Earthquakes on October 17, 2023
251
EARTHQUAKES on October 17, 2023
24-hour UTC period · USGS data
10 km deep
Normal activitycompared to daily average (~250/day)
Magnitude Breakdown
M5.0+
6
M4.0–4.9
20
M3.0–3.9
12
M2.0–2.9
57
M1.0–1.9
156
Activity Summary
251
Total earthquakes
~250
Daily average
Normal
Activity level
6
M5.0+ events
Geographic Breakdown
By US State
Top Countries (International)
Significant Earthquakes (M4.5+)
5.6
southeast of the Loyalty Islands
13:40 UTC · 10.0 km deep
5.5
58 km NNW of Bandar Abbas, Iran
05:10 UTC · 10.0 km deep
Felt by 7
5.3
62 km NNW of Bandar Abbas, Iran
16:26 UTC · 10.0 km deep
Felt by 5
5.2
Kermadec Islands region
21:52 UTC · 10.0 km deep
5.1
60 km NNW of Bandar Abbas, Iran
04:59 UTC · 10.0 km deep
Felt by 3
5.0
57 km NNW of Bandar Abbas, Iran
08:22 UTC · 10.0 km deep
Felt by 2
4.6
80 km N of Barrancas, Argentina
02:35 UTC · 172.7 km deep
4.5
52 km NE of Shikotan, Russia
22:56 UTC · 112.2 km deep
Earthquake Map — October 17, 2023
All Earthquakes — October 17, 2023
Showing 30 of 95 (filtered from 251)
(Filtered to M2.0+. Change the magnitude filter to see smaller events.)
| Time ↓ | Mag ↕ | Location ↕ | Depth ↕ | Felt ↕ | MMI | Alert | Status | Details |
|---|---|---|---|---|---|---|---|---|
2023-10-17 2023-10-17 23:47:37 UTC | 2.5md | 6 km SW of Guánica, Puerto Rico 17.924°, -66.949° | 9.8 km | - | - | - | ✓ Reviewed | USGS → |
At 23:47 UTC on October 17, 2023, a magnitude 2.5 tremor occurred 6 km SW of Guánica, Puerto Rico. It arrived roughly 12 hours after a larger magnitude 2.9 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. | ||||||||
2023-10-17 2023-10-17 23:41:09 UTC | 4.4mb | 193 km SE of Katsuura, Japan 33.807°, 141.661° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
Seismographs logged a magnitude 4.4 earthquake 193 km SE of Katsuura, Japan with origin time 23:41 UTC on October 17, 2023. The event was offshore. See the M4.4 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-10-17 2023-10-17 23:14:47 UTC | 2.7ml | 10 km SSE of Alberto Oviedo Mota, B.C., MX 32.138°, -115.135° | 19.6 km | - | - | - | ✓ Reviewed | USGS → |
Reports of a magnitude 2.7 earthquake 10 km SSE of Alberto Oviedo Mota, B.C., MX came in on October 17, 2023 at 23:14 UTC. See the M2.7 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-10-17 2023-10-17 23:06:25 UTC | 3.0ml | 2 km WSW of Pāhala, Hawaii 19.195°, -155.505° | 32.1 km | 2 | - | - | ✓ Reviewed | USGS → |
This magnitude 3.0 event was detected 2 km WSW of Pāhala, Hawaii on October 17, 2023, with origin time 23:06 UTC. See the M3.0 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-10-17 2023-10-17 22:56:01 UTC | 4.5mb | 52 km NE of Shikotan, Russia 44.114°, 147.206° | 112.2 km | - | - | - | ✓ Reviewed | USGS → |
Reports of a magnitude 4.5 earthquake 52 km NE of Shikotan, Russia came in on October 17, 2023 at 22:56 UTC. The event was offshore. See the M4.5 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-10-17 2023-10-17 22:38:45 UTC | 4.5mb | Kermadec Islands region -28.954°, -177.092° | 52.7 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 4.5 seismic event took place in the Kermadec Islands region on October 17, 2023 at 22:38 UTC. See the M4.5 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-10-17 2023-10-17 22:31:58 UTC | 4.4mb | Kermadec Islands, New Zealand -29.235°, -177.600° | 66.8 km | 1 | - | - | ✓ Reviewed | USGS → |
On October 17, 2023, worldwide seismic activity registered a magnitude 4.4 earthquake near Kermadec Islands, New Zealand at 22:31 UTC. See the M4.4 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-10-17 2023-10-17 22:01:23 UTC | 4.5mb | 147 km ESE of Kandrian, Papua New Guinea -6.894°, 150.687° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
October 17, 2023 brought a magnitude 4.5 earthquake 147 km ESE of Kandrian, Papua New Guinea, logged at 22:01 UTC. See the M4.5 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-10-17 2023-10-17 21:58:27 UTC | 2.1md | 3 km SW of Pāhala, Hawaii 19.183°, -155.501° | 32.8 km | - | - | - | Auto | USGS → |
