Earthquakes on September 1, 2020
300
EARTHQUAKES on September 1, 2020
24-hour UTC period · USGS data
LARGEST: M6.8 — 86 km NW of Vallenar, Chile
21 km deep · 204 people felt it
Normal activitycompared to daily average (~250/day)
Magnitude Breakdown
M5.0+
12
M4.0–4.9
52
M3.0–3.9
13
M2.0–2.9
58
M1.0–1.9
165
Activity Summary
300
Total earthquakes
~250
Daily average
Normal
Activity level
12
M5.0+ events
Significant Earthquakes (M4.5+)
6.8
86 km NW of Vallenar, Chile
04:09 UTC · 21.0 km deep
Felt by 204
6.5
94 km NW of Vallenar, Chile
21:09 UTC · 16.0 km deep
Felt by 44
6.3
78 km NW of Vallenar, Chile
04:30 UTC · 16.2 km deep
Felt by 5
5.8
88 km NW of Vallenar, Chile
07:01 UTC · 18.1 km deep
5.7
99 km NW of Vallenar, Chile
10:31 UTC · 22.0 km deep
5.6
69 km SW of Palana, Russia
00:51 UTC · 10.0 km deep
5.4
83 km NW of Vallenar, Chile
05:29 UTC · 19.2 km deep
5.3
Pacific-Antarctic Ridge
23:17 UTC · 10.0 km deep
Earthquake Map — September 1, 2020
All Earthquakes — September 1, 2020
Showing 30 of 135 (filtered from 300)
(Filtered to M2.0+. Change the magnitude filter to see smaller events.)
| Time ↓ | Mag ↕ | Location ↕ | Depth ↕ | Felt ↕ | MMI | Alert | Status | Details |
|---|---|---|---|---|---|---|---|---|
2020-09-01 2020-09-01 23:59:24 UTC | 2.3ml | 67 km W of Happy Valley, Alaska 60.032°, -152.926° | 101.5 km | - | - | - | ✓ Reviewed | USGS → |
On September 1, 2020, worldwide seismic activity registered a magnitude 2.3 earthquake 67 km W of Happy Valley, Alaska at 23:59 UTC. The event was offshore. See the M2.3 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2020-09-01 2020-09-01 23:49:54 UTC | 2.5ml | 20 km SW of Cantwell, Alaska 63.273°, -149.265° | 85.0 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 2.5 earthquake was recorded 20 km SW of Cantwell, Alaska on September 1, 2020 at 23:49 UTC. The event was offshore. See the M2.5 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2020-09-01 2020-09-01 23:46:28 UTC | 2.5md | 5 km SE of Maria Antonia, Puerto Rico 17.948°, -66.847° | 12.0 km | - | - | - | ✓ Reviewed | USGS → |
At 23:46 UTC on September 1, 2020, a magnitude 2.5 tremor occurred 5 km SE of Maria Antonia, Puerto Rico. This event falls inside the aftershock decay of a nearby magnitude 2.9 earthquake that occurred about 13 hours earlier. The event was offshore. See the M2.5 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2020-09-01 2020-09-01 23:43:57 UTC | 4.5mb | 113 km NW of Haveluloto, Tonga -20.492°, -176.046° | 197.0 km | - | - | - | ✓ Reviewed | USGS → |
Reports of a magnitude 4.5 earthquake 113 km NW of Haveluloto, Tonga came in on September 1, 2020 at 23:43 UTC. The event was offshore. See the M4.5 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2020-09-01 2020-09-01 23:32:06 UTC | 4.4mb | 101 km NW of Vallenar, Chile -27.945°, -71.513° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
At 23:32 UTC on September 1, 2020, a magnitude 4.4 tremor occurred 101 km NW of Vallenar, Chile. This event falls inside the aftershock decay of a nearby magnitude 6.5 earthquake that occurred about 2 hours earlier. The event was offshore. See the M4.4 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2020-09-01 2020-09-01 23:17:11 UTC | 5.3mww | Pacific-Antarctic Ridge -56.280°, -143.940° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
Reports of a magnitude 5.3 earthquake near Pacific-Antarctic Ridge came in on September 1, 2020 at 23:17 UTC. See the M5.3 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2020-09-01 2020-09-01 23:00:00 UTC | 3.1ml | 162 km SSE of Atka, Alaska 50.786°, -173.579° | 21.3 km | - | - | - | ✓ Reviewed | USGS → |
This magnitude 3.1 event was detected 162 km SSE of Atka, Alaska on September 1, 2020, with origin time 23:00 UTC. See the M3.1 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2020-09-01 2020-09-01 22:51:28 UTC | 4.6mb | 116 km E of ‘Ohonua, Tonga -21.216°, -173.839° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
Seismographs logged a magnitude 4.6 earthquake 116 km E of ‘Ohonua, Tonga with origin time 22:51 UTC on September 1, 2020. The event was offshore. See the M4.6 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2020-09-01 2020-09-01 22:24:38 UTC | 2.0ml | 72 km ESE of Sand Point, Alaska 55.200°, -159.380° | 40.1 km | - | - | - | ✓ Reviewed | USGS → |
