Earthquakes on September 3, 2021
351
EARTHQUAKES on September 3, 2021
24-hour UTC period · USGS data
LARGEST: M5.8 — 286 km E of Poronaysk, Russia
585 km deep · 4 people felt it
Elevated activitycompared to daily average (~250/day)
Magnitude Breakdown
M5.0+
6
M4.0–4.9
26
M3.0–3.9
13
M2.0–2.9
86
M1.0–1.9
220
Activity Summary
351
Total earthquakes
~250
Daily average
Elevated
Activity level
6
M5.0+ events
Geographic Breakdown
By US State
Top Countries (International)
Significant Earthquakes (M4.5+)
5.8
286 km E of Poronaysk, Russia
10:14 UTC · 585.0 km deep
Felt by 4
5.6
South Sandwich Islands region
07:49 UTC · 6.5 km deep
5.5
South Sandwich Islands region
00:06 UTC · 34.9 km deep
5.4
southern East Pacific Rise
05:22 UTC · 10.0 km deep
Felt by 1
5.0
44 km SE of Xunchang, China
13:30 UTC · 10.0 km deep
Felt by 4
5.0
58 km SSW of Paracas, Peru
05:06 UTC · 9.2 km deep
Felt by 2
4.8
southern East Pacific Rise
05:40 UTC · 10.0 km deep
Felt by 1
4.8
southern East Pacific Rise
05:34 UTC · 10.0 km deep
Earthquake Map — September 3, 2021
All Earthquakes — September 3, 2021
Showing 30 of 131 (filtered from 351)
(Filtered to M2.0+. Change the magnitude filter to see smaller events.)
| Time ↓ | Mag ↕ | Location ↕ | Depth ↕ | Felt ↕ | MMI | Alert | Status | Details |
|---|---|---|---|---|---|---|---|---|
2021-09-03 2021-09-03 23:58:14 UTC | 2.1ml | 30 km SSE of Mina, Nevada 38.150°, -117.938° | 12.1 km | - | - | - | ✓ Reviewed | USGS → |
September 3, 2021 brought a magnitude 2.1 earthquake 30 km SSE of Mina, Nevada, logged at 23:58 UTC. See the M2.1 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-09-03 2021-09-03 23:56:53 UTC | 3.1ml | 113 km SE of Atka, Alaska 51.540°, -172.933° | 35.0 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 3.1 earthquake was recorded 113 km SE of Atka, Alaska on September 3, 2021 at 23:56 UTC. The event was offshore. See the M3.1 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-09-03 2021-09-03 23:27:29 UTC | 2.4md | 3 km SSW of Tallaboa, Puerto Rico 17.965°, -66.736° | 9.0 km | - | - | - | ✓ Reviewed | USGS → |
At 23:27 UTC on September 3, 2021, a magnitude 2.4 tremor occurred 3 km SSW of Tallaboa, Puerto Rico. See the M2.4 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-09-03 2021-09-03 23:20:23 UTC | 4.5mb | Kermadec Islands, New Zealand -30.224°, -177.394° | 6.5 km | - | - | - | ✓ Reviewed | USGS → |
At 23:20 UTC on September 3, 2021, a magnitude 4.5 tremor occurred near Kermadec Islands, New Zealand. See the M4.5 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-09-03 2021-09-03 22:53:26 UTC | 2.2md | 7 km SW of Volcano, Hawaii 19.392°, -155.278° | 0.8 km | - | - | - | Auto | USGS → |
At 22:53 UTC on September 3, 2021, a magnitude 2.2 tremor occurred 7 km SW of Volcano, Hawaii. 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 M2.2 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-09-03 2021-09-03 22:46:38 UTC | 2.5md | 26km SSW of Smith Valley, NV 38.559°, -119.420° | 0.4 km | - | - | - | ✓ Reviewed | USGS → |
This magnitude 2.5 event was detected 26km SSW of Smith Valley, NV on September 3, 2021, with origin time 22:46 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 M2.5 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-09-03 2021-09-03 22:32:19 UTC | 4.2mb | south of the Fiji Islands -24.003°, -179.474° | 544.1 km | - | - | - | ✓ Reviewed | USGS → |
Reports of a magnitude 4.2 earthquake south of the Fiji Islands came in on September 3, 2021 at 22:32 UTC. 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. | ||||||||
2021-09-03 2021-09-03 22:18:35 UTC | 2.3md | 7km W of Petrolia, CA 40.317°, -124.371° | 28.4 km | - | - | - | ✓ Reviewed | USGS → |
