Earthquakes on September 4, 2020
329
EARTHQUAKES on September 4, 2020
24-hour UTC period · USGS data
13 km deep · 19 people felt it
Elevated activitycompared to daily average (~250/day)
Magnitude Breakdown
M5.0+
5
M4.0–4.9
37
M3.0–3.9
8
M2.0–2.9
48
M1.0–1.9
231
Activity Summary
329
Total earthquakes
~250
Daily average
Elevated
Activity level
5
M5.0+ events
Significant Earthquakes (M4.5+)
5.6
11 km WSW of Finca Blanco, Panama
17:45 UTC · 13.2 km deep
Felt by 19
5.3
1 km NNW of Manaca Norte, Panama
17:46 UTC · 10.0 km deep
Felt by 5
5.2
south of the Kermadec Islands
10:39 UTC · 10.0 km deep
5.2
Banda Sea
05:00 UTC · 234.9 km deep
Felt by 1
5.0
southwest of Africa
03:23 UTC · 10.0 km deep
4.9
15 km W of Finca Blanco, Panama
17:48 UTC · 10.0 km deep
4.9
South Sandwich Islands region
11:49 UTC · 10.0 km deep
4.9
South Shetland Islands
09:24 UTC · 10.0 km deep
Earthquake Map — September 4, 2020
All Earthquakes — September 4, 2020
Showing 30 of 98 (filtered from 329)
(Filtered to M2.0+. Change the magnitude filter to see smaller events.)
| Time ↓ | Mag ↕ | Location ↕ | Depth ↕ | Felt ↕ | MMI | Alert | Status | Details |
|---|---|---|---|---|---|---|---|---|
2020-09-04 2020-09-04 23:44:01 UTC | 2.0ml | 100 km E of Circle, Alaska 65.890°, -141.860° | 10.8 km | - | - | - | ✓ Reviewed | USGS → |
On September 4, 2020, worldwide seismic activity registered a magnitude 2.0 earthquake 100 km E of Circle, Alaska at 23:44 UTC. The event was offshore. See the M2.0 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2020-09-04 2020-09-04 23:01:46 UTC | 4.2mb | 171 km SE of Petropavlovsk-Kamchatsky, Russia 51.797°, 160.139° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 4.2 earthquake was recorded 171 km SE of Petropavlovsk-Kamchatsky, Russia on September 4, 2020 at 23:01 UTC. The event was offshore. See the M4.2 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2020-09-04 2020-09-04 22:53:01 UTC | 4.8mb | 130 km WNW of Pangai, Tonga -19.517°, -175.560° | 206.6 km | - | - | - | ✓ Reviewed | USGS → |
September 4, 2020 brought a magnitude 4.8 earthquake 130 km WNW of Pangai, Tonga, logged at 22:53 UTC. See the M4.8 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2020-09-04 2020-09-04 22:52:51 UTC | 2.5md | 1 km NW of Fuig, Puerto Rico 17.998°, -66.928° | 11.0 km | - | - | - | ✓ Reviewed | USGS → |
Reports of a magnitude 2.5 earthquake 1 km NW of Fuig, Puerto Rico came in on September 4, 2020 at 22:52 UTC. This event falls inside the aftershock decay of a nearby magnitude 2.5 earthquake that occurred about 11 hours earlier. The event was offshore. See the M2.5 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2020-09-04 2020-09-04 22:12:00 UTC | 3.1ml | 39 km NW of Karluk, Alaska 57.828°, -154.911° | 65.3 km | 7 | - | - | ✓ Reviewed | USGS → |
Reports of a magnitude 3.1 earthquake 39 km NW of Karluk, Alaska came in on September 4, 2020 at 22:12 UTC. The event was offshore. See the M3.1 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2020-09-04 2020-09-04 22:04:44 UTC | 2.1ml | 23km ESE of Little Lake, CA 35.865°, -117.666° | 3.0 km | - | - | - | ✓ Reviewed | USGS → |
On September 4, 2020 at 22:04 UTC, a magnitude 2.1 earthquake struck 23km ESE of Little Lake, CA. Coming 8 hours after a magnitude 2.5 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 M2.1 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2020-09-04 2020-09-04 21:50:20 UTC | 4.4mb | 105 km SE of Petropavlovsk-Kamchatsky, Russia 52.464°, 159.886° | 35.0 km | - | - | - | ✓ Reviewed | USGS → |
On September 4, 2020, worldwide seismic activity registered a magnitude 4.4 earthquake 105 km SE of Petropavlovsk-Kamchatsky, Russia at 21:50 UTC. The event was offshore. See the M4.4 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2020-09-04 2020-09-04 21:43:28 UTC | 2.0md | 10 km E of P?hala, Hawaii 19.219°, -155.382° | 31.7 km | - | - | - | Auto | USGS → |
Seismographs logged a magnitude 2.0 earthquake 10 km E of P?hala, Hawaii with origin time 21:43 UTC on September 4, 2020. Coming 13 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 M2.0 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2020-09-04 2020-09-04 21:29:14 UTC | 2.1ml | 8 km E of Floriston, California 39.404°, -119.924° | 8.9 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 2.1 earthquake was recorded 8 km E of Floriston, California on September 4, 2020 at 21:29 UTC. The event was offshore. See the M2.1 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2020-09-04 2020-09-04 21:24:40 UTC | 2.1ml | 56 km S of Sand Point, Alaska 54.834°, -160.342° | 22.3 km | - | - | - | ✓ Reviewed | USGS → |
