Earthquakes on September 5, 2021
437
EARTHQUAKES on September 5, 2021
24-hour UTC period · USGS data
LARGEST: M5.9 — 83 km SSE of ‘Ohonua, Tonga
10 km deep · 3 people felt it
Elevated activitycompared to daily average (~250/day)
Magnitude Breakdown
M5.0+
6
M4.0–4.9
46
M3.0–3.9
20
M2.0–2.9
67
M1.0–1.9
298
Activity Summary
437
Total earthquakes
~250
Daily average
Elevated
Activity level
6
M5.0+ events
Geographic Breakdown
By US State
Top Countries (International)
Significant Earthquakes (M4.5+)
5.9
83 km SSE of ‘Ohonua, Tonga
17:51 UTC · 10.0 km deep
Felt by 3
5.6
South Sandwich Islands region
09:59 UTC · 27.0 km deep
5.5
291 km SSE of Cabo San Lucas, Mexico
08:42 UTC · 10.0 km deep
Felt by 1
5.5
South Sandwich Islands region
05:26 UTC · 19.8 km deep
5.3
south of the Kermadec Islands
05:09 UTC · 231.2 km deep
5.0
South Sandwich Islands region
10:29 UTC · 10.0 km deep
4.9
South Sandwich Islands region
21:00 UTC · 35.0 km deep
4.9
57 km SE of Inarajan Village, Guam
03:08 UTC · 10.0 km deep
Felt by 1
Earthquake Map — September 5, 2021
All Earthquakes — September 5, 2021
Showing 30 of 139 (filtered from 437)
(Filtered to M2.0+. Change the magnitude filter to see smaller events.)
| Time ↓ | Mag ↕ | Location ↕ | Depth ↕ | Felt ↕ | MMI | Alert | Status | Details |
|---|---|---|---|---|---|---|---|---|
2021-09-05 2021-09-05 23:39:53 UTC | 2.3ml | 15km SSW of Olancha, CA 36.152°, -118.062° | 3.5 km | - | - | - | ✓ Reviewed | USGS → |
Reports of a magnitude 2.3 earthquake 15km SSW of Olancha, CA came in on September 5, 2021 at 23:39 UTC. Coming 1 hours after a magnitude 3.3 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 M2.3 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-09-05 2021-09-05 23:39:22 UTC | 3.3ml | 16km SSW of Olancha, CA 36.150°, -118.065° | 2.6 km | 2 | - | - | ✓ Reviewed | USGS → |
A magnitude 3.3 seismic event took place 16km SSW of Olancha, CA on September 5, 2021 at 23:39 UTC. 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 M3.3 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-09-05 2021-09-05 23:22:04 UTC | 2.5md | 8km WSW of Petrolia, CA 40.288°, -124.362° | 29.3 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 2.5 earthquake was recorded 8km WSW of Petrolia, CA on September 5, 2021 at 23:22 UTC. See the M2.5 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-09-05 2021-09-05 23:12:54 UTC | 2.1ml | 6 km E of P?hala, Hawaii 19.212°, -155.419° | 32.8 km | - | - | - | Auto | USGS → |
On September 5, 2021, worldwide seismic activity registered a magnitude 2.1 earthquake 6 km E of P?hala, Hawaii at 23:12 UTC. It arrived roughly 22 hours after a larger magnitude 2.7 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. | ||||||||
2021-09-05 2021-09-05 23:11:55 UTC | 2.2ml | 4 km E of New Harmony, Utah 37.484°, -113.258° | 1.7 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 2.2 seismic event took place 4 km E of New Harmony, Utah on September 5, 2021 at 23:11 UTC. This very shallow event was close enough to the surface that even modest magnitudes can produce significant local shaking. See the M2.2 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-09-05 2021-09-05 23:05:07 UTC | 2.0ml | 34 km W of Petersville, Alaska 62.493°, -151.435° | 94.2 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 2.0 earthquake was recorded 34 km W of Petersville, Alaska on September 5, 2021 at 23:05 UTC. The event was offshore. See the M2.0 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-09-05 2021-09-05 23:00:55 UTC | 4.5mb | 118 km WSW of Ternate, Indonesia 0.354°, 126.412° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
Seismographs logged a magnitude 4.5 earthquake 118 km WSW of Ternate, Indonesia with origin time 23:00 UTC on September 5, 2021. See the M4.5 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-09-05 2021-09-05 22:50:15 UTC | 4.4mb | 111 km SE of Caburan, Philippines 5.353°, 126.472° | 56.3 km | - | - | - | ✓ Reviewed | USGS → |
September 5, 2021 brought a magnitude 4.4 earthquake 111 km SE of Caburan, Philippines, logged at 22:50 UTC. The event was offshore. See the M4.4 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-09-05 2021-09-05 22:37:08 UTC | 4.3mb | 41 km WNW of Saipan, Northern Mariana Islands 15.415°, 145.430° | 232.9 km | - | - | - | ✓ Reviewed | USGS → |
