Earthquakes on September 30, 2021
277
EARTHQUAKES on September 30, 2021
24-hour UTC period · USGS data
LARGEST: M5.1 — 45 km W of Sola, Vanuatu
170 km deep
Normal activitycompared to daily average (~250/day)
Magnitude Breakdown
M5.0+
1
M4.0–4.9
31
M3.0–3.9
5
M2.0–2.9
69
M1.0–1.9
171
Activity Summary
277
Total earthquakes
~250
Daily average
Normal
Activity level
1
M5.0+ events
Geographic Breakdown
By US State
Top Countries (International)
Significant Earthquakes (M4.5+)
5.1
45 km W of Sola, Vanuatu
12:07 UTC · 170.4 km deep
4.9
40 km NNW of Neiafu, Tonga
15:37 UTC · 79.8 km deep
4.8
32 km SE of Jurm, Afghanistan
13:04 UTC · 213.8 km deep
4.8
Kermadec Islands, New Zealand
07:38 UTC · 21.5 km deep
4.7
52 km N of San Vicente, Philippines
08:47 UTC · 30.1 km deep
Felt by 4
4.7
Pagan region, Northern Mariana Islands
02:08 UTC · 119.8 km deep
4.7
Kermadec Islands, New Zealand
01:00 UTC · 76.4 km deep
4.6
south of the Fiji Islands
15:12 UTC · 536.3 km deep
Earthquake Map — September 30, 2021
All Earthquakes — September 30, 2021
Showing 30 of 106 (filtered from 277)
(Filtered to M2.0+. Change the magnitude filter to see smaller events.)
| Time ↓ | Mag ↕ | Location ↕ | Depth ↕ | Felt ↕ | MMI | Alert | Status | Details |
|---|---|---|---|---|---|---|---|---|
2021-09-30 2021-09-30 23:59:54 UTC | 2.3ml | 56 km N of Karluk, Alaska 58.078°, -154.393° | 1.3 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 2.3 earthquake was recorded 56 km N of Karluk, Alaska on September 30, 2021 at 23:59 UTC. Coming 13 hours after a magnitude 3.5 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. | ||||||||
2021-09-30 2021-09-30 23:59:17 UTC | 2.2ml | 67 km NNW of Karluk, Alaska 58.155°, -154.713° | 13.5 km | - | - | - | Auto | USGS → |
On September 30, 2021, worldwide seismic activity registered a magnitude 2.2 earthquake 67 km NNW of Karluk, Alaska at 23:59 UTC. Coming 13 hours after a magnitude 3.5 earthquake in the immediate vicinity, it is most likely an aftershock of that larger rupture. See the M2.2 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-09-30 2021-09-30 23:42:49 UTC | 2.2ml | 32 km SE of Mina, Nevada 38.149°, -117.898° | 11.5 km | - | - | - | ✓ Reviewed | USGS → |
At 23:42 UTC on September 30, 2021, a magnitude 2.2 tremor occurred 32 km SE of Mina, Nevada. The event was offshore. See the M2.2 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-09-30 2021-09-30 21:32:20 UTC | 2.5md | 20 km SSE of Fern Forest, Hawaii 19.295°, -155.052° | 38.1 km | - | - | - | ✓ Reviewed | USGS → |
Seismographs logged a magnitude 2.5 earthquake 20 km SSE of Fern Forest, Hawaii with origin time 21:32 UTC on September 30, 2021. See the M2.5 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-09-30 2021-09-30 21:27:45 UTC | 4.4mb | 36 km SSW of Campo Pesquero el Colorado, Mexico 25.451°, -109.436° | 10.0 km | 1 | - | - | ✓ Reviewed | USGS → |
On September 30, 2021, worldwide seismic activity registered a magnitude 4.4 earthquake 36 km SSW of Campo Pesquero el Colorado, Mexico at 21:27 UTC. See the M4.4 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-09-30 2021-09-30 20:49:22 UTC | 2.2ml | 11 km E of Comanche, Oklahoma 34.372°, -97.838° | 9.5 km | - | - | - | Auto | USGS → |
A magnitude 2.2 earthquake was recorded 11 km E of Comanche, Oklahoma on September 30, 2021 at 20:49 UTC. The event was offshore. See the M2.2 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-09-30 2021-09-30 20:33:01 UTC | 4.3mb | 41 km WSW of Campo Pesquero el Colorado, Mexico 25.557°, -109.669° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
This magnitude 4.3 event was detected 41 km WSW of Campo Pesquero el Colorado, Mexico on September 30, 2021, with origin time 20:33 UTC. See the M4.3 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-09-30 2021-09-30 20:31:15 UTC | 3.1ml | 18 km NE of P?hala, Hawaii 19.306°, -155.343° | 27.9 km | 1 | - | - | ✓ Reviewed | USGS → |
