Earthquakes on September 12, 2021
309
EARTHQUAKES on September 12, 2021
24-hour UTC period · USGS data
LARGEST: M5.4 — 206 km NW of Sola, Vanuatu
43 km deep
Elevated activitycompared to daily average (~250/day)
Magnitude Breakdown
M5.0+
4
M4.0–4.9
41
M3.0–3.9
11
M2.0–2.9
78
M1.0–1.9
175
Activity Summary
309
Total earthquakes
~250
Daily average
Elevated
Activity level
4
M5.0+ events
Geographic Breakdown
By US State
Top Countries (International)
Significant Earthquakes (M4.5+)
5.4
206 km NW of Sola, Vanuatu
02:57 UTC · 42.8 km deep
5.3
234 km NNW of Kuril’sk, Russia
02:32 UTC · 358.0 km deep
Felt by 1
5.2
79 km NW of Hihifo, Tonga
11:57 UTC · 187.5 km deep
5.0
46 km WNW of Pariaman, Indonesia
09:02 UTC · 87.0 km deep
4.8
South Shetland Islands
03:58 UTC · 10.0 km deep
4.7
132 km SW of Merizo Village, Guam
22:57 UTC · 10.0 km deep
4.7
160 km S of False Pass, Alaska
17:03 UTC · 10.0 km deep
4.7
238 km NNE of Tobelo, Indonesia
13:34 UTC · 10.0 km deep
Earthquake Map — September 12, 2021
All Earthquakes — September 12, 2021
Showing 30 of 134 (filtered from 309)
(Filtered to M2.0+. Change the magnitude filter to see smaller events.)
| Time ↓ | Mag ↕ | Location ↕ | Depth ↕ | Felt ↕ | MMI | Alert | Status | Details |
|---|---|---|---|---|---|---|---|---|
2021-09-12 2021-09-12 23:42:08 UTC | 2.4ml | 70 km SSW of Kaktovik, Alaska 69.555°, -144.391° | 4.3 km | - | - | - | ✓ Reviewed | USGS → |
Reports of a magnitude 2.4 earthquake 70 km SSW of Kaktovik, Alaska came in on September 12, 2021 at 23:42 UTC. This very shallow event was close enough to the surface that even modest magnitudes can produce significant local shaking. See the M2.4 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-09-12 2021-09-12 23:32:36 UTC | 4.5mb | south of Java, Indonesia -11.203°, 112.369° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
This magnitude 4.5 event was detected south of Java, Indonesia on September 12, 2021, with origin time 23:32 UTC. See the M4.5 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-09-12 2021-09-12 23:20:21 UTC | 3.0ml | 23 km WNW of Mentone, Texas 31.764°, -103.833° | 6.9 km | - | - | - | ✓ Reviewed | USGS → |
At 23:20 UTC on September 12, 2021, a magnitude 3.0 tremor occurred 23 km WNW of Mentone, Texas. See the M3.0 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-09-12 2021-09-12 23:15:45 UTC | 2.1ml | 53 km NW of Toyah, Texas 31.617°, -104.227° | 7.0 km | - | - | - | ✓ Reviewed | USGS → |
This magnitude 2.1 event was detected 53 km NW of Toyah, Texas on September 12, 2021, with origin time 23:15 UTC. Coming 10 hours after a magnitude 3.8 earthquake in the immediate vicinity, it is most likely an aftershock of that larger rupture. The event was offshore. See the M2.1 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-09-12 2021-09-12 23:06:40 UTC | 2.8ml | 28 km SSE of Mina, Nevada 38.156°, -117.976° | 7.2 km | - | - | - | ✓ Reviewed | USGS → |
September 12, 2021 brought a magnitude 2.8 earthquake 28 km SSE of Mina, Nevada, logged at 23:06 UTC. See the M2.8 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-09-12 2021-09-12 22:57:03 UTC | 4.7mb | 132 km SW of Merizo Village, Guam 12.274°, 143.991° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
The USGS recorded this magnitude 4.7 earthquake 132 km SW of Merizo Village, Guam at 22:57 UTC on September 12, 2021. The event was offshore. See the M4.7 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-09-12 2021-09-12 22:43:50 UTC | 4.0mb | Fiji region -18.287°, -177.649° | 460.5 km | - | - | - | ✓ Reviewed | USGS → |
On September 12, 2021, worldwide seismic activity registered a magnitude 4.0 earthquake in the Fiji region at 22:43 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. | ||||||||
2021-09-12 2021-09-12 22:17:39 UTC | 2.0ml | 48 km SSE of Nelchina, Alaska 61.599°, -146.358° | 25.1 km | - | - | - | ✓ Reviewed | USGS → |
This magnitude 2.0 event was detected 48 km SSE of Nelchina, Alaska on September 12, 2021, with origin time 22:17 UTC. See the M2.0 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-09-12 2021-09-12 22:08:28 UTC | 2.2ml | 44 km WSW of Cantwell, Alaska 63.225°, -149.765° | 98.3 km | - | - | - | ✓ Reviewed | USGS → |