Reports of a magnitude 2.1 earthquake 3 km SW of Pāhala, Hawaii came in on October 17, 2023 at 21:58 UTC. It arrived roughly 19 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. | ||||||||
2023-10-17 2023-10-17 21:52:16 UTC | 5.2mb | Kermadec Islands region -29.212°, -176.096° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
On October 17, 2023, worldwide seismic activity registered a magnitude 5.2 earthquake in the Kermadec Islands region at 21:52 UTC. See the M5.2 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-10-17 2023-10-17 21:45:30 UTC | 4.3mb | 59 km W of San Antonio de los Cobres, Argentina -24.221°, -66.905° | 186.7 km | - | - | - | ✓ Reviewed | USGS → |
Reports of a magnitude 4.3 earthquake 59 km W of San Antonio de los Cobres, Argentina came in on October 17, 2023 at 21:45 UTC. The event was offshore. See the M4.3 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-10-17 2023-10-17 21:39:32 UTC | 4.1mb | 173 km NNW of Maubara, Timor Leste -7.089°, 124.815° | 542.3 km | - | - | - | ✓ Reviewed | USGS → |
On October 17, 2023, worldwide seismic activity registered a magnitude 4.1 earthquake 173 km NNW of Maubara, Timor Leste at 21:39 UTC. This is the deepest earthquake in the current dataset — a deep-focus event. See the M4.1 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-10-17 2023-10-17 21:12:56 UTC | 3.1ml | 27 km ESE of Wright, Wyoming 43.616°, -105.199° | 0.0 km | - | - | - | ✓ Reviewed | USGS → |
The USGS recorded this magnitude 3.1 earthquake 27 km ESE of Wright, Wyoming at 21:12 UTC on October 17, 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. | ||||||||
2023-10-17 2023-10-17 20:52:36 UTC | 4.2mwr | 82 km WSW of Coquimbo, Chile -30.313°, -72.094° | 8.4 km | - | - | - | ✓ Reviewed | USGS → |
Seismographs logged a magnitude 4.2 earthquake 82 km WSW of Coquimbo, Chile with origin time 20:52 UTC on October 17, 2023. See the M4.2 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-10-17 2023-10-17 20:41:51 UTC | 2.1ml(texnet) | 43 km NW of Toyah, Texas 31.608°, -104.096° | 6.8 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 2.1 seismic event took place 43 km NW of Toyah, Texas on October 17, 2023 at 20:41 UTC. The event was offshore. See the M2.1 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-10-17 2023-10-17 20:41:16 UTC | 3.3ml | Rat Islands, Aleutian Islands, Alaska 51.466°, 178.645° | 53.9 km | - | - | - | ✓ Reviewed | USGS → |
Seismographs logged a magnitude 3.3 earthquake near Rat Islands, Aleutian Islands, Alaska with origin time 20:41 UTC on October 17, 2023. See the M3.3 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-10-17 2023-10-17 20:41:11 UTC | 2.5ml | 11 km SW of Volcano, Hawaii 19.359°, -155.296° | 1.4 km | 1 | - | - | ✓ Reviewed | USGS → |
The USGS recorded this magnitude 2.5 earthquake 11 km SW of Volcano, Hawaii at 20:41 UTC on October 17, 2023. This very shallow event was close enough to the surface that even modest magnitudes can produce significant local shaking. See the M2.5 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-10-17 2023-10-17 20:35:56 UTC | 2.3ml | 16 km W of Searles Valley, CA 35.778°, -117.576° | 2.6 km | - | - | - | ✓ Reviewed | USGS → |
The USGS recorded this magnitude 2.3 earthquake 16 km W of Searles Valley, CA at 20:35 UTC on October 17, 2023. 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. | ||||||||
2023-10-17 2023-10-17 20:16:41 UTC | 3.5ml(texnet) | 55 km S of Whites City, New Mexico 31.676°, -104.370° | 6.1 km | 2 | IV | - | ✓ Reviewed | USGS → |
A magnitude 3.5 seismic event took place 55 km S of Whites City, New Mexico on October 17, 2023 at 20:16 UTC. The event was offshore. See the M3.5 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-10-17 2023-10-17 19:29:22 UTC | 2.6ml(texnet) | 55 km S of Whites City, New Mexico 31.675°, -104.408° | 6.8 km | - | - | - | ✓ Reviewed | USGS → |
