Earthquakes on September 27, 2020
287
EARTHQUAKES on September 27, 2020
24-hour UTC period · USGS data
17 km deep
Normal activitycompared to daily average (~250/day)
Magnitude Breakdown
M5.0+
4
M4.0–4.9
29
M3.0–3.9
19
M2.0–2.9
61
M1.0–1.9
174
Activity Summary
287
Total earthquakes
~250
Daily average
Normal
Activity level
4
M5.0+ events
Geographic Breakdown
By US State
Top Countries (International)
Significant Earthquakes (M4.5+)
5.5
129 km SSW of Nikolski, Alaska
04:12 UTC · 17.0 km deep
5.5
Pacific-Antarctic Ridge
00:35 UTC · 10.0 km deep
5.3
6 km E of Masagua, Guatemala
09:40 UTC · 109.8 km deep
Felt by 45
5.0
52 km E of Leh, India
17:27 UTC · 10.0 km deep
Felt by 11
4.9
33 km NE of Shinshiro, Japan
04:13 UTC · 45.1 km deep
Felt by 23
4.8
117 km WNW of Höfn, Iceland
00:06 UTC · 7.1 km deep
4.7
62 km SW of Ashk?sham, Afghanistan
19:54 UTC · 109.9 km deep
Felt by 1
4.7
30 km SSE of Karyes, Greece
12:58 UTC · 10.0 km deep
Earthquake Map — September 27, 2020
All Earthquakes — September 27, 2020
Showing 30 of 113 (filtered from 287)
(Filtered to M2.0+. Change the magnitude filter to see smaller events.)
| Time ↓ | Mag ↕ | Location ↕ | Depth ↕ | Felt ↕ | MMI | Alert | Status | Details |
|---|---|---|---|---|---|---|---|---|
2020-09-27 2020-09-27 23:23:36 UTC | 4.3mb | 49 km ESE of Bushehr, Iran 28.822°, 51.320° | 10.0 km | 2 | - | - | ✓ Reviewed | USGS → |
On September 27, 2020, worldwide seismic activity registered a magnitude 4.3 earthquake 49 km ESE of Bushehr, Iran at 23:23 UTC. See the M4.3 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2020-09-27 2020-09-27 23:09:50 UTC | 2.1ml | 62 km ESE of Sand Point, Alaska 55.156°, -159.568° | 25.9 km | - | - | - | ✓ Reviewed | USGS → |
The USGS recorded this magnitude 2.1 earthquake 62 km ESE of Sand Point, Alaska at 23:09 UTC on September 27, 2020. See the M2.1 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2020-09-27 2020-09-27 23:05:16 UTC | 2.8md | 4 km SSW of La Parguera, Puerto Rico 17.937°, -67.065° | 12.0 km | - | - | - | ✓ Reviewed | USGS → |
On September 27, 2020 at 23:05 UTC, a magnitude 2.8 earthquake struck 4 km SSW of La Parguera, Puerto Rico. It arrived roughly 19 hours after a larger magnitude 4.1 mainshock in the same 20 km area, placing it within the typical aftershock window. See the M2.8 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2020-09-27 2020-09-27 22:57:05 UTC | 2.8ml | 40 km SSW of Atka, Alaska 51.867°, -174.441° | 76.2 km | - | - | - | ✓ Reviewed | USGS → |
Reports of a magnitude 2.8 earthquake 40 km SSW of Atka, Alaska came in on September 27, 2020 at 22:57 UTC. See the M2.8 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2020-09-27 2020-09-27 22:54:16 UTC | 2.0ml | 46 km SE of Old Harbor, Alaska 56.862°, -152.873° | 3.0 km | - | - | - | ✓ Reviewed | USGS → |
September 27, 2020 brought a magnitude 2.0 earthquake 46 km SE of Old Harbor, Alaska, logged at 22:54 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. | ||||||||
2020-09-27 2020-09-27 22:54:06 UTC | 3.4mw | 10km NE of Milpitas, CA 37.492°, -121.825° | 5.3 km | 1,065 | - | - | ✓ Reviewed | USGS → |
Reports of a magnitude 3.4 earthquake 10km NE of Milpitas, CA came in on September 27, 2020 at 22:54 UTC. The event was offshore. See the M3.4 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2020-09-27 2020-09-27 22:28:22 UTC | 3.0ml | 284 km ESE of Attu Station, Alaska 51.604°, 176.821° | 35.0 km | - | - | - | ✓ Reviewed | USGS → |
September 27, 2020 brought a magnitude 3.0 earthquake 284 km ESE of Attu Station, Alaska, logged at 22:28 UTC. See the M3.0 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2020-09-27 2020-09-27 21:38:29 UTC | 2.6md | 8 km SE of Maria Antonia, Puerto Rico 17.916°, -66.842° | 12.0 km | - | - | - | ✓ Reviewed | USGS → |