Reports of a magnitude 2.2 earthquake 44 km WSW of Cantwell, Alaska came in on September 12, 2021 at 22:08 UTC. See the M2.2 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-09-12 2021-09-12 22:04:50 UTC | 2.5ml | 3 km SE of Nescatunga, Oklahoma 36.734°, -98.125° | 6.0 km | 2 | - | - | ✓ Reviewed | USGS → |
A magnitude 2.5 earthquake was recorded 3 km SE of Nescatunga, Oklahoma on September 12, 2021 at 22:04 UTC. The event was offshore. See the M2.5 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-09-12 2021-09-12 21:57:41 UTC | 2.7ml | 19 km ENE of Hartville, Wyoming 42.408°, -104.510° | 0.0 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 2.7 earthquake was recorded 19 km ENE of Hartville, Wyoming on September 12, 2021 at 21:57 UTC. This very shallow event was close enough to the surface that even modest magnitudes can produce significant local shaking. See the M2.7 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-09-12 2021-09-12 21:31:27 UTC | 2.3ml | 16km W of Searles Valley, CA 35.772°, -117.585° | 6.3 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 2.3 earthquake was recorded 16km W of Searles Valley, CA on September 12, 2021 at 21:31 UTC. The event was offshore. See the M2.3 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-09-12 2021-09-12 21:31:08 UTC | 4.2mb | 19 km SSE of Tateyama, Japan 34.819°, 139.950° | 57.3 km | - | - | - | ✓ Reviewed | USGS → |
This magnitude 4.2 event was detected 19 km SSE of Tateyama, Japan on September 12, 2021, with origin time 21:31 UTC. See the M4.2 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-09-12 2021-09-12 21:15:42 UTC | 2.3ml | 54 km NW of Toyah, Texas 31.636°, -104.227° | 6.8 km | - | - | - | ✓ Reviewed | USGS → |
Seismographs logged a magnitude 2.3 earthquake 54 km NW of Toyah, Texas with origin time 21:15 UTC on September 12, 2021. This event falls inside the aftershock decay of a nearby magnitude 3.8 earthquake that occurred about 8 hours earlier. The event was offshore. See the M2.3 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-09-12 2021-09-12 21:04:31 UTC | 4.4mb | 58 km NNE of Finschhafen, Papua New Guinea -6.101°, 148.107° | 70.3 km | - | - | - | ✓ Reviewed | USGS → |
On September 12, 2021 at 21:04 UTC, a magnitude 4.4 earthquake struck 58 km NNE of Finschhafen, Papua New Guinea. See the M4.4 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-09-12 2021-09-12 21:04:14 UTC | 2.6ml | 53 km NW of Toyah, Texas 31.622°, -104.224° | 7.0 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 2.6 seismic event took place 53 km NW of Toyah, Texas on September 12, 2021 at 21:04 UTC. Coming 8 hours after a magnitude 3.8 earthquake in the immediate vicinity, it is most likely an aftershock of that larger rupture. The event was offshore. See the M2.6 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-09-12 2021-09-12 21:02:22 UTC | 2.2ml | 7 km ENE of P?hala, Hawaii 19.225°, -155.406° | 31.4 km | - | - | - | Auto | USGS → |
This magnitude 2.2 event was detected 7 km ENE of P?hala, Hawaii on September 12, 2021, with origin time 21:02 UTC. It arrived roughly 9 hours after a larger magnitude 3.8 mainshock in the same 20 km area, placing it within the typical aftershock window. See the M2.2 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-09-12 2021-09-12 20:49:37 UTC | 2.1md | 0km S of Palo Cedro, CA 40.560°, -122.239° | 14.6 km | 1 | - | - | ✓ Reviewed | USGS → |
September 12, 2021 brought a magnitude 2.1 earthquake 0km S of Palo Cedro, CA, logged at 20:49 UTC. The event was offshore. See the M2.1 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-09-12 2021-09-12 20:47:15 UTC | 2.7ml | 133 km W of Adak, Alaska 51.920°, -178.573° | 140.8 km | - | - | - | ✓ Reviewed | USGS → |
