Earthquakes on September 16, 2023
240
EARTHQUAKES on September 16, 2023
24-hour UTC period · USGS data
LARGEST: M5.5 — Mid-Indian Ridge
10 km deep
Normal activitycompared to daily average (~250/day)
Magnitude Breakdown
M5.0+
4
M4.0–4.9
42
M3.0–3.9
10
M2.0–2.9
45
M1.0–1.9
139
Activity Summary
240
Total earthquakes
~250
Daily average
Normal
Activity level
4
M5.0+ events
Geographic Breakdown
Top Countries (International)
Significant Earthquakes (M4.5+)
5.5
Mid-Indian Ridge
13:47 UTC · 10.0 km deep
5.0
91 km ENE of Fef, Indonesia
21:17 UTC · 10.0 km deep
5.0
South Sandwich Islands region
17:31 UTC · 47.8 km deep
5.0
Kermadec Islands, New Zealand
02:01 UTC · 55.1 km deep
4.9
3 km SW of Cepitá, Colombia
13:29 UTC · 157.8 km deep
Felt by 1
4.9
190 km SSE of Sarangani, Philippines
10:04 UTC · 9.0 km deep
4.8
132 km ESE of Kimbe, Papua New Guinea
08:39 UTC · 35.0 km deep
4.8
200 km S of Pagar Alam, Indonesia
01:29 UTC · 31.4 km deep
Earthquake Map — September 16, 2023
All Earthquakes — September 16, 2023
Showing 30 of 101 (filtered from 240)
(Filtered to M2.0+. Change the magnitude filter to see smaller events.)
| Time ↓ | Mag ↕ | Location ↕ | Depth ↕ | Felt ↕ | MMI | Alert | Status | Details |
|---|---|---|---|---|---|---|---|---|
2023-09-16 2023-09-16 23:59:21 UTC | 4.1mb | 70 km SW of Nikolski, Alaska 52.431°, -169.482° | 35.0 km | - | II | - | ✓ Reviewed | USGS → |
On September 16, 2023 at 23:59 UTC, a magnitude 4.1 earthquake struck 70 km SW of Nikolski, Alaska. The event was offshore. See the M4.1 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-09-16 2023-09-16 23:53:11 UTC | 2.0ml | 157 km E of McCarthy, Alaska 61.340°, -139.977° | 7.1 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 2.0 seismic event took place 157 km E of McCarthy, Alaska on September 16, 2023 at 23:53 UTC. The event was offshore. See the M2.0 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-09-16 2023-09-16 23:44:58 UTC | 4.3mb | 22 km ESE of Hihifo, Tonga -16.061°, -173.621° | 117.6 km | - | - | - | ✓ Reviewed | USGS → |
At 23:44 UTC on September 16, 2023, a magnitude 4.3 tremor occurred 22 km ESE of Hihifo, Tonga. See the M4.3 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-09-16 2023-09-16 23:17:52 UTC | 4.3mb | 119 km S of Kundiawa, Papua New Guinea -7.101°, 144.968° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
The USGS recorded this magnitude 4.3 earthquake 119 km S of Kundiawa, Papua New Guinea at 23:17 UTC on September 16, 2023. The event was offshore. See the M4.3 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-09-16 2023-09-16 22:51:24 UTC | 4.5mb | 121 km NW of Türkmenbaşy, Turkmenistan 40.766°, 51.899° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
On September 16, 2023, worldwide seismic activity registered a magnitude 4.5 earthquake 121 km NW of Türkmenbaşy, Turkmenistan at 22:51 UTC. The event was offshore. See the M4.5 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-09-16 2023-09-16 22:44:25 UTC | 2.0md | 3 km SSE of P?hala, Hawaii 19.175°, -155.471° | 33.1 km | - | - | - | Auto | USGS → |
September 16, 2023 brought a magnitude 2.0 earthquake 3 km SSE of P?hala, Hawaii, logged at 22:44 UTC. It arrived roughly 20 hours after a larger magnitude 2.4 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. | ||||||||
2023-09-16 2023-09-16 21:48:50 UTC | 2.6ml | 1 km SSE of View Park-Windsor Hills, CA 33.989°, -118.346° | 11.6 km | 229 | - | - | ✓ Reviewed | USGS → |
On September 16, 2023 at 21:48 UTC, a magnitude 2.6 earthquake struck 1 km SSE of View Park-Windsor Hills, CA. See the M2.6 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-09-16 2023-09-16 21:46:17 UTC | 2.3md | 6 km WNW of Walker, CA 38.541°, -119.543° | 2.9 km | 2 | - | - | ✓ Reviewed | USGS → |