This magnitude 2.6 event was detected 8 km SE of Maria Antonia, Puerto Rico on September 27, 2020, with origin time 21:38 UTC. It arrived roughly 13 hours after a larger magnitude 2.9 mainshock in the same 20 km area, placing it within the typical aftershock window. The event was offshore. See the M2.6 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2020-09-27 2020-09-27 21:30:42 UTC | 4.3mb | 132 km E of Union, Philippines 9.727°, 127.314° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
At 21:30 UTC on September 27, 2020, a magnitude 4.3 tremor occurred 132 km E of Union, Philippines. The event was offshore. See the M4.3 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2020-09-27 2020-09-27 21:23:05 UTC | 2.1ml | Island of Hawaii, Hawaii 19.165°, -155.473° | 33.8 km | - | - | - | Auto | USGS → |
This magnitude 2.1 event was detected near Island of Hawaii, Hawaii on September 27, 2020, with origin time 21:23 UTC. It arrived roughly 12 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. | ||||||||
2020-09-27 2020-09-27 20:29:54 UTC | 3.0ml | 12 km N of Meadow Lakes, Alaska 61.732°, -149.642° | 40.0 km | 2 | II | - | ✓ Reviewed | USGS → |
On September 27, 2020 at 20:29 UTC, a magnitude 3.0 earthquake struck 12 km N of Meadow Lakes, Alaska. The event was offshore. See the M3.0 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2020-09-27 2020-09-27 20:29:31 UTC | 2.9ml | 204 km WSW of Yakutat, Alaska 58.764°, -142.963° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
At 20:29 UTC on September 27, 2020, a magnitude 2.9 tremor occurred 204 km WSW of Yakutat, Alaska. See the M2.9 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2020-09-27 2020-09-27 20:13:53 UTC | 2.3ml | Southern Alaska 59.635°, -152.905° | 85.2 km | - | - | - | ✓ Reviewed | USGS → |
September 27, 2020 brought a magnitude 2.3 earthquake near Southern Alaska, logged at 20:13 UTC. See the M2.3 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2020-09-27 2020-09-27 19:54:50 UTC | 4.7mb | 62 km SW of Ashk?sham, Afghanistan 36.264°, 71.071° | 109.9 km | 1 | - | - | ✓ Reviewed | USGS → |
This magnitude 4.7 event was detected 62 km SW of Ashk?sham, Afghanistan on September 27, 2020, with origin time 19:54 UTC. The event was offshore. See the M4.7 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2020-09-27 2020-09-27 19:06:08 UTC | 2.9ml | 71 km SE of Perryville, Alaska 55.542°, -158.214° | 25.9 km | - | - | - | ✓ Reviewed | USGS → |
The USGS recorded this magnitude 2.9 earthquake 71 km SE of Perryville, Alaska at 19:06 UTC on September 27, 2020. The event was offshore. See the M2.9 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2020-09-27 2020-09-27 19:02:03 UTC | 2.9md | 3 km SSW of La Parguera, Puerto Rico 17.946°, -67.063° | 11.0 km | - | - | - | ✓ Reviewed | USGS → |
On September 27, 2020, worldwide seismic activity registered a magnitude 2.9 earthquake 3 km SSW of La Parguera, Puerto Rico at 19:02 UTC. Coming 15 hours after a magnitude 4.1 earthquake in the immediate vicinity, it is most likely an aftershock of that larger rupture. See the M2.9 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2020-09-27 2020-09-27 18:52:50 UTC | 2.1md | 10 km ENE of P?hala, Hawaii 19.234°, -155.382° | 32.6 km | 1 | - | - | Auto | USGS → |
At 18:52 UTC on September 27, 2020, a magnitude 2.1 tremor occurred 10 km ENE of P?hala, Hawaii. This event falls inside the aftershock decay of a nearby magnitude 2.3 earthquake that occurred about 10 hours earlier. See the M2.1 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2020-09-27 2020-09-27 18:50:28 UTC | 2.0md | 4 km S of P?hala, Hawaii 19.166°, -155.472° | 34.1 km | - | - | - | Auto | USGS → |
A magnitude 2.0 seismic event took place 4 km S of P?hala, Hawaii on September 27, 2020 at 18:50 UTC. It arrived roughly 10 hours after a larger magnitude 2.3 mainshock in the same 20 km area, placing it within the typical aftershock window. The event was offshore. See the M2.0 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2020-09-27 2020-09-27 18:38:38 UTC | 4.5mb | south of the Fiji Islands -22.229°, -179.473° | 574.8 km | - | - | - | ✓ Reviewed | USGS → |