Seismographs logged a magnitude 2.7 earthquake 133 km W of Adak, Alaska with origin time 20:47 UTC on September 12, 2021. The event was offshore. See the M2.7 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-09-12 2021-09-12 20:28:09 UTC | 4.1mb | South Sandwich Islands region -55.752°, -29.011° | 49.5 km | - | - | - | ✓ Reviewed | USGS → |
On September 12, 2021 at 20:28 UTC, a magnitude 4.1 earthquake struck in the South Sandwich Islands region. See the M4.1 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-09-12 2021-09-12 20:17:56 UTC | 4.6mb | South Sandwich Islands region -61.181°, -27.244° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
On September 12, 2021 at 20:17 UTC, a magnitude 4.6 earthquake struck in the South Sandwich Islands region. See the M4.6 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-09-12 2021-09-12 20:17:46 UTC | 2.3md | 3 km ENE of P?hala, Hawaii 19.219°, -155.453° | 35.3 km | - | - | - | Auto | USGS → |
A magnitude 2.3 earthquake was recorded 3 km ENE of P?hala, Hawaii on September 12, 2021 at 20:17 UTC. This event falls inside the aftershock decay of a nearby magnitude 3.8 earthquake that occurred about 9 hours earlier. See the M2.3 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-09-12 2021-09-12 19:21:42 UTC | 4.6mb | West Chile Rise -38.179°, -92.555° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 4.6 earthquake was recorded near West Chile Rise on September 12, 2021 at 19:21 UTC. See the M4.6 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-09-12 2021-09-12 19:19:00 UTC | 2.1ml | 6 km ENE of P?hala, Hawaii 19.216°, -155.415° | 34.3 km | - | - | - | Auto | USGS → |
On September 12, 2021, worldwide seismic activity registered a magnitude 2.1 earthquake 6 km ENE of P?hala, Hawaii at 19:19 UTC. Coming 8 hours after a magnitude 3.8 earthquake in the immediate vicinity, it is most likely an aftershock of that larger rupture. See the M2.1 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-09-12 2021-09-12 19:04:39 UTC | 4.3mb | 158 km S of Tiksi, Russia 70.300°, 129.705° | 18.0 km | - | - | - | ✓ Reviewed | USGS → |
September 12, 2021 brought a magnitude 4.3 earthquake 158 km S of Tiksi, Russia, logged at 19:04 UTC. The event was offshore. See the M4.3 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-09-12 2021-09-12 18:38:18 UTC | 2.0md | 10 km S of P?hala, Hawaii 19.111°, -155.491° | 33.5 km | - | - | - | Auto | USGS → |
At 18:38 UTC on September 12, 2021, a magnitude 2.0 tremor occurred 10 km S of P?hala, Hawaii. This event falls inside the aftershock decay of a nearby magnitude 3.8 earthquake that occurred about 7 hours earlier. The event was offshore. See the M2.0 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-09-12 2021-09-12 18:06:12 UTC | 2.3ml | 5 km SSW of Thatcher, Utah 41.654°, -112.323° | 6.2 km | - | - | - | ✓ Reviewed | USGS → |
On September 12, 2021 at 18:06 UTC, a magnitude 2.3 earthquake struck 5 km SSW of Thatcher, Utah. See the M2.3 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-09-12 2021-09-12 18:05:57 UTC | 3.2ml | 12 km NW of Stanley, Idaho 44.288°, -115.054° | 10.0 km | 4 | - | - | ✓ Reviewed | USGS → |
A magnitude 3.2 earthquake was recorded 12 km NW of Stanley, Idaho on September 12, 2021 at 18:05 UTC. The event was offshore. See the M3.2 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-09-12 2021-09-12 17:03:09 UTC | 4.7mb | 160 km S of False Pass, Alaska 53.413°, -163.564° | 10.0 km | - | I | - | ✓ Reviewed | USGS → |
This magnitude 4.7 event was detected 160 km S of False Pass, Alaska on September 12, 2021, with origin time 17:03 UTC. The event was offshore. See the M4.7 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-09-12 2021-09-12 16:48:25 UTC | 3.1md | 9 km S of Lares, Puerto Rico 18.212°, -66.861° | 29.0 km | 1 | - | - | ✓ Reviewed | USGS → |
Seismographs logged a magnitude 3.1 earthquake 9 km S of Lares, Puerto Rico with origin time 16:48 UTC on September 12, 2021. The event was offshore. See the M3.1 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 12, 2021. Data includes all events of magnitude 1.0 or greater. Past earthquake data is considered final after review by USGS seismologists.