On September 3, 2021, worldwide seismic activity registered a magnitude 2.3 earthquake 7km W of Petrolia, CA at 22:18 UTC. The event was offshore. See the M2.3 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-09-03 2021-09-03 22:10:57 UTC | 4.3mb | 255 km ENE of Kuril’sk, Russia 46.364°, 150.730° | 102.3 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 4.3 earthquake was recorded 255 km ENE of Kuril’sk, Russia on September 3, 2021 at 22:10 UTC. See the M4.3 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-09-03 2021-09-03 22:10:11 UTC | 2.8ml | 140 km SE of Perryville, Alaska 55.032°, -157.553° | 25.6 km | - | - | - | ✓ Reviewed | USGS → |
Seismographs logged a magnitude 2.8 earthquake 140 km SE of Perryville, Alaska with origin time 22:10 UTC on September 3, 2021. This event falls inside the aftershock decay of a nearby magnitude 3.9 earthquake that occurred about 2 hours earlier. The event was offshore. See the M2.8 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-09-03 2021-09-03 21:55:05 UTC | 2.5ml | 56 km S of Whites City, New Mexico 31.664°, -104.373° | 6.6 km | - | - | - | ✓ Reviewed | USGS → |
September 3, 2021 brought a magnitude 2.5 earthquake 56 km S of Whites City, New Mexico, logged at 21:55 UTC. It arrived roughly 16 hours after a larger magnitude 4.3 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. | ||||||||
2021-09-03 2021-09-03 21:51:13 UTC | 2.5ml | 109 km ESE of Atka, Alaska 51.832°, -172.712° | 33.0 km | - | - | - | ✓ Reviewed | USGS → |
On September 3, 2021 at 21:51 UTC, a magnitude 2.5 earthquake struck 109 km ESE of Atka, Alaska. This event falls inside the aftershock decay of a nearby magnitude 2.7 earthquake that occurred about 1 hours earlier. See the M2.5 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-09-03 2021-09-03 21:44:43 UTC | 2.3md | 2 km SE of P?hala, Hawaii 19.189°, -155.462° | 36.8 km | - | - | - | Auto | USGS → |
On September 3, 2021 at 21:44 UTC, a magnitude 2.3 earthquake struck 2 km SE of P?hala, Hawaii. It arrived roughly 20 hours after a larger magnitude 2.8 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. | ||||||||
2021-09-03 2021-09-03 21:44:09 UTC | 2.7ml | 107 km ESE of Atka, Alaska 51.889°, -172.711° | 35.0 km | - | - | - | ✓ Reviewed | USGS → |
On September 3, 2021 at 21:44 UTC, a magnitude 2.7 earthquake struck 107 km ESE of Atka, Alaska. See the M2.7 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-09-03 2021-09-03 21:33:28 UTC | 2.5ml | 56 km S of Whites City, New Mexico 31.669°, -104.373° | 7.4 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 2.5 earthquake was recorded 56 km S of Whites City, New Mexico on September 3, 2021 at 21:33 UTC. Coming 16 hours after a magnitude 4.3 earthquake in the immediate vicinity, it is most likely an aftershock of that larger rupture. The event was offshore. See the M2.5 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-09-03 2021-09-03 21:23:22 UTC | 4.6mb | 1 km ESE of Boton, Philippines 12.924°, 124.058° | 55.6 km | - | - | - | ✓ Reviewed | USGS → |
On September 3, 2021 at 21:23 UTC, a magnitude 4.6 earthquake struck 1 km ESE of Boton, Philippines. See the M4.6 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-09-03 2021-09-03 20:58:43 UTC | 2.2ml | 77 km N of Yakutat, Alaska 60.246°, -139.744° | 7.1 km | - | - | - | ✓ Reviewed | USGS → |
The USGS recorded this magnitude 2.2 earthquake 77 km N of Yakutat, Alaska at 20:58 UTC on September 3, 2021. The event was offshore. See the M2.2 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-09-03 2021-09-03 20:44:38 UTC | 2.4ml | 138 km SE of Perryville, Alaska 54.971°, -157.712° | 45.0 km | - | - | - | ✓ Reviewed | USGS → |
September 3, 2021 brought a magnitude 2.4 earthquake 138 km SE of Perryville, Alaska, logged at 20:44 UTC. This event falls inside the aftershock decay of a nearby magnitude 3.9 earthquake that occurred about 1 hours earlier. The event was offshore. See the M2.4 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-09-03 2021-09-03 20:38:35 UTC | 3.9ml | 135 km SE of Perryville, Alaska 54.981°, -157.771° | 45.0 km | - | I | - | ✓ Reviewed | USGS → |