On September 16, 2023 at 21:46 UTC, a magnitude 2.3 earthquake struck 6 km WNW of Walker, CA. 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. | ||||||||
2023-09-16 2023-09-16 21:17:39 UTC | 5.0mb | 91 km ENE of Fef, Indonesia -0.486°, 133.193° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 5.0 earthquake was recorded 91 km ENE of Fef, Indonesia on September 16, 2023 at 21:17 UTC. See the M5.0 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-09-16 2023-09-16 21:14:01 UTC | 4.2mb | 116 km NNE of Lospalos, Timor Leste -7.626°, 127.546° | 157.2 km | - | - | - | ✓ Reviewed | USGS → |
At 21:14 UTC on September 16, 2023, a magnitude 4.2 tremor occurred 116 km NNE of Lospalos, Timor Leste. See the M4.2 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-09-16 2023-09-16 20:53:13 UTC | 4.6mb | 53 km NW of Sola, Vanuatu -13.565°, 167.170° | 227.2 km | - | - | - | ✓ Reviewed | USGS → |
September 16, 2023 brought a magnitude 4.6 earthquake 53 km NW of Sola, Vanuatu, logged at 20:53 UTC. The event was offshore. See the M4.6 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-09-16 2023-09-16 20:45:52 UTC | 2.1ml(texnet) | 37 km ENE of McKinney Acres, Texas 32.409°, -102.147° | 6.9 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 2.1 earthquake was recorded 37 km ENE of McKinney Acres, Texas on September 16, 2023 at 20:45 UTC. See the M2.1 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-09-16 2023-09-16 20:33:25 UTC | 2.1ml | 8 km NE of Hermleigh, Texas 32.689°, -100.696° | 6.1 km | - | - | - | ✓ Reviewed | USGS → |
Seismographs logged a magnitude 2.1 earthquake 8 km NE of Hermleigh, Texas with origin time 20:33 UTC on September 16, 2023. The event was offshore. See the M2.1 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-09-16 2023-09-16 20:06:27 UTC | 4.6mb | south of Tonga -24.187°, -175.977° | 35.0 km | - | - | - | ✓ Reviewed | USGS → |
On September 16, 2023 at 20:06 UTC, a magnitude 4.6 earthquake struck south of Tonga. See the M4.6 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-09-16 2023-09-16 19:52:43 UTC | 4.6mb | 104 km N of Nuku‘alofa, Tonga -20.196°, -175.303° | 160.4 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 4.6 earthquake was recorded 104 km N of Nuku‘alofa, Tonga on September 16, 2023 at 19:52 UTC. The event was offshore. See the M4.6 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-09-16 2023-09-16 19:42:09 UTC | 4.4mb | southeast Indian Ridge -43.478°, 92.210° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 4.4 seismic event took place near southeast Indian Ridge on September 16, 2023 at 19:42 UTC. See the M4.4 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-09-16 2023-09-16 19:14:12 UTC | 4.6mb | southeast of Easter Island -41.202°, -89.157° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
Seismographs logged a magnitude 4.6 earthquake southeast of Easter Island with origin time 19:14 UTC on September 16, 2023. See the M4.6 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-09-16 2023-09-16 19:08:56 UTC | 4.4mwr | 81 km W of San Antonio de los Cobres, Argentina -24.344°, -67.107° | 166.4 km | - | - | - | ✓ Reviewed | USGS → |
September 16, 2023 brought a magnitude 4.4 earthquake 81 km W of San Antonio de los Cobres, Argentina, logged at 19:08 UTC. The event was offshore. See the M4.4 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-09-16 2023-09-16 19:06:44 UTC | 2.8md | 5 km ESE of Tallaboa, Puerto Rico 17.977°, -66.672° | 17.8 km | - | - | - | ✓ Reviewed | USGS → |
