Earthquakes on September 8, 2023
322
EARTHQUAKES on September 8, 2023
24-hour UTC period · USGS data
LARGEST: M6.8 — Al Haouz, Morocco
19 km deep · 1,988 people felt it
Elevated activitycompared to daily average (~250/day)
Magnitude Breakdown
M5.0+
10
M4.0–4.9
44
M3.0–3.9
11
M2.0–2.9
59
M1.0–1.9
198
Activity Summary
322
Total earthquakes
~250
Daily average
Elevated
Activity level
10
M5.0+ events
Geographic Breakdown
By US State
Significant Earthquakes (M4.5+)
6.8
Al Haouz, Morocco
22:11 UTC · 19.0 km deep
Felt by 1,988
6.6
south of the Kermadec Islands
09:09 UTC · 79.0 km deep
Felt by 22
5.8
5 km NNW of Emiliano Zapata, Mexico
16:37 UTC · 13.0 km deep
Felt by 57
5.6
12 km W of Emiliano Zapata, Mexico
15:53 UTC · 14.0 km deep
Felt by 37
5.2
152 km WNW of Fangale’ounga, Tonga
16:34 UTC · 216.6 km deep
5.2
Maug Islands region, Northern Mariana Islands
10:54 UTC · 133.8 km deep
5.2
37 km ESE of Ōfunato, Japan
09:28 UTC · 40.5 km deep
Felt by 6
5.1
92 km N of Tatsugō, Japan
18:08 UTC · 11.4 km deep
Earthquake Map — September 8, 2023
All Earthquakes — September 8, 2023
Showing 30 of 124 (filtered from 322)
(Filtered to M2.0+. Change the magnitude filter to see smaller events.)
| Time ↓ | Mag ↕ | Location ↕ | Depth ↕ | Felt ↕ | MMI | Alert | Status | Details |
|---|---|---|---|---|---|---|---|---|
2023-09-08 2023-09-08 23:40:28 UTC | 3.1ml | 8 km E of Yucaipa, CA 34.033°, -116.954° | 6.9 km | 61 | III | - | ✓ Reviewed | USGS → |
At 23:40 UTC on September 8, 2023, a magnitude 3.1 tremor occurred 8 km E of Yucaipa, CA. The event was offshore. See the M3.1 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-09-08 2023-09-08 23:35:04 UTC | 3.1ml | 85 km NNW of Karluk, Alaska 58.255°, -155.117° | 4.6 km | - | III | - | ✓ Reviewed | USGS → |
On September 8, 2023, worldwide seismic activity registered a magnitude 3.1 earthquake 85 km NNW of Karluk, Alaska at 23:35 UTC. 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. | ||||||||
2023-09-08 2023-09-08 23:19:21 UTC | 2.1ml | 33 km NW of Valdez, Alaska 61.316°, -146.850° | 14.1 km | - | - | - | ✓ Reviewed | USGS → |
On September 8, 2023, worldwide seismic activity registered a magnitude 2.1 earthquake 33 km NW of Valdez, Alaska at 23:19 UTC. The event was offshore. See the M2.1 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-09-08 2023-09-08 23:17:28 UTC | 4.3mb | 48 km SSE of Port-Vila, Vanuatu -18.149°, 168.473° | 113.9 km | 1 | - | - | ✓ Reviewed | USGS → |
The USGS recorded this magnitude 4.3 earthquake 48 km SSE of Port-Vila, Vanuatu at 23:17 UTC on September 8, 2023. See the M4.3 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-09-08 2023-09-08 22:57:04 UTC | 4.4mb | 83 km NNW of Ternate, Indonesia 1.455°, 127.029° | 122.1 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 4.4 seismic event took place 83 km NNW of Ternate, Indonesia on September 8, 2023 at 22:57 UTC. See the M4.4 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-09-08 2023-09-08 22:51:47 UTC | 2.7md | 11 km WSW of Fall River Mills, CA 40.966°, -121.558° | 13.6 km | 3 | - | - | ✓ Reviewed | USGS → |
On September 8, 2023 at 22:51 UTC, a magnitude 2.7 earthquake struck 11 km WSW of Fall River Mills, CA. This event falls inside the aftershock decay of a nearby magnitude 5.0 earthquake that occurred about 5 hours earlier. See the M2.7 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-09-08 2023-09-08 22:50:02 UTC | 4.5mb | 157 km SSE of Sarangani, Philippines 4.186°, 126.195° | 115.3 km | - | - | - | ✓ Reviewed | USGS → |
On September 8, 2023 at 22:50 UTC, a magnitude 4.5 earthquake struck 157 km SSE of Sarangani, Philippines. See the M4.5 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-09-08 2023-09-08 22:47:02 UTC | 4.9mb | 102 km NNW of Tatsugō, Japan 29.334°, 129.282° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 4.9 earthquake was recorded 102 km NNW of Tatsugō, Japan on September 8, 2023 at 22:47 UTC. Coming 5 hours after a magnitude 5.1 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. | ||||||||