This magnitude 2.0 event was detected 72 km ESE of Sand Point, Alaska on September 1, 2020, with origin time 22:24 UTC. 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. See the M2.0 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2020-09-01 2020-09-01 22:04:41 UTC | 2.7ml | 93 km S of Adak, Alaska 51.049°, -176.369° | 22.1 km | - | - | - | ✓ Reviewed | USGS → |
This magnitude 2.7 event was detected 93 km S of Adak, Alaska on September 1, 2020, with origin time 22:04 UTC. The event was offshore. See the M2.7 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2020-09-01 2020-09-01 21:57:22 UTC | 4.6mb | 75 km WSW of Neiafu, Tonga -18.909°, -174.649° | 93.8 km | - | - | - | ✓ Reviewed | USGS → |
On September 1, 2020, worldwide seismic activity registered a magnitude 4.6 earthquake 75 km WSW of Neiafu, Tonga at 21:57 UTC. See the M4.6 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2020-09-01 2020-09-01 21:47:45 UTC | 2.2ml | 9 km NW of Perry, Oklahoma 36.354°, -97.355° | 7.3 km | 1 | - | - | ✓ Reviewed | USGS → |
On September 1, 2020, worldwide seismic activity registered a magnitude 2.2 earthquake 9 km NW of Perry, Oklahoma at 21:47 UTC. The event was offshore. See the M2.2 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2020-09-01 2020-09-01 21:40:49 UTC | 2.1ml | 4 km SSE of P?hala, Hawaii 19.168°, -155.460° | 33.7 km | - | - | - | Auto | USGS → |
On September 1, 2020 at 21:40 UTC, a magnitude 2.1 earthquake struck 4 km SSE of P?hala, Hawaii. It arrived roughly 15 hours after a larger magnitude 2.3 mainshock in the same 20 km area, placing it within the typical aftershock window. See the M2.1 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2020-09-01 2020-09-01 21:40:31 UTC | 2.0md | 3 km SE of P?hala, Hawaii 19.184°, -155.458° | 35.9 km | - | - | - | Auto | USGS → |
At 21:40 UTC on September 1, 2020, a magnitude 2.0 tremor occurred 3 km SE of P?hala, Hawaii. This event falls inside the aftershock decay of a nearby magnitude 2.3 earthquake that occurred about 15 hours earlier. The event was offshore. See the M2.0 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2020-09-01 2020-09-01 21:30:43 UTC | 2.2ml | 67 km S of Sand Point, Alaska 54.730°, -160.592° | 25.6 km | - | - | - | ✓ Reviewed | USGS → |
On September 1, 2020 at 21:30 UTC, a magnitude 2.2 earthquake struck 67 km S of Sand Point, Alaska. The event was offshore. See the M2.2 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2020-09-01 2020-09-01 21:29:18 UTC | 4.4mb | 100 km NE of Tobelo, Indonesia 2.477°, 128.523° | 177.1 km | - | - | - | ✓ Reviewed | USGS → |
The USGS recorded this magnitude 4.4 earthquake 100 km NE of Tobelo, Indonesia at 21:29 UTC on September 1, 2020. The event was offshore. See the M4.4 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2020-09-01 2020-09-01 21:21:51 UTC | 2.0ml | 82 km ESE of Sand Point, Alaska 55.058°, -159.305° | 14.2 km | - | - | - | ✓ Reviewed | USGS → |
Reports of a magnitude 2.0 earthquake 82 km ESE of Sand Point, Alaska came in on September 1, 2020 at 21:21 UTC. This event falls inside the aftershock decay of a nearby magnitude 2.4 earthquake that occurred about 11 hours earlier. See the M2.0 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2020-09-01 2020-09-01 21:09:17 UTC | 6.5mww | 94 km NW of Vallenar, Chile -27.916°, -71.370° | 16.0 km | 44 | V | green | ✓ Reviewed | USGS → |
A magnitude 6.5 earthquake was recorded 94 km NW of Vallenar, Chile on September 1, 2020 at 21:09 UTC. This event falls inside the aftershock decay of a nearby magnitude 6.8 earthquake that occurred about 17 hours earlier. The USGS PAGER system assigned a green alert level for this event, signalling no significant casualties or damage expected. See the M6.5 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2020-09-01 2020-09-01 21:05:29 UTC | 4.3mb | 119 km NE of Maumere, Indonesia -7.904°, 123.026° | 238.6 km | - | - | - | ✓ Reviewed | USGS → |
