Earthquakes on October 11, 2023
297
EARTHQUAKES on October 11, 2023
24-hour UTC period · USGS data
LARGEST: M6.3 — west of Macquarie Island
10 km deep
Normal activitycompared to daily average (~250/day)
Magnitude Breakdown
M5.0+
7
M4.0–4.9
48
M3.0–3.9
8
M2.0–2.9
58
M1.0–1.9
176
Activity Summary
297
Total earthquakes
~250
Daily average
Normal
Activity level
7
M5.0+ events
Geographic Breakdown
By US State
Top Countries (International)
Significant Earthquakes (M4.5+)
6.3
west of Macquarie Island
20:04 UTC · 10.0 km deep
6.3
24 km NNW of Herāt, Afghanistan
00:41 UTC · 8.0 km deep
Felt by 54
5.7
Balleny Islands region
03:54 UTC · 10.0 km deep
5.2
78 km SE of Lugu, Taiwan
10:36 UTC · 16.0 km deep
Felt by 40
5.0
80 km SSE of Pangai, Tonga
04:37 UTC · 25.0 km deep
5.0
147 km E of Saipan, Northern Mariana Islands
01:50 UTC · 10.0 km deep
5.0
24 km NNW of Herāt, Afghanistan
00:52 UTC · 10.0 km deep
Felt by 3
4.9
east of the South Sandwich Islands
16:23 UTC · 10.0 km deep
Earthquake Map — October 11, 2023
All Earthquakes — October 11, 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 |
|---|---|---|---|---|---|---|---|---|
2023-10-11 2023-10-11 23:48:44 UTC | 2.5md | 10 km S of Emajagua, Puerto Rico 17.907°, -65.885° | 13.7 km | - | - | - | ✓ Reviewed | USGS → |
On October 11, 2023 at 23:48 UTC, a magnitude 2.5 earthquake struck 10 km S of Emajagua, Puerto Rico. The event was offshore. See the M2.5 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-10-11 2023-10-11 23:43:59 UTC | 4.0mb | Izu Islands, Japan region 29.740°, 138.715° | 433.4 km | - | - | - | ✓ Reviewed | USGS → |
Seismographs logged a magnitude 4.0 earthquake in the Izu Islands, Japan region with origin time 23:43 UTC on October 11, 2023. This deep-focus earthquake originated far below the brittle crust, deep inside the mantle. See the M4.0 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-10-11 2023-10-11 23:02:11 UTC | 4.5mb | 78 km NW of Phôngsali, Laos 22.235°, 101.630° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
This magnitude 4.5 event was detected 78 km NW of Phôngsali, Laos on October 11, 2023, with origin time 23:02 UTC. The event was offshore. See the M4.5 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-10-11 2023-10-11 22:59:23 UTC | 4.4mb | Pagan region, Northern Mariana Islands 18.549°, 145.418° | 198.2 km | - | - | - | ✓ Reviewed | USGS → |
At 22:59 UTC on October 11, 2023, a magnitude 4.4 tremor occurred in the Pagan region, Northern Mariana Islands. See the M4.4 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-10-11 2023-10-11 22:47:50 UTC | 2.2md | 3 km SSW of Pāhala, Hawaii 19.172°, -155.497° | 30.2 km | - | - | - | Auto | USGS → |
A magnitude 2.2 earthquake was recorded 3 km SSW of Pāhala, Hawaii on October 11, 2023 at 22:47 UTC. Coming 6 hours after a magnitude 2.3 earthquake in the immediate vicinity, it is most likely an aftershock of that larger rupture. See the M2.2 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-10-11 2023-10-11 22:33:13 UTC | 4.6mb | 74 km NW of Uken, Japan 28.779°, 128.696° | 138.5 km | - | - | - | ✓ Reviewed | USGS → |
At 22:33 UTC on October 11, 2023, a magnitude 4.6 tremor occurred 74 km NW of Uken, Japan. The event was offshore. See the M4.6 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-10-11 2023-10-11 22:10:20 UTC | 2.0ml | 15 km NW of Stagecoach, Nevada 39.490°, -119.474° | 0.0 km | - | - | - | ✓ Reviewed | USGS → |
On October 11, 2023 at 22:10 UTC, a magnitude 2.0 earthquake struck 15 km NW of Stagecoach, 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. | ||||||||
2023-10-11 2023-10-11 22:09:35 UTC | 2.0ml | 8 km ENE of Pāhala, Hawaii 19.231°, -155.399° | 29.6 km | - | - | - | Auto | USGS → |
A magnitude 2.0 earthquake was recorded 8 km ENE of Pāhala, Hawaii on October 11, 2023 at 22:09 UTC. It arrived roughly 9 hours after a larger magnitude 2.7 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. | ||||||||
2023-10-11 2023-10-11 21:40:27 UTC | 2.1md | 14 km SE of Pāhala, Hawaii 19.125°, -155.370° | 31.4 km | - | - | - | Auto | USGS → |
