Earthquakes on September 9, 2023
254
EARTHQUAKES on September 9, 2023
24-hour UTC period · USGS data
LARGEST: M6.0 — 101 km N of Palu, Indonesia
13 km deep · 2 people felt it
Normal activitycompared to daily average (~250/day)
Magnitude Breakdown
M5.0+
4
M4.0–4.9
42
M3.0–3.9
16
M2.0–2.9
56
M1.0–1.9
136
Activity Summary
254
Total earthquakes
~250
Daily average
Normal
Activity level
4
M5.0+ events
Significant Earthquakes (M4.5+)
6.0
101 km N of Palu, Indonesia
14:43 UTC · 13.0 km deep
Felt by 2
5.8
central East Pacific Rise
03:09 UTC · 10.0 km deep
5.6
176 km NNE of Gili Air, Indonesia
00:06 UTC · 512.8 km deep
Felt by 10
5.0
81 km NNW of Isangel, Vanuatu
00:45 UTC · 164.4 km deep
Felt by 1
4.9
south of Tonga
11:52 UTC · 10.0 km deep
4.9
south of the Kermadec Islands
02:38 UTC · 10.0 km deep
4.8
Rat Islands, Aleutian Islands, Alaska
18:06 UTC · 75.9 km deep
4.8
19 km ENE of Lāla, India
10:18 UTC · 47.8 km deep
Felt by 8
Earthquake Map — September 9, 2023
All Earthquakes — September 9, 2023
Showing 30 of 118 (filtered from 254)
(Filtered to M2.0+. Change the magnitude filter to see smaller events.)
| Time ↓ | Mag ↕ | Location ↕ | Depth ↕ | Felt ↕ | MMI | Alert | Status | Details |
|---|---|---|---|---|---|---|---|---|
2023-09-09 2023-09-09 23:49:39 UTC | 2.6ml | 47 km W of Mentone, Texas 31.735°, -104.100° | 7.4 km | - | - | - | ✓ Reviewed | USGS → |
On September 9, 2023 at 23:49 UTC, a magnitude 2.6 earthquake struck 47 km W of Mentone, Texas. The event was offshore. See the M2.6 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-09-09 2023-09-09 23:40:57 UTC | 4.5mb | Galapagos Triple Junction region 1.940°, -102.146° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
On September 9, 2023 at 23:40 UTC, a magnitude 4.5 earthquake struck in the Galapagos Triple Junction region. See the M4.5 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-09-09 2023-09-09 23:14:57 UTC | 4.4mb | south of the Kermadec Islands -33.435°, -178.642° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
September 9, 2023 brought a magnitude 4.4 earthquake south of the Kermadec Islands, logged at 23:14 UTC. Coming 11 hours after a magnitude 4.6 earthquake in the immediate vicinity, it is most likely an aftershock of that larger rupture. See the M4.4 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-09-09 2023-09-09 23:05:28 UTC | 2.1ml | 68 km SW of Adak, Alaska 51.475°, -177.384° | 32.2 km | - | - | - | ✓ Reviewed | USGS → |
Seismographs logged a magnitude 2.1 earthquake 68 km SW of Adak, Alaska with origin time 23:05 UTC on September 9, 2023. The event was offshore. See the M2.1 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-09-09 2023-09-09 22:56:58 UTC | 4.0mb | Bonin Islands, Japan region 26.462°, 140.518° | 458.4 km | - | - | - | ✓ Reviewed | USGS → |
On September 9, 2023, worldwide seismic activity registered a magnitude 4.0 earthquake in the Bonin Islands, Japan region at 22:56 UTC. 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. | ||||||||
2023-09-09 2023-09-09 22:50:17 UTC | 2.1ml | 59 km NW of Aleneva, Alaska 58.420°, -153.649° | 70.2 km | - | - | - | ✓ Reviewed | USGS → |
On September 9, 2023, worldwide seismic activity registered a magnitude 2.1 earthquake 59 km NW of Aleneva, Alaska at 22:50 UTC. The event was offshore. See the M2.1 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-09-09 2023-09-09 22:43:04 UTC | 2.2ml | 58 km NW of Toyah, Texas 31.647°, -104.279° | 6.9 km | - | - | - | ✓ Reviewed | USGS → |
On September 9, 2023, worldwide seismic activity registered a magnitude 2.2 earthquake 58 km NW of Toyah, Texas at 22:43 UTC. It arrived roughly 9 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 M2.2 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-09-09 2023-09-09 22:27:21 UTC | 2.3ml | 21 km SW of Coyanosa, Texas 31.128°, -103.252° | 1.0 km | - | - | - | ✓ Reviewed | USGS → |
At 22:27 UTC on September 9, 2023, a magnitude 2.3 tremor occurred 21 km SW of Coyanosa, Texas. 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. | ||||||||