2023-09-08 2023-09-08 22:39:57 UTC | 4.2mb | south of the Kermadec Islands -32.726°, -178.342° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 4.2 earthquake was recorded south of the Kermadec Islands on September 8, 2023 at 22:39 UTC. See the M4.2 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-09-08 2023-09-08 22:30:44 UTC | 4.9mb | 50 km WSW of Oukaïmedene, Morocco 31.036°, -8.352° | 10.0 km | 65 | - | - | ✓ Reviewed | USGS → |
Seismographs logged a magnitude 4.9 earthquake 50 km WSW of Oukaïmedene, Morocco with origin time 22:30 UTC on September 8, 2023. It arrived roughly 1 hours after a larger magnitude 6.8 mainshock in the same 20 km area, placing it within the typical aftershock window. See the M4.9 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-09-08 2023-09-08 22:17:13 UTC | 2.8md | 12 km NE of Burney, CA 40.959°, -121.570° | 13.3 km | 3 | - | - | ✓ Reviewed | USGS → |
Reports of a magnitude 2.8 earthquake 12 km NE of Burney, CA came in on September 8, 2023 at 22:17 UTC. This event falls inside the aftershock decay of a nearby magnitude 5.0 earthquake that occurred about 5 hours earlier. The event was offshore. See the M2.8 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-09-08 2023-09-08 22:15:06 UTC | 3.6mb | 64 km E of Nikolski, Alaska 52.913°, -167.904° | 35.0 km | - | I | - | ✓ Reviewed | USGS → |
At 22:15 UTC on September 8, 2023, a magnitude 3.6 tremor occurred 64 km E of Nikolski, Alaska. The event was offshore. See the M3.6 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-09-08 2023-09-08 22:11:01 UTC | 6.8mww | Al Haouz, Morocco 31.058°, -8.385° | 19.0 km | 1,988 | VIII | red | ✓ Reviewed | USGS → |
On September 8, 2023 at 22:11 UTC, a magnitude 6.8 earthquake struck near Al Haouz, Morocco. The USGS PAGER system assigned a red alert level for this event, signalling widespread severe impact likely. It is the largest earthquake currently listed for worldwide seismic activity on September 8, 2023. See the M6.8 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-09-08 2023-09-08 22:09:49 UTC | 4.7mb | 47 km N of Tarama, Japan 25.087°, 124.791° | 75.7 km | - | - | - | ✓ Reviewed | USGS → |
At 22:09 UTC on September 8, 2023, a magnitude 4.7 tremor occurred 47 km N of Tarama, Japan. The event was offshore. See the M4.7 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-09-08 2023-09-08 21:57:36 UTC | 4.2mb | Fiji region -20.674°, -178.474° | 524.5 km | - | - | - | ✓ Reviewed | USGS → |
Seismographs logged a magnitude 4.2 earthquake in the Fiji region with origin time 21:57 UTC on September 8, 2023. This deep-focus earthquake originated far below the brittle crust, deep inside the mantle. See the M4.2 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-09-08 2023-09-08 21:12:03 UTC | 2.1ml | 15 km NE of Hermleigh, Texas 32.749°, -100.662° | 9.0 km | - | - | - | ✓ Reviewed | USGS → |
At 21:12 UTC on September 8, 2023, a magnitude 2.1 tremor occurred 15 km NE of Hermleigh, Texas. The event was offshore. See the M2.1 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-09-08 2023-09-08 21:07:28 UTC | 2.2ml | 48 km W of Mentone, Texas 31.731°, -104.105° | 7.7 km | - | - | - | ✓ Reviewed | USGS → |
This magnitude 2.2 event was detected 48 km W of Mentone, Texas on September 8, 2023, with origin time 21:07 UTC. It arrived roughly 19 hours after a larger magnitude 2.4 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. | ||||||||
2023-09-08 2023-09-08 21:04:30 UTC | 4.0ml | 32 km SW of Añelo, Argentina -38.589°, -69.020° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
Seismographs logged a magnitude 4.0 earthquake 32 km SW of Añelo, Argentina with origin time 21:04 UTC on September 8, 2023. The event was offshore. See the M4.0 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-09-08 2023-09-08 20:55:02 UTC | 4.5mb | 107 km SE of Kuqa, China 40.974°, 83.750° | 13.0 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 4.5 earthquake was recorded 107 km SE of Kuqa, China on September 8, 2023 at 20:55 UTC. The event was offshore. See the M4.5 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-09-08 2023-09-08 20:46:17 UTC | 2.0ml | 40 km ESE of Nenana, Alaska 64.413°, -148.318° | 16.2 km | - | - | - | ✓ Reviewed | USGS → |