On September 16, 2023 at 19:06 UTC, a magnitude 2.8 earthquake struck 5 km ESE of Tallaboa, Puerto Rico. See the M2.8 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-09-16 2023-09-16 18:55:41 UTC | 2.5md | 6 km ENE of La Parguera, Puerto Rico 17.992°, -66.992° | 10.7 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 2.5 earthquake was recorded 6 km ENE of La Parguera, Puerto Rico on September 16, 2023 at 18:55 UTC. Coming 11 hours after a magnitude 3.6 earthquake in the immediate vicinity, it is most likely an aftershock of that larger rupture. See the M2.5 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-09-16 2023-09-16 18:28:17 UTC | 4.5mb | 191 km ESE of Kuril’sk, Russia 44.738°, 150.205° | 35.0 km | - | - | - | ✓ Reviewed | USGS → |
At 18:28 UTC on September 16, 2023, a magnitude 4.5 tremor occurred 191 km ESE of Kuril’sk, Russia. See the M4.5 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-09-16 2023-09-16 18:20:04 UTC | 4.1mb | 122 km SSW of Modisi, Indonesia -0.476°, 123.837° | 11.5 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 4.1 earthquake was recorded 122 km SSW of Modisi, Indonesia on September 16, 2023 at 18:20 UTC. See the M4.1 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-09-16 2023-09-16 18:17:42 UTC | 2.2ml | 5 km S of Pāhala, Hawaii 19.149°, -155.478° | 32.4 km | - | - | - | Auto | USGS → |
The USGS recorded this magnitude 2.2 earthquake 5 km S of Pāhala, Hawaii at 18:17 UTC on September 16, 2023. This event falls inside the aftershock decay of a nearby magnitude 2.4 earthquake that occurred about 16 hours earlier. The event was offshore. See the M2.2 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-09-16 2023-09-16 17:35:23 UTC | 2.1ml | 78 km SE of King Cove, Alaska 54.666°, -161.303° | 15.0 km | - | - | - | ✓ Reviewed | USGS → |
On September 16, 2023, worldwide seismic activity registered a magnitude 2.1 earthquake 78 km SE of King Cove, Alaska at 17:35 UTC. The event was offshore. See the M2.1 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-09-16 2023-09-16 17:31:13 UTC | 5.0mb | South Sandwich Islands region -57.954°, -25.284° | 47.8 km | - | - | - | ✓ Reviewed | USGS → |
Seismographs logged a magnitude 5.0 earthquake in the South Sandwich Islands region with origin time 17:31 UTC on September 16, 2023. See the M5.0 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-09-16 2023-09-16 16:49:57 UTC | 2.6ml | 14 km NNE of Cabazon, CA 34.033°, -116.736° | 12.0 km | 14 | - | - | ✓ Reviewed | USGS → |
Reports of a magnitude 2.6 earthquake 14 km NNE of Cabazon, CA came in on September 16, 2023 at 16:49 UTC. See the M2.6 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-09-16 2023-09-16 16:10:42 UTC | 2.3md | 5 km S of Pāhala, Hawaii 19.152°, -155.473° | 32.3 km | - | - | - | Auto | USGS → |
On September 16, 2023, worldwide seismic activity registered a magnitude 2.3 earthquake 5 km S of Pāhala, Hawaii at 16:10 UTC. Coming 14 hours after a magnitude 2.4 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. | ||||||||
2023-09-16 2023-09-16 15:56:48 UTC | 4.3mb | 23 km E of Atlasovo, Russia 55.637°, 160.012° | 186.7 km | - | - | - | ✓ Reviewed | USGS → |
This magnitude 4.3 event was detected 23 km E of Atlasovo, Russia on September 16, 2023, with origin time 15:56 UTC. The event was offshore. See the M4.3 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-09-16 2023-09-16 15:55:34 UTC | 2.3ml | 52 km SSW of Whites City, New Mexico 31.719°, -104.517° | 5.5 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 2.3 earthquake was recorded 52 km SSW of Whites City, New Mexico on September 16, 2023 at 15:55 UTC. See the M2.3 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-09-16 2023-09-16 15:26:03 UTC | 4.5mb | Kermadec Islands, New Zealand -30.129°, -177.395° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
The USGS recorded this magnitude 4.5 earthquake near Kermadec Islands, New Zealand at 15:26 UTC on September 16, 2023. See the M4.5 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 16, 2023. Data includes all events of magnitude 1.0 or greater. Past earthquake data is considered final after review by USGS seismologists.