This magnitude 4.3 event was detected 119 km NE of Maumere, Indonesia on September 1, 2020, with origin time 21:05 UTC. The event was offshore. See the M4.3 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2020-09-01 2020-09-01 20:54:54 UTC | 4.4mb | Fiji region -18.096°, -177.791° | 579.4 km | - | - | - | ✓ Reviewed | USGS → |
This magnitude 4.4 event was detected in the Fiji region on September 1, 2020, with origin time 20:54 UTC. This is the deepest earthquake in the current dataset — a deep-focus event. See the M4.4 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2020-09-01 2020-09-01 20:43:55 UTC | 2.1ml | 63 km NW of Elfin Cove, Alaska 58.566°, -137.169° | 5.2 km | - | - | - | ✓ Reviewed | USGS → |
Reports of a magnitude 2.1 earthquake 63 km NW of Elfin Cove, Alaska came in on September 1, 2020 at 20:43 UTC. The event was offshore. See the M2.1 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2020-09-01 2020-09-01 20:39:58 UTC | 2.1ml | 4 km NE of Cascade, Idaho 44.539°, -115.999° | 14.4 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 2.1 earthquake was recorded 4 km NE of Cascade, Idaho on September 1, 2020 at 20:39 UTC. This event falls inside the aftershock decay of a nearby magnitude 2.9 earthquake that occurred about 1 hours earlier. The event was offshore. See the M2.1 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2020-09-01 2020-09-01 20:32:31 UTC | 2.9ml | 4 km NE of Cascade, Idaho 44.543°, -116.006° | 10.0 km | 4 | - | - | ✓ Reviewed | USGS → |
A magnitude 2.9 seismic event took place 4 km NE of Cascade, Idaho on September 1, 2020 at 20:32 UTC. The event was offshore. See the M2.9 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2020-09-01 2020-09-01 20:02:10 UTC | 3.2ml | 35 km NW of Stanley, Idaho 44.477°, -115.200° | 13.2 km | 3 | - | - | ✓ Reviewed | USGS → |
At 20:02 UTC on September 1, 2020, a magnitude 3.2 tremor occurred 35 km NW of Stanley, Idaho. The event was offshore. See the M3.2 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2020-09-01 2020-09-01 19:48:17 UTC | 2.1ml | 4 km NE of Cascade, Idaho 44.542°, -115.990° | 14.7 km | - | - | - | ✓ Reviewed | USGS → |
This magnitude 2.1 event was detected 4 km NE of Cascade, Idaho on September 1, 2020, with origin time 19:48 UTC. The event was offshore. See the M2.1 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2020-09-01 2020-09-01 19:01:44 UTC | 2.3ml | 14 km SSE of Riggins, Idaho 45.300°, -116.246° | 6.7 km | - | - | - | ✓ Reviewed | USGS → |
Reports of a magnitude 2.3 earthquake 14 km SSE of Riggins, Idaho came in on September 1, 2020 at 19:01 UTC. See the M2.3 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2020-09-01 2020-09-01 18:59:44 UTC | 3.3ml | 6 km NNW of Wright, Wyoming 43.802°, -105.525° | 0.0 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 3.3 earthquake was recorded 6 km NNW of Wright, Wyoming on September 1, 2020 at 18:59 UTC. This very shallow event was close enough to the surface that even modest magnitudes can produce significant local shaking. See the M3.3 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2020-09-01 2020-09-01 18:40:11 UTC | 2.0ml | 3 km SW of Hines, Oregon 43.545°, -119.118° | -1.4 km | - | - | - | ✓ Reviewed | USGS → |
On September 1, 2020, worldwide seismic activity registered a magnitude 2.0 earthquake 3 km SW of Hines, Oregon at 18:40 UTC. This is the shallowest earthquake in the current dataset — a shallow crustal event. See the M2.0 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2020-09-01 2020-09-01 18:31:44 UTC | 4.2mb | Indian Ocean Triple Junction -27.033°, 67.023° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
At 18:31 UTC on September 1, 2020, a magnitude 4.2 tremor occurred near Indian Ocean Triple Junction. See the M4.2 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2020-09-01 2020-09-01 17:49:57 UTC | 4.5mwr | 9 km ESE of Tsurugi-asahimachi, Japan 36.427°, 136.732° | 8.2 km | 3 | - | - | ✓ Reviewed | USGS → |
A magnitude 4.5 seismic event took place 9 km ESE of Tsurugi-asahimachi, Japan on September 1, 2020 at 17:49 UTC. See the M4.5 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 1, 2020. Data includes all events of magnitude 1.0 or greater. Past earthquake data is considered final after review by USGS seismologists.