Earthquakes on October 3, 2023
297
EARTHQUAKES on October 3, 2023
24-hour UTC period · USGS data
LARGEST: M6.0 — Izu Islands, Japan region
10 km deep · 1 person felt it
Normal activitycompared to daily average (~250/day)
Magnitude Breakdown
M5.0+
10
M4.0–4.9
59
M3.0–3.9
5
M2.0–2.9
47
M1.0–1.9
176
Activity Summary
297
Total earthquakes
~250
Daily average
Normal
Activity level
10
M5.0+ events
Significant Earthquakes (M4.5+)
6.0
Izu Islands, Japan region
11:38 UTC · 10.0 km deep
Felt by 1
5.8
Izu Islands, Japan region
15:22 UTC · 6.0 km deep
5.7
39 km NE of Dipayal, Nepal
09:21 UTC · 13.0 km deep
Felt by 131
5.7
159 km E of Kokopo, Papua New Guinea
01:56 UTC · 86.0 km deep
5.3
Bonin Islands, Japan region
19:16 UTC · 518.8 km deep
5.2
Izu Islands, Japan region
20:32 UTC · 10.0 km deep
5.1
254 km ESE of Sarangani, Philippines
13:53 UTC · 82.9 km deep
5.0
80 km E of Fangale’ounga, Tonga
19:04 UTC · 10.0 km deep
Earthquake Map — October 3, 2023
All Earthquakes — October 3, 2023
Showing 30 of 121 (filtered from 297)
(Filtered to M2.0+. Change the magnitude filter to see smaller events.)
| Time ↓ | Mag ↕ | Location ↕ | Depth ↕ | Felt ↕ | MMI | Alert | Status | Details |
|---|---|---|---|---|---|---|---|---|
2023-10-03 2023-10-03 23:58:04 UTC | 4.3mb | 61 km NNE of Dipayal, Nepal 29.724°, 81.290° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
Seismographs logged a magnitude 4.3 earthquake 61 km NNE of Dipayal, Nepal with origin time 23:58 UTC on October 3, 2023. This event falls inside the aftershock decay of a nearby magnitude 4.8 earthquake that occurred about 12 hours earlier. See the M4.3 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-10-03 2023-10-03 23:48:33 UTC | 2.0md | 1 km WSW of Pāhala, Hawaii 19.197°, -155.489° | 32.0 km | - | - | - | Auto | USGS → |
This magnitude 2.0 event was detected 1 km WSW of Pāhala, Hawaii on October 3, 2023, with origin time 23:48 UTC. Coming 18 hours after a magnitude 2.0 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. | ||||||||
2023-10-03 2023-10-03 23:08:38 UTC | 4.4mb | Izu Islands, Japan region 29.688°, 140.045° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
On October 3, 2023, worldwide seismic activity registered a magnitude 4.4 earthquake in the Izu Islands, Japan region at 23:08 UTC. This event falls inside the aftershock decay of a nearby magnitude 5.2 earthquake that occurred about 3 hours earlier. See the M4.4 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-10-03 2023-10-03 23:02:46 UTC | 4.5mb | Izu Islands, Japan region 29.892°, 140.121° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 4.5 earthquake was recorded in the Izu Islands, Japan region on October 3, 2023 at 23:02 UTC. This event falls inside the aftershock decay of a nearby magnitude 6.0 earthquake that occurred about 11 hours earlier. See the M4.5 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-10-03 2023-10-03 23:01:41 UTC | 2.1ml(texnet) | western Texas 31.681°, -104.431° | 6.1 km | - | - | - | ✓ Reviewed | USGS → |
At 23:01 UTC on October 3, 2023, a magnitude 2.1 tremor occurred near western Texas. Coming 5 hours after a magnitude 2.4 earthquake in the immediate vicinity, it is most likely an aftershock of that larger rupture. See the M2.1 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-10-03 2023-10-03 22:59:49 UTC | 2.0ml | 94 km SSW of Sand Point, Alaska 54.550°, -161.067° | 13.1 km | - | - | - | ✓ Reviewed | USGS → |
Reports of a magnitude 2.0 earthquake 94 km SSW of Sand Point, Alaska came in on October 3, 2023 at 22:59 UTC. See the M2.0 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-10-03 2023-10-03 22:55:28 UTC | 2.3ml | Central Alaska 63.188°, -148.705° | 73.4 km | - | - | - | ✓ Reviewed | USGS → |
At 22:55 UTC on October 3, 2023, a magnitude 2.3 tremor occurred near Central Alaska. See the M2.3 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-10-03 2023-10-03 22:50:26 UTC | 2.0md | 21 km SE of Naalehu, Hawaii 18.950°, -155.418° | 32.5 km | - | - | - | Auto | USGS → |