The USGS recorded this magnitude 2.1 earthquake 14 km SE of Pāhala, Hawaii at 21:40 UTC on October 11, 2023. It arrived roughly 5 hours after a larger magnitude 2.3 mainshock in the same 20 km area, placing it within the typical aftershock window. The event was offshore. See the M2.1 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-10-11 2023-10-11 21:20:30 UTC | 2.9ml | 62 km SSE of Unalaska, Alaska 53.382°, -166.069° | 27.1 km | - | - | - | ✓ Reviewed | USGS → |
On October 11, 2023, worldwide seismic activity registered a magnitude 2.9 earthquake 62 km SSE of Unalaska, Alaska at 21:20 UTC. See the M2.9 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-10-11 2023-10-11 20:49:28 UTC | 2.0ml | 39 km NW of Stanley, Idaho 44.511°, -115.223° | 5.8 km | - | - | - | ✓ Reviewed | USGS → |
Reports of a magnitude 2.0 earthquake 39 km NW of Stanley, Idaho came in on October 11, 2023 at 20:49 UTC. The event was offshore. See the M2.0 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-10-11 2023-10-11 20:48:27 UTC | 4.0mb | 152 km NW of Tobelo, Indonesia 2.717°, 127.055° | 74.7 km | - | - | - | ✓ Reviewed | USGS → |
On October 11, 2023, worldwide seismic activity registered a magnitude 4.0 earthquake 152 km NW of Tobelo, Indonesia at 20:48 UTC. The event was offshore. See the M4.0 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-10-11 2023-10-11 20:45:03 UTC | 4.2mb | north of Svalbard 85.467°, 10.869° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 4.2 seismic event took place north of Svalbard on October 11, 2023 at 20:45 UTC. See the M4.2 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-10-11 2023-10-11 20:28:44 UTC | 2.3ml | 6 km S of Pāhala, Hawaii 19.148°, -155.478° | 32.5 km | - | - | - | Auto | USGS → |
At 20:28 UTC on October 11, 2023, a magnitude 2.3 tremor occurred 6 km S of Pāhala, Hawaii. This event falls inside the aftershock decay of a nearby magnitude 2.3 earthquake that occurred about 4 hours earlier. The event was offshore. See the M2.3 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-10-11 2023-10-11 20:07:17 UTC | 4.4mb | 120 km S of Isangel, Vanuatu -20.631°, 169.367° | 52.9 km | - | - | - | ✓ Reviewed | USGS → |
The USGS recorded this magnitude 4.4 earthquake 120 km S of Isangel, Vanuatu at 20:07 UTC on October 11, 2023. The event was offshore. See the M4.4 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-10-11 2023-10-11 20:04:58 UTC | 6.3mww | west of Macquarie Island -52.045°, 139.613° | 10.0 km | - | - | green | ✓ Reviewed | USGS → |
On October 11, 2023 at 20:04 UTC, a magnitude 6.3 earthquake struck west of Macquarie Island. The USGS PAGER system assigned a green alert level for this event, signalling no significant casualties or damage expected. It is the largest earthquake currently listed for worldwide seismic activity on October 11, 2023. See the M6.3 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-10-11 2023-10-11 19:59:30 UTC | 3.3ml | 9 km E of Wright, Wyoming 43.752°, -105.375° | 0.0 km | - | - | - | ✓ Reviewed | USGS → |
October 11, 2023 brought a magnitude 3.3 earthquake 9 km E of Wright, Wyoming, logged at 19:59 UTC. This very shallow event was close enough to the surface that even modest magnitudes can produce significant local shaking. See the M3.3 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-10-11 2023-10-11 19:47:02 UTC | 2.3ml | 6 km S of Pāhala, Hawaii 19.147°, -155.477° | 31.4 km | - | - | - | Auto | USGS → |
Seismographs logged a magnitude 2.3 earthquake 6 km S of Pāhala, Hawaii with origin time 19:47 UTC on October 11, 2023. Coming 3 hours after a magnitude 2.3 earthquake in the immediate vicinity, it is most likely an aftershock of that larger rupture. The event was offshore. See the M2.3 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-10-11 2023-10-11 19:43:37 UTC | 4.1mb | 132 km E of Madang, Papua New Guinea -5.395°, 146.969° | 223.5 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 4.1 seismic event took place 132 km E of Madang, Papua New Guinea on October 11, 2023 at 19:43 UTC. The event was offshore. See the M4.1 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-10-11 2023-10-11 18:59:24 UTC | 2.0ml | 135 km S of Unalaska, Alaska 52.654°, -166.637° | 8.1 km | - | - | - | ✓ Reviewed | USGS → |