Seismographs logged a magnitude 2.1 earthquake 56 km S of Sand Point, Alaska with origin time 21:24 UTC on September 4, 2020. This event falls inside the aftershock decay of a nearby magnitude 3.0 earthquake that occurred about 13 hours earlier. The event was offshore. See the M2.1 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2020-09-04 2020-09-04 21:14:26 UTC | 4.7mb | 135 km SE of Petropavlovsk-Kamchatsky, Russia 52.213°, 160.111° | 35.0 km | - | - | - | ✓ Reviewed | USGS → |
Seismographs logged a magnitude 4.7 earthquake 135 km SE of Petropavlovsk-Kamchatsky, Russia with origin time 21:14 UTC on September 4, 2020. The event was offshore. See the M4.7 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2020-09-04 2020-09-04 21:14:07 UTC | 2.5ml | 8 km S of Princeton, Canada 49.383°, -120.530° | -0.5 km | - | - | - | ✓ Reviewed | USGS → |
Seismographs logged a magnitude 2.5 earthquake 8 km S of Princeton, Canada with origin time 21:14 UTC on September 4, 2020. 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. | ||||||||
2020-09-04 2020-09-04 21:10:17 UTC | 4.7mb | 147 km SE of Petropavlovsk-Kamchatsky, Russia 52.182°, 160.305° | 35.0 km | - | - | - | ✓ Reviewed | USGS → |
On September 4, 2020, worldwide seismic activity registered a magnitude 4.7 earthquake 147 km SE of Petropavlovsk-Kamchatsky, Russia at 21:10 UTC. The event was offshore. See the M4.7 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2020-09-04 2020-09-04 21:07:54 UTC | 3.4ml | Rat Islands, Aleutian Islands, Alaska 51.775°, 178.469° | 96.6 km | - | - | - | ✓ Reviewed | USGS → |
At 21:07 UTC on September 4, 2020, a magnitude 3.4 tremor occurred near Rat Islands, Aleutian Islands, Alaska. See the M3.4 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2020-09-04 2020-09-04 20:42:11 UTC | 2.7ml | 51 km NW of Toyah, Texas 31.590°, -104.234° | 9.8 km | - | - | - | ✓ Reviewed | USGS → |
The USGS recorded this magnitude 2.7 earthquake 51 km NW of Toyah, Texas at 20:42 UTC on September 4, 2020. The event was offshore. See the M2.7 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2020-09-04 2020-09-04 20:36:37 UTC | 2.0ml | 33 km NW of Stanley, Idaho 44.455°, -115.200° | 5.0 km | - | - | - | ✓ Reviewed | USGS → |
On September 4, 2020 at 20:36 UTC, a magnitude 2.0 earthquake struck 33 km NW of Stanley, Idaho. The event was offshore. See the M2.0 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2020-09-04 2020-09-04 20:26:44 UTC | 2.8ml | 32 km SE of Mina, Nevada 38.157°, -117.878° | 5.6 km | - | - | - | ✓ Reviewed | USGS → |
Seismographs logged a magnitude 2.8 earthquake 32 km SE of Mina, Nevada with origin time 20:26 UTC on September 4, 2020. In the 72 hours after this event, the USGS recorded 10 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. | ||||||||
2020-09-04 2020-09-04 20:20:42 UTC | 2.4ml | 95 km ESE of Chignik, Alaska 56.009°, -156.956° | 9.3 km | - | - | - | ✓ Reviewed | USGS → |
Seismographs logged a magnitude 2.4 earthquake 95 km ESE of Chignik, Alaska with origin time 20:20 UTC on September 4, 2020. See the M2.4 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2020-09-04 2020-09-04 20:05:42 UTC | 3.7md | 14 km N of Isabel Segunda, Puerto Rico 18.284°, -65.458° | 116.0 km | 1 | - | - | ✓ Reviewed | USGS → |
On September 4, 2020, worldwide seismic activity registered a magnitude 3.7 earthquake 14 km N of Isabel Segunda, Puerto Rico at 20:05 UTC. The event was offshore. See the M3.7 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2020-09-04 2020-09-04 19:50:20 UTC | 2.5md | 65km W of Petrolia, CA 40.389°, -125.043° | -0.1 km | 1 | - | - | ✓ Reviewed | USGS → |
On September 4, 2020, worldwide seismic activity registered a magnitude 2.5 earthquake 65km W of Petrolia, CA at 19:50 UTC. 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. | ||||||||
2020-09-04 2020-09-04 19:42:34 UTC | 2.5md | 3 km SW of Tallaboa, Puerto Rico 17.968°, -66.737° | 9.0 km | - | - | - | ✓ Reviewed | USGS → |