2023-09-09 2023-09-09 22:13:15 UTC | 2.5ml | 64 km SSE of Cantwell, Alaska 62.877°, -148.363° | 59.8 km | 1 | - | - | ✓ Reviewed | USGS → |
The USGS recorded this magnitude 2.5 earthquake 64 km SSE of Cantwell, Alaska at 22:13 UTC on September 9, 2023. See the M2.5 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-09-09 2023-09-09 22:07:34 UTC | 2.7ml | 79 km ESE of Adak, Alaska 51.543°, -175.609° | 35.0 km | - | - | - | ✓ Reviewed | USGS → |
Reports of a magnitude 2.7 earthquake 79 km ESE of Adak, Alaska came in on September 9, 2023 at 22:07 UTC. See the M2.7 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-09-09 2023-09-09 22:06:52 UTC | 2.6ml | 70 km NNE of Punta Cana, Dominican Republic 19.192°, -68.212° | 20.9 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 2.6 earthquake was recorded 70 km NNE of Punta Cana, Dominican Republic on September 9, 2023 at 22:06 UTC. See the M2.6 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-09-09 2023-09-09 21:57:49 UTC | 4.5mb | 119 km SE of Alo, Wallis and Futuna -15.130°, -177.387° | 377.7 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 4.5 earthquake was recorded 119 km SE of Alo, Wallis and Futuna on September 9, 2023 at 21:57 UTC. This deep-focus earthquake originated far below the brittle crust, deep inside the mantle. See the M4.5 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-09-09 2023-09-09 21:48:32 UTC | 2.3md | 3 km S of Pāhala, Hawaii 19.176°, -155.479° | 32.5 km | - | - | - | Auto | USGS → |
On September 9, 2023 at 21:48 UTC, a magnitude 2.3 earthquake struck 3 km S of Pāhala, Hawaii. It arrived roughly 20 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 M2.3 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-09-09 2023-09-09 21:39:12 UTC | 2.0ml | 67 km NW of Arctic Village, Alaska 68.544°, -146.713° | 1.0 km | - | - | - | ✓ Reviewed | USGS → |
On September 9, 2023, worldwide seismic activity registered a magnitude 2.0 earthquake 67 km NW of Arctic Village, Alaska at 21:39 UTC. 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. | ||||||||
2023-09-09 2023-09-09 21:35:57 UTC | 2.9ml | 43 km ENE of Ensenada, B.C., MX 32.040°, -116.211° | 16.2 km | - | - | - | ✓ Reviewed | USGS → |
On September 9, 2023, worldwide seismic activity registered a magnitude 2.9 earthquake 43 km ENE of Ensenada, B.C., MX at 21:35 UTC. See the M2.9 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-09-09 2023-09-09 21:23:30 UTC | 2.3md | 3 km S of Guánica, Puerto Rico 17.945°, -66.906° | 16.5 km | - | - | - | ✓ Reviewed | USGS → |
Seismographs logged a magnitude 2.3 earthquake 3 km S of Guánica, Puerto Rico with origin time 21:23 UTC on September 9, 2023. This event falls inside the aftershock decay of a nearby magnitude 3.0 earthquake that occurred about 15 hours earlier. The event was offshore. See the M2.3 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-09-09 2023-09-09 21:16:39 UTC | 3.1ml | 264 km SW of Adak, Alaska 49.924°, -178.778° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
On September 9, 2023 at 21:16 UTC, a magnitude 3.1 earthquake struck 264 km SW of Adak, Alaska. The event was offshore. See the M3.1 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-09-09 2023-09-09 21:05:59 UTC | 2.1md | 6 km WSW of Tellico Village, Tennessee 35.662°, -84.327° | 8.8 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 2.1 seismic event took place 6 km WSW of Tellico Village, Tennessee on September 9, 2023 at 21:05 UTC. See the M2.1 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-09-09 2023-09-09 20:34:46 UTC | 2.1ml | 7 km SW of Volcano, Hawaii 19.388°, -155.277° | 1.6 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 2.1 earthquake was recorded 7 km SW of Volcano, Hawaii on September 9, 2023 at 20:34 UTC. Coming 7 hours after a magnitude 2.8 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. | ||||||||