This magnitude 3.1 event was detected 18 km NE of P?hala, Hawaii on September 30, 2021, with origin time 20:31 UTC. The event was offshore. See the M3.1 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-09-30 2021-09-30 20:26:45 UTC | 4.2mb | Izu Islands, Japan region 29.750°, 142.019° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
September 30, 2021 brought a magnitude 4.2 earthquake in the Izu Islands, Japan region, logged at 20:26 UTC. See the M4.2 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-09-30 2021-09-30 20:19:54 UTC | 4.3mb | 94 km S of Arica, Chile -19.326°, -70.281° | 33.8 km | 2 | - | - | ✓ Reviewed | USGS → |
Reports of a magnitude 4.3 earthquake 94 km S of Arica, Chile came in on September 30, 2021 at 20:19 UTC. The event was offshore. See the M4.3 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-09-30 2021-09-30 19:48:35 UTC | 4.3mb | 146 km SSE of ‘Ohonua, Tonga -22.573°, -174.453° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 4.3 seismic event took place 146 km SSE of ‘Ohonua, Tonga on September 30, 2021 at 19:48 UTC. See the M4.3 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-09-30 2021-09-30 18:54:25 UTC | 4.1mb | 115 km SSW of Singkil, Indonesia 1.287°, 97.501° | 21.4 km | - | - | - | ✓ Reviewed | USGS → |
This magnitude 4.1 event was detected 115 km SSW of Singkil, Indonesia on September 30, 2021, with origin time 18:54 UTC. See the M4.1 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-09-30 2021-09-30 18:17:51 UTC | 2.1ml | 7 km NNE of Big Lake, Alaska 61.578°, -149.896° | 33.4 km | 1 | - | - | Auto | USGS → |
On September 30, 2021, worldwide seismic activity registered a magnitude 2.1 earthquake 7 km NNE of Big Lake, Alaska at 18:17 UTC. See the M2.1 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-09-30 2021-09-30 18:10:39 UTC | 2.2ml | 15km W of Searles Valley, CA 35.747°, -117.566° | 6.9 km | - | - | - | ✓ Reviewed | USGS → |
On September 30, 2021 at 18:10 UTC, a magnitude 2.2 earthquake struck 15km W of Searles Valley, CA. The event was offshore. See the M2.2 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-09-30 2021-09-30 18:05:28 UTC | 4.1mb | 101 km NNE of Calama, Chile -21.655°, -68.447° | 130.0 km | - | - | - | ✓ Reviewed | USGS → |
Reports of a magnitude 4.1 earthquake 101 km NNE of Calama, Chile came in on September 30, 2021 at 18:05 UTC. See the M4.1 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-09-30 2021-09-30 17:50:26 UTC | 2.7md | 2 km SE of P?hala, Hawaii 19.186°, -155.465° | 35.3 km | - | - | - | ✓ Reviewed | USGS → |
At 17:50 UTC on September 30, 2021, a magnitude 2.7 tremor occurred 2 km SE of P?hala, Hawaii. The event was offshore. See the M2.7 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-09-30 2021-09-30 17:22:48 UTC | 2.3ml | 8 km E of P?hala, Hawaii 19.216°, -155.399° | 33.4 km | - | - | - | ✓ Reviewed | USGS → |
This magnitude 2.3 event was detected 8 km E of P?hala, Hawaii on September 30, 2021, with origin time 17:22 UTC. It arrived roughly 15 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 M2.3 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-09-30 2021-09-30 17:13:03 UTC | 4.2mb | 12 km SSW of Khorugh, Tajikistan 37.389°, 71.480° | 101.3 km | - | - | - | ✓ Reviewed | USGS → |
On September 30, 2021 at 17:13 UTC, a magnitude 4.2 earthquake struck 12 km SSW of Khorugh, Tajikistan. See the M4.2 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-09-30 2021-09-30 17:04:03 UTC | 2.2md | 2 km S of P?hala, Hawaii 19.182°, -155.482° | 36.9 km | - | - | - | Auto | USGS → |