On September 5, 2021, worldwide seismic activity registered a magnitude 4.3 earthquake 41 km WNW of Saipan, Northern Mariana Islands at 22:37 UTC. See the M4.3 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-09-05 2021-09-05 22:30:07 UTC | 2.0md | 12 km ESE of P?hala, Hawaii 19.162°, -155.366° | 28.6 km | - | - | - | Auto | USGS → |
On September 5, 2021 at 22:30 UTC, a magnitude 2.0 earthquake struck 12 km ESE of P?hala, Hawaii. This event falls inside the aftershock decay of a nearby magnitude 2.7 earthquake that occurred about 21 hours earlier. See the M2.0 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-09-05 2021-09-05 22:22:25 UTC | 4.2mb | 38 km SW of Masachapa, Nicaragua 11.537°, -86.761° | 50.0 km | 2 | - | - | ✓ Reviewed | USGS → |
Seismographs logged a magnitude 4.2 earthquake 38 km SW of Masachapa, Nicaragua with origin time 22:22 UTC on September 5, 2021. The event was offshore. See the M4.2 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-09-05 2021-09-05 21:42:11 UTC | 4.5mb | 201 km ESE of Kokopo, Papua New Guinea -5.205°, 153.868° | 60.9 km | - | - | - | ✓ Reviewed | USGS → |
On September 5, 2021, worldwide seismic activity registered a magnitude 4.5 earthquake 201 km ESE of Kokopo, Papua New Guinea at 21:42 UTC. See the M4.5 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-09-05 2021-09-05 21:40:25 UTC | 2.4ml | 114 km NNE of Arctic Village, Alaska 69.110°, -144.737° | 3.2 km | - | - | - | ✓ Reviewed | USGS → |
This magnitude 2.4 event was detected 114 km NNE of Arctic Village, Alaska on September 5, 2021, with origin time 21:40 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. | ||||||||
2021-09-05 2021-09-05 21:38:46 UTC | 2.2ml | 39 km W of Mentone, Texas 31.707°, -104.019° | 7.9 km | - | - | - | ✓ Reviewed | USGS → |
On September 5, 2021 at 21:38 UTC, a magnitude 2.2 earthquake struck 39 km W of Mentone, Texas. Coming 1 hours after a magnitude 2.3 earthquake in the immediate vicinity, it is most likely an aftershock of that larger rupture. The event was offshore. See the M2.2 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-09-05 2021-09-05 21:27:51 UTC | 4.6mb | 44 km SW of Émponas, Greece 35.969°, 27.485° | 10.0 km | 1 | - | - | ✓ Reviewed | USGS → |
This magnitude 4.6 event was detected 44 km SW of Émponas, Greece on September 5, 2021, with origin time 21:27 UTC. The event was offshore. See the M4.6 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-09-05 2021-09-05 21:26:29 UTC | 4.5mb | 66 km E of Hihifo, Tonga -15.869°, -173.181° | 35.0 km | - | - | - | ✓ Reviewed | USGS → |
At 21:26 UTC on September 5, 2021, a magnitude 4.5 tremor occurred 66 km E of Hihifo, Tonga. The event was offshore. See the M4.5 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-09-05 2021-09-05 21:21:49 UTC | 2.2ml | 3 km E of P?hala, Hawaii 19.209°, -155.444° | 33.7 km | - | - | - | Auto | USGS → |
September 5, 2021 brought a magnitude 2.2 earthquake 3 km E of P?hala, Hawaii, logged at 21:21 UTC. This event falls inside the aftershock decay of a nearby magnitude 2.7 earthquake that occurred about 20 hours earlier. The event was offshore. See the M2.2 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-09-05 2021-09-05 21:06:24 UTC | 2.2md | 1km NW of The Geysers, CA 38.785°, -122.768° | 1.7 km | - | - | - | ✓ Reviewed | USGS → |
September 5, 2021 brought a magnitude 2.2 earthquake 1km NW of The Geysers, CA, logged at 21:06 UTC. This very shallow event was close enough to the surface that even modest magnitudes can produce significant local shaking. See the M2.2 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-09-05 2021-09-05 21:00:43 UTC | 4.9mb | South Sandwich Islands region -59.432°, -25.890° | 35.0 km | - | - | - | ✓ Reviewed | USGS → |
This magnitude 4.9 event was detected in the South Sandwich Islands region on September 5, 2021, with origin time 21:00 UTC. See the M4.9 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-09-05 2021-09-05 20:59:21 UTC | 2.1md | 7 km E of P?hala, Hawaii 19.209°, -155.404° | 32.3 km | - | - | - | Auto | USGS → |