At 19:42 UTC on September 4, 2020, a magnitude 2.5 tremor occurred 3 km SW of Tallaboa, Puerto Rico. This event falls inside the aftershock decay of a nearby magnitude 2.5 earthquake that occurred about 7 hours earlier. The event was offshore. See the M2.5 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2020-09-04 2020-09-04 19:36:23 UTC | 4.6mb | 103 km S of Koshima, Japan 29.299°, 130.541° | 20.2 km | - | - | - | ✓ Reviewed | USGS → |
At 19:36 UTC on September 4, 2020, a magnitude 4.6 tremor occurred 103 km S of Koshima, Japan. The event was offshore. See the M4.6 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2020-09-04 2020-09-04 19:12:33 UTC | 2.2ml | 32 km NNE of Ouzinkie, Alaska 58.171°, -152.214° | 28.2 km | - | - | - | ✓ Reviewed | USGS → |
September 4, 2020 brought a magnitude 2.2 earthquake 32 km NNE of Ouzinkie, Alaska, logged at 19:12 UTC. See the M2.2 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2020-09-04 2020-09-04 18:17:41 UTC | 2.5md | 15 km SSE of Guánica, Puerto Rico 17.838°, -66.865° | 11.0 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 2.5 seismic event took place 15 km SSE of Guánica, Puerto Rico on September 4, 2020 at 18:17 UTC. Coming 6 hours after a magnitude 2.5 earthquake in the immediate vicinity, it is most likely an aftershock of that larger rupture. See the M2.5 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2020-09-04 2020-09-04 17:55:00 UTC | 4.5mb | 15 km W of Finca Blanco, Panama 8.367°, -83.012° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
September 4, 2020 brought a magnitude 4.5 earthquake 15 km W of Finca Blanco, Panama, logged at 17:55 UTC. This event falls inside the aftershock decay of a nearby magnitude 5.6 earthquake that occurred about 1 hours earlier. The event was offshore. See the M4.5 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2020-09-04 2020-09-04 17:48:53 UTC | 4.9mb | 15 km W of Finca Blanco, Panama 8.370°, -83.010° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
The USGS recorded this magnitude 4.9 earthquake 15 km W of Finca Blanco, Panama at 17:48 UTC on September 4, 2020. Coming 1 hours after a magnitude 5.6 earthquake in the immediate vicinity, it is most likely an aftershock of that larger rupture. The event was offshore. See the M4.9 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2020-09-04 2020-09-04 17:46:43 UTC | 5.3mb | 1 km NNW of Manaca Norte, Panama 8.354°, -82.814° | 10.0 km | 5 | - | - | ✓ Reviewed | USGS → |
A magnitude 5.3 earthquake was recorded 1 km NNW of Manaca Norte, Panama on September 4, 2020 at 17:46 UTC. This event falls inside the aftershock decay of a nearby magnitude 5.6 earthquake that occurred about 1 hours earlier. See the M5.3 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2020-09-04 2020-09-04 17:45:42 UTC | 2.3ml | 36 km SE of Mina, Nevada 38.183°, -117.780° | 6.8 km | - | - | - | ✓ Reviewed | USGS → |
This magnitude 2.3 event was detected 36 km SE of Mina, Nevada on September 4, 2020, with origin time 17:45 UTC. This event falls inside the aftershock decay of a nearby magnitude 2.4 earthquake that occurred about 6 hours earlier. The event was offshore. See the M2.3 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2020-09-04 2020-09-04 17:45:21 UTC | 5.6mww | 11 km WSW of Finca Blanco, Panama 8.358°, -82.972° | 13.2 km | 19 | VI | green | ✓ Reviewed | USGS → |
On September 4, 2020 at 17:45 UTC, a magnitude 5.6 earthquake struck 11 km WSW of Finca Blanco, Panama. In the 72 hours after this event, the USGS recorded 3 smaller earthquakes within 20 km, consistent with an ongoing aftershock sequence rooted here. The USGS PAGER system assigned a green alert level for this event, signalling no significant casualties or damage expected. See the M5.6 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2020-09-04 2020-09-04 17:00:29 UTC | 2.5md | 6 km WSW of Guánica, Puerto Rico 17.952°, -66.964° | 7.0 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 2.5 earthquake was recorded 6 km WSW of Guánica, Puerto Rico on September 4, 2020 at 17:00 UTC. This event falls inside the aftershock decay of a nearby magnitude 2.5 earthquake that occurred about 5 hours earlier. 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 4, 2020. Data includes all events of magnitude 1.0 or greater. Past earthquake data is considered final after review by USGS seismologists.