On October 3, 2023, worldwide seismic activity registered a magnitude 2.0 earthquake 21 km SE of Naalehu, Hawaii at 22:50 UTC. The event was offshore. See the M2.0 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-10-03 2023-10-03 22:38:45 UTC | 4.7mb | Izu Islands, Japan region 30.015°, 139.844° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
Reports of a magnitude 4.7 earthquake in the Izu Islands, Japan region came in on October 3, 2023 at 22:38 UTC. Coming 11 hours after a magnitude 6.0 earthquake in the immediate vicinity, it is most likely an aftershock of that larger rupture. See the M4.7 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-10-03 2023-10-03 22:17:05 UTC | 4.9mb | 152 km S of Bengkulu, Indonesia -5.179°, 102.264° | 32.2 km | - | - | - | ✓ Reviewed | USGS → |
On October 3, 2023 at 22:17 UTC, a magnitude 4.9 earthquake struck 152 km S of Bengkulu, Indonesia. The event was offshore. See the M4.9 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-10-03 2023-10-03 22:15:53 UTC | 2.0md | 2 km S of Pāhala, Hawaii 19.180°, -155.481° | 36.3 km | - | - | - | Auto | USGS → |
A magnitude 2.0 seismic event took place 2 km S of Pāhala, Hawaii on October 3, 2023 at 22:15 UTC. This event falls inside the aftershock decay of a nearby magnitude 2.0 earthquake that occurred about 16 hours earlier. The event was offshore. See the M2.0 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-10-03 2023-10-03 21:51:17 UTC | 4.5mb | 136 km E of Kokopo, Papua New Guinea -4.473°, 153.495° | 113.1 km | - | - | - | ✓ Reviewed | USGS → |
Seismographs logged a magnitude 4.5 earthquake 136 km E of Kokopo, Papua New Guinea with origin time 21:51 UTC on October 3, 2023. Coming 17 hours after a magnitude 4.6 earthquake in the immediate vicinity, it is most likely an aftershock of that larger rupture. The event was offshore. See the M4.5 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-10-03 2023-10-03 21:39:36 UTC | 2.1ml | 13 km WNW of Calipatria, CA 33.172°, -115.644° | 2.7 km | - | - | - | ✓ Reviewed | USGS → |
On October 3, 2023 at 21:39 UTC, a magnitude 2.1 earthquake struck 13 km WNW of Calipatria, CA. Coming 10 hours after a magnitude 2.2 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. | ||||||||
2023-10-03 2023-10-03 21:35:49 UTC | 2.5ml | Central Alaska 63.278°, -150.413° | 122.3 km | - | - | - | ✓ Reviewed | USGS → |
At 21:35 UTC on October 3, 2023, a magnitude 2.5 tremor occurred near Central Alaska. See the M2.5 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-10-03 2023-10-03 21:28:14 UTC | 2.1ml | 57 km SW of Unalaska, Alaska 53.588°, -167.261° | 6.6 km | - | - | - | ✓ Reviewed | USGS → |
The USGS recorded this magnitude 2.1 earthquake 57 km SW of Unalaska, Alaska at 21:28 UTC on October 3, 2023. The event was offshore. See the M2.1 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-10-03 2023-10-03 21:21:01 UTC | 4.7mb | south of the Fiji Islands -23.552°, -179.990° | 536.2 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 4.7 seismic event took place south of the Fiji Islands on October 3, 2023 at 21:21 UTC. This deep-focus earthquake originated far below the brittle crust, deep inside the mantle. See the M4.7 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-10-03 2023-10-03 21:19:22 UTC | 4.8mb | Izu Islands, Japan region 29.888°, 140.470° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
At 21:19 UTC on October 3, 2023, a magnitude 4.8 tremor occurred in the Izu Islands, Japan region. See the M4.8 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-10-03 2023-10-03 21:10:35 UTC | 4.5mb | Izu Islands, Japan region 29.743°, 139.837° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
On October 3, 2023, worldwide seismic activity registered a magnitude 4.5 earthquake in the Izu Islands, Japan region at 21:10 UTC. It arrived roughly 6 hours after a larger magnitude 5.0 mainshock in the same 20 km area, placing it within the typical aftershock window. See the M4.5 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-10-03 2023-10-03 21:08:45 UTC | 2.7ml | 40 km S of Akutan, Alaska 53.772°, -165.680° | 69.1 km | - | - | - | ✓ Reviewed | USGS → |
