska. The event was offshore. See the M2.2 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-10-05 2023-10-05 17:20:04 UTC | 3.8md | 39 km N of Carrizales, Puerto Rico 18.836°, -66.740° | 48.0 km | - | - | - | ✓ Reviewed | USGS → |
On October 5, 2023, worldwide seismic activity registered a magnitude 3.8 earthquake 39 km N of Carrizales, Puerto Rico at 17:20 UTC. The event was offshore. See the M3.8 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-10-05 2023-10-05 17:14:07 UTC | 4.2mb | 83 km W of San Antonio de los Cobres, Argentina -24.299°, -67.139° | 174.5 km | - | - | - | ✓ Reviewed | USGS → |
Reports of a magnitude 4.2 earthquake 83 km W of San Antonio de los Cobres, Argentina came in on October 5, 2023 at 17:14 UTC. The event was offshore. See the M4.2 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-10-05 2023-10-05 17:04:09 UTC | 2.3ml | 6 km SSE of Tishomingo, Oklahoma 34.182°, -96.640° | 3.0 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 2.3 seismic event took place 6 km SSE of Tishomingo, Oklahoma on October 5, 2023 at 17:04 UTC. This very shallow event was close enough to the surface that even modest magnitudes can produce significant local shaking. See the M2.3 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-10-05 2023-10-05 17:01:55 UTC | 2.7ml | 10 km SSW of Volcano, Hawaii 19.366°, -155.287° | 2.2 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 2.7 earthquake was recorded 10 km SSW of Volcano, Hawaii on October 5, 2023 at 17:01 UTC. In the 72 hours after this event, the USGS recorded 12 smaller earthquakes within 20 km, consistent with an ongoing aftershock sequence rooted here. See the M2.7 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-10-05 2023-10-05 16:58:29 UTC | 4.6mb | Izu Islands, Japan region 30.196°, 139.787° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
This magnitude 4.6 event was detected in the Izu Islands, Japan region on October 5, 2023, with origin time 16:58 UTC. Coming 1 hours after a magnitude 4.8 earthquake in the immediate vicinity, it is most likely an aftershock of that larger rupture. See the M4.6 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 5, 2023. Data includes all events of magnitude 1.0 or greater. Past earthquake data is considered final after review by USGS seismologists.