Reports of a magnitude 2.1 earthquake 7 km E of P?hala, Hawaii came in on September 5, 2021 at 20:59 UTC. This event falls inside the aftershock decay of a nearby magnitude 2.7 earthquake that occurred about 19 hours earlier. The event was offshore. See the M2.1 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-09-05 2021-09-05 20:56:58 UTC | 4.3mb | South Sandwich Islands region -58.597°, -24.957° | 27.6 km | - | - | - | ✓ Reviewed | USGS → |
At 20:56 UTC on September 5, 2021, a magnitude 4.3 tremor occurred in the South Sandwich Islands region. This event falls inside the aftershock decay of a nearby magnitude 5.6 earthquake that occurred about 11 hours earlier. See the M4.3 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-09-05 2021-09-05 20:50:52 UTC | 2.5md | 7 km SE of Maria Antonia, Puerto Rico 17.923°, -66.850° | 14.0 km | - | - | - | ✓ Reviewed | USGS → |
On September 5, 2021, worldwide seismic activity registered a magnitude 2.5 earthquake 7 km SE of Maria Antonia, Puerto Rico at 20:50 UTC. It arrived roughly 2 hours after a larger magnitude 2.7 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. | ||||||||
2021-09-05 2021-09-05 20:42:33 UTC | 2.1ml | 2 km SE of P?hala, Hawaii 19.192°, -155.461° | 36.4 km | - | - | - | Auto | USGS → |
This magnitude 2.1 event was detected 2 km SE of P?hala, Hawaii on September 5, 2021, with origin time 20:42 UTC. It arrived roughly 19 hours after a larger magnitude 2.7 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. | ||||||||
2021-09-05 2021-09-05 20:41:52 UTC | 4.7mb | Kermadec Islands region -28.771°, -176.750° | 54.5 km | - | - | - | ✓ Reviewed | USGS → |
Seismographs logged a magnitude 4.7 earthquake in the Kermadec Islands region with origin time 20:41 UTC on September 5, 2021. See the M4.7 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-09-05 2021-09-05 20:37:38 UTC | 4.3mb | South Sandwich Islands region -60.255°, -25.126° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
The USGS recorded this magnitude 4.3 earthquake in the South Sandwich Islands region at 20:37 UTC on September 5, 2021. See the M4.3 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-09-05 2021-09-05 20:33:16 UTC | 2.2ml | 54 km S of Whites City, New Mexico 31.680°, -104.404° | 6.2 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 2.2 earthquake was recorded 54 km S of Whites City, New Mexico on September 5, 2021 at 20:33 UTC. It arrived roughly 2 hours after a larger magnitude 2.7 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. | ||||||||
2021-09-05 2021-09-05 20:29:25 UTC | 4.7mb | 161 km NNW of Sola, Vanuatu -12.497°, 167.059° | 220.8 km | - | - | - | ✓ Reviewed | USGS → |
On September 5, 2021, worldwide seismic activity registered a magnitude 4.7 earthquake 161 km NNW of Sola, Vanuatu at 20:29 UTC. See the M4.7 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-09-05 2021-09-05 20:26:14 UTC | 2.3ml | 40 km W of Mentone, Texas 31.710°, -104.023° | 7.7 km | - | - | - | ✓ Reviewed | USGS → |
Seismographs logged a magnitude 2.3 earthquake 40 km W of Mentone, Texas with origin time 20:26 UTC on September 5, 2021. The event was offshore. See the M2.3 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-09-05 2021-09-05 19:04:59 UTC | 3.2ml | 25 km ESE of Wright, Wyoming 43.659°, -105.202° | 0.0 km | - | - | - | ✓ Reviewed | USGS → |
Seismographs logged a magnitude 3.2 earthquake 25 km ESE of Wright, Wyoming with origin time 19:04 UTC on September 5, 2021. This very shallow event was close enough to the surface that even modest magnitudes can produce significant local shaking. See the M3.2 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-09-05 2021-09-05 18:54:09 UTC | 2.7md | 14 km SSE of Guánica, Puerto Rico 17.849°, -66.857° | 6.0 km | - | - | - | ✓ Reviewed | USGS → |
This magnitude 2.7 event was detected 14 km SSE of Guánica, Puerto Rico on September 5, 2021, with origin time 18:54 UTC. See the M2.7 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 5, 2021. Data includes all events of magnitude 1.0 or greater. Past earthquake data is considered final after review by USGS seismologists.