2023-09-09 2023-09-09 20:28:32 UTC | 3.0ml | 214 km WSW of Adak, Alaska 50.900°, -179.293° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 3.0 earthquake was recorded 214 km WSW of Adak, Alaska on September 9, 2023 at 20:28 UTC. See the M3.0 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-09-09 2023-09-09 20:23:11 UTC | 3.2ml | 250 km WSW of Adak, Alaska 51.454°, 179.810° | 58.9 km | - | - | - | ✓ Reviewed | USGS → |
At 20:23 UTC on September 9, 2023, a magnitude 3.2 tremor occurred 250 km WSW of Adak, Alaska. See the M3.2 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-09-09 2023-09-09 20:16:04 UTC | 2.5md | 3 km SW of Indios, Puerto Rico 17.976°, -66.848° | 13.1 km | - | - | - | ✓ Reviewed | USGS → |
This magnitude 2.5 event was detected 3 km SW of Indios, Puerto Rico on September 9, 2023, with origin time 20:16 UTC. This event falls inside the aftershock decay of a nearby magnitude 3.0 earthquake that occurred about 14 hours earlier. The event was offshore. See the M2.5 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-09-09 2023-09-09 20:03:14 UTC | 4.0mb | 29 km SSW of Melipilla, Chile -33.945°, -71.309° | 48.7 km | 4 | - | - | ✓ Reviewed | USGS → |
At 20:03 UTC on September 9, 2023, a magnitude 4.0 tremor occurred 29 km SSW of Melipilla, Chile. See the M4.0 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-09-09 2023-09-09 19:52:28 UTC | 3.5ml | 10 km ENE of Koppies, South Africa -27.195°, 27.664° | 5.0 km | 6 | - | - | ✓ Reviewed | USGS → |
A magnitude 3.5 seismic event took place 10 km ENE of Koppies, South Africa on September 9, 2023 at 19:52 UTC. See the M3.5 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-09-09 2023-09-09 19:33:57 UTC | 2.0ml | 36 km W of Petersville, Alaska 62.507°, -151.468° | 86.2 km | - | - | - | ✓ Reviewed | USGS → |
At 19:33 UTC on September 9, 2023, a magnitude 2.0 tremor occurred 36 km W of Petersville, Alaska. The event was offshore. See the M2.0 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-09-09 2023-09-09 19:23:49 UTC | 4.1mb | 157 km W of Abepura, Indonesia -2.377°, 139.233° | 30.5 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 4.1 earthquake was recorded 157 km W of Abepura, Indonesia on September 9, 2023 at 19:23 UTC. The event was offshore. See the M4.1 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-09-09 2023-09-09 19:07:47 UTC | 4.6mb | Kermadec Islands region -29.793°, -176.344° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
On September 9, 2023, worldwide seismic activity registered a magnitude 4.6 earthquake in the Kermadec Islands region at 19:07 UTC. See the M4.6 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-09-09 2023-09-09 19:06:08 UTC | 2.6ml | Island of Hawaii, Hawaii 19.405°, -155.263° | 0.0 km | 1 | - | - | ✓ Reviewed | USGS → |
At 19:06 UTC on September 9, 2023, a magnitude 2.6 tremor occurred near Island of Hawaii, Hawaii. Coming 5 hours after a magnitude 2.8 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 M2.6 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-09-09 2023-09-09 18:49:36 UTC | 2.1ml | 5 km SW of Volcano, Hawaii 19.407°, -155.264° | 0.1 km | - | - | - | ✓ Reviewed | USGS → |
Reports of a magnitude 2.1 earthquake 5 km SW of Volcano, Hawaii came in on September 9, 2023 at 18:49 UTC. This event falls inside the aftershock decay of a nearby magnitude 2.8 earthquake that occurred about 5 hours earlier. 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. | ||||||||
2023-09-09 2023-09-09 18:21:29 UTC | 4.6mb | 194 km NNE of Kindu, Democratic Republic of the Congo -1.359°, 26.685° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
At 18:21 UTC on September 9, 2023, a magnitude 4.6 tremor occurred 194 km NNE of Kindu, Democratic Republic of the Congo. 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 September 9, 2023. Data includes all events of magnitude 1.0 or greater. Past earthquake data is considered final after review by USGS seismologists.