Reports of a magnitude 2.7 earthquake 40 km S of Akutan, Alaska came in on October 3, 2023 at 21:08 UTC. The event was offshore. See the M2.7 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-10-03 2023-10-03 20:43:12 UTC | 2.1ml | 70 km S of Ivanof Bay, Alaska 55.276°, -159.328° | 11.6 km | - | - | - | ✓ Reviewed | USGS → |
This magnitude 2.1 event was detected 70 km S of Ivanof Bay, Alaska on October 3, 2023, with origin time 20:43 UTC. The event was offshore. See the M2.1 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-10-03 2023-10-03 20:41:25 UTC | 3.2ml | 23 km E of Beluga, Alaska 61.174°, -150.648° | 53.4 km | 7 | II | - | ✓ Reviewed | USGS → |
A magnitude 3.2 earthquake was recorded 23 km E of Beluga, Alaska on October 3, 2023 at 20:41 UTC. The event was offshore. See the M3.2 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-10-03 2023-10-03 20:32:35 UTC | 5.2mww | Izu Islands, Japan region 29.860°, 140.011° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
The USGS recorded this magnitude 5.2 earthquake in the Izu Islands, Japan region at 20:32 UTC on October 3, 2023. Coming 9 hours after a magnitude 6.0 earthquake in the immediate vicinity, it is most likely an aftershock of that larger rupture. See the M5.2 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-10-03 2023-10-03 20:31:01 UTC | 4.3mb | Izu Islands, Japan region 30.029°, 140.376° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
On October 3, 2023, worldwide seismic activity registered a magnitude 4.3 earthquake in the Izu Islands, Japan region at 20:31 UTC. See the M4.3 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-10-03 2023-10-03 20:11:39 UTC | 2.5ml | 24 km SW of Karluk, Alaska 57.403°, -154.717° | 46.8 km | - | - | - | ✓ Reviewed | USGS → |
The USGS recorded this magnitude 2.5 earthquake 24 km SW of Karluk, Alaska at 20:11 UTC on October 3, 2023. The event was offshore. See the M2.5 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-10-03 2023-10-03 20:03:30 UTC | 2.6ml | 139 km SW of Nikolski, Alaska 52.151°, -170.457° | 35.0 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 2.6 earthquake was recorded 139 km SW of Nikolski, Alaska on October 3, 2023 at 20:03 UTC. The event was offshore. See the M2.6 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-10-03 2023-10-03 20:01:41 UTC | 2.6ml | 41 km W of Port Lions, Alaska 57.852°, -153.578° | 45.9 km | 1 | - | - | ✓ Reviewed | USGS → |
Seismographs logged a magnitude 2.6 earthquake 41 km W of Port Lions, Alaska with origin time 20:01 UTC on October 3, 2023. The event was offshore. See the M2.6 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-10-03 2023-10-03 19:58:33 UTC | 3.1ml | 16 km E of Wright, Wyoming 43.746°, -105.289° | 0.0 km | - | - | - | ✓ Reviewed | USGS → |
Seismographs logged a magnitude 3.1 earthquake 16 km E of Wright, Wyoming with origin time 19:58 UTC on October 3, 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. | ||||||||
2023-10-03 2023-10-03 19:48:11 UTC | 2.1ml | 25 km SSE of False Pass, Alaska 54.635°, -163.305° | 8.9 km | - | - | - | ✓ Reviewed | USGS → |
Reports of a magnitude 2.1 earthquake 25 km SSE of False Pass, Alaska came in on October 3, 2023 at 19:48 UTC. See the M2.1 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-10-03 2023-10-03 19:27:13 UTC | 4.9mb | Izu Islands, Japan region 29.872°, 140.014° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 4.9 earthquake was recorded in the Izu Islands, Japan region on October 3, 2023 at 19:27 UTC. Coming 8 hours after a magnitude 6.0 earthquake in the immediate vicinity, it is most likely an aftershock of that larger rupture. See the M4.9 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-10-03 2023-10-03 19:16:58 UTC | 5.3mww | Bonin Islands, Japan region 28.370°, 138.766° | 518.8 km | - | - | - | ✓ Reviewed | USGS → |
At 19:16 UTC on October 3, 2023, a magnitude 5.3 tremor occurred in the Bonin Islands, Japan region. This deep-focus earthquake originated far below the brittle crust, deep inside the mantle. See the M5.3 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 3, 2023. Data includes all events of magnitude 1.0 or greater. Past earthquake data is considered final after review by USGS seismologists.