Seismographs logged a magnitude 2.0 earthquake 135 km S of Unalaska, Alaska with origin time 18:59 UTC on October 11, 2023. The event was offshore. See the M2.0 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-10-11 2023-10-11 18:45:41 UTC | 4.3mb | 23 km ENE of Menídi, Greece 39.102°, 21.379° | 41.1 km | - | - | - | ✓ Reviewed | USGS → |
Reports of a magnitude 4.3 earthquake 23 km ENE of Menídi, Greece came in on October 11, 2023 at 18:45 UTC. See the M4.3 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-10-11 2023-10-11 18:37:21 UTC | 4.8mb | 43 km NNE of Dipayal, Nepal 29.587°, 81.180° | 10.0 km | 3 | - | - | ✓ Reviewed | USGS → |
A magnitude 4.8 seismic event took place 43 km NNE of Dipayal, Nepal on October 11, 2023 at 18:37 UTC. See the M4.8 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-10-11 2023-10-11 18:12:32 UTC | 4.1mb | 166 km SE of Sarangani, Philippines 4.225°, 126.393° | 40.0 km | - | - | - | ✓ Reviewed | USGS → |
October 11, 2023 brought a magnitude 4.1 earthquake 166 km SE of Sarangani, Philippines, logged at 18:12 UTC. The event was offshore. See the M4.1 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-10-11 2023-10-11 17:49:49 UTC | 2.5ml | 16 km WSW of Lordsburg, New Mexico 32.317°, -108.877° | 13.0 km | - | - | - | ✓ Reviewed | USGS → |
This magnitude 2.5 event was detected 16 km WSW of Lordsburg, New Mexico on October 11, 2023, with origin time 17:49 UTC. See the M2.5 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-10-11 2023-10-11 17:13:16 UTC | 2.7ml | 46 km SE of Akutan, Alaska 53.839°, -165.268° | 108.9 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 2.7 seismic event took place 46 km SE of Akutan, Alaska on October 11, 2023 at 17:13 UTC. The event was offshore. See the M2.7 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-10-11 2023-10-11 17:00:34 UTC | 2.3md | 11 km SSW of Volcano, Hawaii 19.358°, -155.293° | 1.7 km | - | - | - | ✓ Reviewed | USGS → |
The USGS recorded this magnitude 2.3 earthquake 11 km SSW of Volcano, Hawaii at 17:00 UTC on October 11, 2023. Coming 4 hours after a magnitude 2.7 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 M2.3 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-10-11 2023-10-11 16:39:42 UTC | 4.2mb | south of the Fiji Islands -24.917°, 179.737° | 511.2 km | - | - | - | ✓ Reviewed | USGS → |
October 11, 2023 brought a magnitude 4.2 earthquake south of the Fiji Islands, logged at 16:39 UTC. This is the deepest earthquake in the current dataset — a deep-focus event. See the M4.2 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-10-11 2023-10-11 16:35:34 UTC | 2.0ml | 74 km W of Karluk, Alaska 57.628°, -155.696° | 95.4 km | - | - | - | ✓ Reviewed | USGS → |
On October 11, 2023, worldwide seismic activity registered a magnitude 2.0 earthquake 74 km W of Karluk, Alaska at 16:35 UTC. The event was offshore. See the M2.0 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-10-11 2023-10-11 16:26:57 UTC | 2.3ml | 5 km SSW of Pāhala, Hawaii 19.153°, -155.500° | 31.8 km | - | - | - | Auto | USGS → |
October 11, 2023 brought a magnitude 2.3 earthquake 5 km SSW of Pāhala, Hawaii, logged at 16:26 UTC. In the 72 hours after this event, the USGS recorded 6 smaller earthquakes within 20 km, consistent with an ongoing aftershock sequence rooted here. See the M2.3 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-10-11 2023-10-11 16:23:46 UTC | 4.9mb | east of the South Sandwich Islands -58.290°, -15.719° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
Reports of a magnitude 4.9 earthquake east of the South Sandwich Islands came in on October 11, 2023 at 16:23 UTC. See the M4.9 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 11, 2023. Data includes all events of magnitude 1.0 or greater. Past earthquake data is considered final after review by USGS seismologists.