The USGS recorded this magnitude 2.0 earthquake 40 km ESE of Nenana, Alaska at 20:46 UTC on September 8, 2023. See the M2.0 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-09-08 2023-09-08 20:45:50 UTC | 4.4mb | 14 km NW of Palora, Ecuador -1.614°, -78.065° | 159.6 km | - | - | - | ✓ Reviewed | USGS → |
September 8, 2023 brought a magnitude 4.4 earthquake 14 km NW of Palora, Ecuador, logged at 20:45 UTC. The event was offshore. See the M4.4 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-09-08 2023-09-08 20:32:00 UTC | 5.0mb | southern Mid-Atlantic Ridge -32.193°, -13.809° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 5.0 seismic event took place near southern Mid-Atlantic Ridge on September 8, 2023 at 20:32 UTC. See the M5.0 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-09-08 2023-09-08 20:03:48 UTC | 3.5ml | 9 km E of Wright, Wyoming 43.751°, -105.380° | 0.0 km | - | - | - | ✓ Reviewed | USGS → |
This magnitude 3.5 event was detected 9 km E of Wright, Wyoming on September 8, 2023, with origin time 20:03 UTC. This very shallow event was close enough to the surface that even modest magnitudes can produce significant local shaking. See the M3.5 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-09-08 2023-09-08 20:02:31 UTC | 2.4md | 42 km N of Toms Place, CA 37.932°, -118.592° | 9.8 km | - | - | - | ✓ Reviewed | USGS → |
The USGS recorded this magnitude 2.4 earthquake 42 km N of Toms Place, CA at 20:02 UTC on September 8, 2023. The event was offshore. See the M2.4 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-09-08 2023-09-08 19:57:31 UTC | 2.1ml | 47 km W of Mentone, Texas 31.734°, -104.101° | 6.6 km | - | - | - | ✓ Reviewed | USGS → |
The USGS recorded this magnitude 2.1 earthquake 47 km W of Mentone, Texas at 19:57 UTC on September 8, 2023. It arrived roughly 17 hours after a larger magnitude 2.4 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. | ||||||||
2023-09-08 2023-09-08 19:42:51 UTC | 2.0ml | 7 km SW of Volcano, Hawaii 19.386°, -155.278° | 1.6 km | - | - | - | ✓ Reviewed | USGS → |
On September 8, 2023, worldwide seismic activity registered a magnitude 2.0 earthquake 7 km SW of Volcano, Hawaii at 19:42 UTC. Coming 5 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 M2.0 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-09-08 2023-09-08 19:33:41 UTC | 4.8mb | 204 km NNE of Shi Yomi, India 30.335°, 94.824° | 34.9 km | - | - | - | ✓ Reviewed | USGS → |
On September 8, 2023, worldwide seismic activity registered a magnitude 4.8 earthquake 204 km NNE of Shi Yomi, India at 19:33 UTC. See the M4.8 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-09-08 2023-09-08 19:32:24 UTC | 4.7mb | 95 km N of Tatsugō, Japan 29.297°, 129.450° | 11.9 km | - | - | - | ✓ Reviewed | USGS → |
The USGS recorded this magnitude 4.7 earthquake 95 km N of Tatsugō, Japan at 19:32 UTC on September 8, 2023. It arrived roughly 1 hours after a larger magnitude 5.1 mainshock in the same 20 km area, placing it within the typical aftershock window. The event was offshore. See the M4.7 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-09-08 2023-09-08 19:27:52 UTC | 4.5mb | 17 km SW of Acapulco de Juárez, Mexico 16.759°, -100.039° | 10.0 km | 3 | - | - | ✓ Reviewed | USGS → |
Seismographs logged a magnitude 4.5 earthquake 17 km SW of Acapulco de Juárez, Mexico with origin time 19:27 UTC on September 8, 2023. The event was offshore. See the M4.5 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-09-08 2023-09-08 18:58:48 UTC | 2.1md | 11 km WSW of Fall River Mills, CA 40.957°, -121.560° | 13.7 km | - | - | - | ✓ Reviewed | USGS → |
This magnitude 2.1 event was detected 11 km WSW of Fall River Mills, CA on September 8, 2023, with origin time 18:58 UTC. This event falls inside the aftershock decay of a nearby magnitude 5.0 earthquake that occurred about 2 hours earlier. See the M2.1 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 8, 2023. Data includes all events of magnitude 1.0 or greater. Past earthquake data is considered final after review by USGS seismologists.