September 30, 2021 brought a magnitude 2.2 earthquake 2 km S of P?hala, Hawaii, logged at 17:04 UTC. Coming 15 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 M2.2 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-09-30 2021-09-30 16:13:18 UTC | 3.1md | 15 km SSE of Maria Antonia, Puerto Rico 17.846°, -66.838° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
The USGS recorded this magnitude 3.1 earthquake 15 km SSE of Maria Antonia, Puerto Rico at 16:13 UTC on September 30, 2021. See the M3.1 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-09-30 2021-09-30 15:54:56 UTC | 4.5mb | 157 km N of Calama, Chile -21.056°, -68.675° | 130.7 km | 1 | - | - | ✓ Reviewed | USGS → |
On September 30, 2021 at 15:54 UTC, a magnitude 4.5 earthquake struck 157 km N of Calama, Chile. The event was offshore. See the M4.5 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-09-30 2021-09-30 15:40:52 UTC | 4.2mb | 2 km SW of Haligue, Philippines 13.647°, 121.099° | 144.3 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 4.2 earthquake was recorded 2 km SW of Haligue, Philippines on September 30, 2021 at 15:40 UTC. The event was offshore. See the M4.2 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-09-30 2021-09-30 15:37:55 UTC | 4.9mb | 40 km NNW of Neiafu, Tonga -18.335°, -174.172° | 79.8 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 4.9 earthquake was recorded 40 km NNW of Neiafu, Tonga on September 30, 2021 at 15:37 UTC. See the M4.9 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-09-30 2021-09-30 15:12:28 UTC | 4.6mb | south of the Fiji Islands -23.786°, 179.934° | 536.3 km | - | - | - | ✓ Reviewed | USGS → |
Reports of a magnitude 4.6 earthquake south of the Fiji Islands came in on September 30, 2021 at 15:12 UTC. This is the deepest earthquake in the current dataset — a deep-focus event. See the M4.6 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-09-30 2021-09-30 15:09:24 UTC | 4.2mb | 150 km N of Calama, Chile -21.120°, -68.685° | 136.1 km | - | - | - | ✓ Reviewed | USGS → |
Seismographs logged a magnitude 4.2 earthquake 150 km N of Calama, Chile with origin time 15:09 UTC on September 30, 2021. The event was offshore. See the M4.2 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-09-30 2021-09-30 14:16:51 UTC | 2.2md | 13km SSE of Bodie, CA 38.105°, -118.956° | 6.5 km | - | - | - | ✓ Reviewed | USGS → |
Reports of a magnitude 2.2 earthquake 13km SSE of Bodie, CA came in on September 30, 2021 at 14:16 UTC. See the M2.2 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-09-30 2021-09-30 13:59:46 UTC | 2.8ml | 55 km S of Whites City, New Mexico 31.677°, -104.390° | 7.4 km | - | - | - | ✓ Reviewed | USGS → |
September 30, 2021 brought a magnitude 2.8 earthquake 55 km S of Whites City, New Mexico, logged at 13:59 UTC. The event was offshore. See the M2.8 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-09-30 2021-09-30 13:58:50 UTC | 2.2md | 9 km E of P?hala, Hawaii 19.206°, -155.386° | 32.5 km | - | - | - | Auto | USGS → |
On September 30, 2021 at 13:58 UTC, a magnitude 2.2 earthquake struck 9 km E of P?hala, Hawaii. It arrived roughly 12 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. | ||||||||
2021-09-30 2021-09-30 13:28:16 UTC | 2.0ml | 67 km W of Nikiski, Alaska 60.777°, -152.511° | 140.0 km | - | - | - | Auto | USGS → |
On September 30, 2021, worldwide seismic activity registered a magnitude 2.0 earthquake 67 km W of Nikiski, Alaska at 13:28 UTC. The event was offshore. See the M2.0 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-09-30 2021-09-30 13:10:16 UTC | 2.2ml | 19 km ESE of Challis, Idaho 44.469°, -113.994° | 7.3 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 2.2 seismic event took place 19 km ESE of Challis, Idaho on September 30, 2021 at 13:10 UTC. See the M2.2 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 30, 2021. Data includes all events of magnitude 1.0 or greater. Past earthquake data is considered final after review by USGS seismologists.