Seismographs logged a magnitude 2.6 earthquake 55 km S of Whites City, New Mexico with origin time 19:29 UTC on October 17, 2023. The event was offshore. See the M2.6 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-10-17 2023-10-17 19:17:35 UTC | 4.5mb | 23 km S of Yolöten, Turkmenistan 37.086°, 62.331° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
On October 17, 2023 at 19:17 UTC, a magnitude 4.5 earthquake struck 23 km S of Yolöten, Turkmenistan. The event was offshore. See the M4.5 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-10-17 2023-10-17 19:02:36 UTC | 2.7ml | 59 km NE of King Cove, Alaska 55.405°, -161.597° | 112.1 km | - | - | - | ✓ Reviewed | USGS → |
October 17, 2023 brought a magnitude 2.7 earthquake 59 km NE of King Cove, Alaska, logged at 19:02 UTC. The event was offshore. See the M2.7 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-10-17 2023-10-17 18:47:40 UTC | 3.5md | Puerto Rico region 19.037°, -65.018° | 25.0 km | - | - | - | ✓ Reviewed | USGS → |
October 17, 2023 brought a magnitude 3.5 earthquake in the Puerto Rico region, logged at 18:47 UTC. See the M3.5 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-10-17 2023-10-17 18:35:03 UTC | 4.3mb | 72 km SSW of Intipucá, El Salvador 12.578°, -88.274° | 62.3 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 4.3 seismic event took place 72 km SSW of Intipucá, El Salvador on October 17, 2023 at 18:35 UTC. See the M4.3 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-10-17 2023-10-17 17:34:20 UTC | 2.4ml(texnet) | 13 km NNE of Hermleigh, Texas 32.742°, -100.681° | 7.9 km | - | - | - | ✓ Reviewed | USGS → |
October 17, 2023 brought a magnitude 2.4 earthquake 13 km NNE of Hermleigh, Texas, logged at 17:34 UTC. See the M2.4 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-10-17 2023-10-17 17:05:04 UTC | 3.7mb | 103 km ESE of Akutan, Alaska 53.687°, -164.393° | 35.0 km | - | - | - | ✓ Reviewed | USGS → |
This magnitude 3.7 event was detected 103 km ESE of Akutan, Alaska on October 17, 2023, with origin time 17:05 UTC. See the M3.7 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-10-17 2023-10-17 16:56:21 UTC | 2.3ml | 7 km SW of Volcano, Hawaii 19.387°, -155.278° | 1.9 km | - | - | - | ✓ Reviewed | USGS → |
This magnitude 2.3 event was detected 7 km SW of Volcano, Hawaii on October 17, 2023, with origin time 16:56 UTC. In the 72 hours after this event, the USGS recorded 3 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. | ||||||||
2023-10-17 2023-10-17 16:32:40 UTC | 2.4ml | 38 km SSE of Perryville, Alaska 55.575°, -159.011° | 45.8 km | - | - | - | ✓ Reviewed | USGS → |
On October 17, 2023 at 16:32 UTC, a magnitude 2.4 earthquake struck 38 km SSE of Perryville, Alaska. See the M2.4 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-10-17 2023-10-17 16:26:49 UTC | 5.3mww | 62 km NNW of Bandar Abbas, Iran 27.731°, 56.117° | 10.0 km | 5 | VI | green | ✓ Reviewed | USGS → |
Seismographs logged a magnitude 5.3 earthquake 62 km NNW of Bandar Abbas, Iran with origin time 16:26 UTC on October 17, 2023. Coming 11 hours after a magnitude 5.5 earthquake in the immediate vicinity, it is most likely an aftershock of that larger rupture. The USGS PAGER system assigned a green alert level for this event, signalling no significant casualties or damage expected. See the M5.3 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-10-17 2023-10-17 16:17:20 UTC | 2.2md | 10 km SSE of Guánica, Puerto Rico 17.884°, -66.870° | 12.5 km | - | - | - | ✓ Reviewed | USGS → |
This magnitude 2.2 event was detected 10 km SSE of Guánica, Puerto Rico on October 17, 2023, with origin time 16:17 UTC. This event falls inside the aftershock decay of a nearby magnitude 2.9 earthquake that occurred about 5 hours earlier. See the M2.2 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 17, 2023. Data includes all events of magnitude 1.0 or greater. Past earthquake data is considered final after review by USGS seismologists.