Seismographs logged a magnitude 3.9 earthquake 135 km SE of Perryville, Alaska with origin time 20:38 UTC on September 3, 2021. The event was offshore. See the M3.9 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-09-03 2021-09-03 20:09:21 UTC | 2.0md | 14km N of Morgan Hill, CA 37.254°, -121.634° | 4.3 km | 2 | - | - | ✓ Reviewed | USGS → |
This magnitude 2.0 event was detected 14km N of Morgan Hill, CA on September 3, 2021, with origin time 20:09 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. | ||||||||
2021-09-03 2021-09-03 20:07:31 UTC | 2.8ml | 182 km SE of Adak, Alaska 50.549°, -175.099° | 28.6 km | - | - | - | ✓ Reviewed | USGS → |
On September 3, 2021, worldwide seismic activity registered a magnitude 2.8 earthquake 182 km SE of Adak, Alaska at 20:07 UTC. The event was offshore. See the M2.8 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-09-03 2021-09-03 19:26:45 UTC | 2.7ml | 23 km WNW of Stanley, Idaho 44.311°, -115.197° | 15.3 km | 1 | - | - | ✓ Reviewed | USGS → |
A magnitude 2.7 earthquake was recorded 23 km WNW of Stanley, Idaho on September 3, 2021 at 19:26 UTC. This event falls inside the aftershock decay of a nearby magnitude 3.4 earthquake that occurred about 5 hours earlier. See the M2.7 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-09-03 2021-09-03 19:09:30 UTC | 2.0md | 9km N of Oroville, CA 39.595°, -121.570° | -0.2 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 2.0 earthquake was recorded 9km N of Oroville, CA on September 3, 2021 at 19:09 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. | ||||||||
2021-09-03 2021-09-03 18:34:01 UTC | 2.0ml | southern Idaho 44.115°, -115.067° | 3.7 km | - | - | - | ✓ Reviewed | USGS → |
Reports of a magnitude 2.0 earthquake near southern Idaho came in on September 3, 2021 at 18:34 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. | ||||||||
2021-09-03 2021-09-03 18:31:15 UTC | 2.8ml | 69 km NW of Hyder, Alaska 56.373°, -130.777° | 24.6 km | - | - | - | ✓ Reviewed | USGS → |
At 18:31 UTC on September 3, 2021, a magnitude 2.8 tremor occurred 69 km NW of Hyder, Alaska. The event was offshore. See the M2.8 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-09-03 2021-09-03 18:15:32 UTC | 2.0ml | 69 km NW of Hyder, Alaska 56.303°, -130.904° | 7.6 km | - | - | - | ✓ Reviewed | USGS → |
Seismographs logged a magnitude 2.0 earthquake 69 km NW of Hyder, Alaska with origin time 18:15 UTC on September 3, 2021. The event was offshore. See the M2.0 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-09-03 2021-09-03 18:14:57 UTC | 4.5mb | South Sandwich Islands region -58.638°, -25.460° | 26.3 km | - | - | - | ✓ Reviewed | USGS → |
The USGS recorded this magnitude 4.5 earthquake in the South Sandwich Islands region at 18:14 UTC on September 3, 2021. See the M4.5 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-09-03 2021-09-03 17:52:54 UTC | 4.5mb | Kermadec Islands region -28.458°, -177.907° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
This magnitude 4.5 event was detected in the Kermadec Islands region on September 3, 2021, with origin time 17:52 UTC. See the M4.5 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-09-03 2021-09-03 17:46:03 UTC | 2.8md | 30km SE of Markleeville, CA 38.512°, -119.531° | 5.1 km | - | - | - | ✓ Reviewed | USGS → |
September 3, 2021 brought a magnitude 2.8 earthquake 30km SE of Markleeville, CA, logged at 17:46 UTC. In the 72 hours after this event, the USGS recorded 13 smaller earthquakes within 20 km, consistent with an ongoing aftershock sequence rooted here. See the M2.8 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-09-03 2021-09-03 17:37:22 UTC | 2.5ml | 15 km N of Beluga, Alaska 61.276°, -151.118° | 69.9 km | 1 | - | - | ✓ Reviewed | USGS → |
Seismographs logged a magnitude 2.5 earthquake 15 km N of Beluga, Alaska with origin time 17:37 UTC on September 3, 2021. The event was offshore. See the M2.5 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 3, 2021. Data includes all events of magnitude 1.0 or greater. Past earthquake data is considered final after review by USGS seismologists.