At 18:38 UTC on September 27, 2020, a magnitude 4.5 tremor occurred south of the Fiji Islands. This deep-focus earthquake originated far below the brittle crust, deep inside the mantle. See the M4.5 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2020-09-27 2020-09-27 18:31:16 UTC | 2.6md | 8 km SE of Maria Antonia, Puerto Rico 17.915°, -66.844° | 12.0 km | - | - | - | ✓ Reviewed | USGS → |
Reports of a magnitude 2.6 earthquake 8 km SE of Maria Antonia, Puerto Rico came in on September 27, 2020 at 18:31 UTC. This event falls inside the aftershock decay of a nearby magnitude 2.9 earthquake that occurred about 10 hours earlier. The event was offshore. See the M2.6 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2020-09-27 2020-09-27 18:28:31 UTC | 2.1ml | 229 km S of Fort McPherson, Canada 65.425°, -133.852° | 10.3 km | - | - | - | ✓ Reviewed | USGS → |
Reports of a magnitude 2.1 earthquake 229 km S of Fort McPherson, Canada came in on September 27, 2020 at 18:28 UTC. The event was offshore. See the M2.1 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2020-09-27 2020-09-27 18:21:34 UTC | 4.4mb | 240 km E of Levuka, Fiji -17.979°, -178.415° | 584.1 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 4.4 seismic event took place 240 km E of Levuka, Fiji on September 27, 2020 at 18:21 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. | ||||||||
2020-09-27 2020-09-27 18:17:54 UTC | 4.6mb | 11 km SSW of Bela, Pakistan 26.143°, 66.252° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 4.6 earthquake was recorded 11 km SSW of Bela, Pakistan on September 27, 2020 at 18:17 UTC. See the M4.6 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2020-09-27 2020-09-27 17:27:42 UTC | 5.0mww | 52 km E of Leh, India 34.145°, 78.152° | 10.0 km | 11 | - | - | ✓ Reviewed | USGS → |
On September 27, 2020, worldwide seismic activity registered a magnitude 5.0 earthquake 52 km E of Leh, India at 17:27 UTC. The event was offshore. See the M5.0 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2020-09-27 2020-09-27 17:25:19 UTC | 3.2ml | 130 km W of Port Orford, Oregon 42.861°, -126.080° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
On September 27, 2020, worldwide seismic activity registered a magnitude 3.2 earthquake 130 km W of Port Orford, Oregon at 17:25 UTC. The event was offshore. See the M3.2 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2020-09-27 2020-09-27 17:08:27 UTC | 2.1ml | 18 km WNW of Stanley, Idaho 44.299°, -115.144° | 5.9 km | - | - | - | ✓ Reviewed | USGS → |
On September 27, 2020, worldwide seismic activity registered a magnitude 2.1 earthquake 18 km WNW of Stanley, Idaho at 17:08 UTC. See the M2.1 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2020-09-27 2020-09-27 17:04:31 UTC | 2.2ml | 3 km E of P?hala, Hawaii 19.200°, -155.448° | 34.0 km | - | - | - | Auto | USGS → |
Reports of a magnitude 2.2 earthquake 3 km E of P?hala, Hawaii came in on September 27, 2020 at 17:04 UTC. It arrived roughly 8 hours after a larger magnitude 2.3 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. | ||||||||
2020-09-27 2020-09-27 16:42:28 UTC | 2.1ml | 31 km SE of Mina, Nevada 38.172°, -117.875° | 4.4 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 2.1 seismic event took place 31 km SE of Mina, Nevada on September 27, 2020 at 16:42 UTC. In the 72 hours after this event, the USGS recorded 5 smaller earthquakes within 20 km, consistent with an ongoing aftershock sequence rooted here. See the M2.1 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2020-09-27 2020-09-27 16:10:48 UTC | 4.2mb | 277 km SSE of Amahai, Indonesia -5.658°, 129.887° | 205.1 km | - | - | - | ✓ Reviewed | USGS → |
Reports of a magnitude 4.2 earthquake 277 km SSE of Amahai, Indonesia came in on September 27, 2020 at 16:10 UTC. See the M4.2 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2020-09-27 2020-09-27 16:05:09 UTC | 4.5mb | 29 km SSE of Karyes, Greece 40.017°, 24.395° | 12.3 km | - | - | - | ✓ Reviewed | USGS → |
The USGS recorded this magnitude 4.5 earthquake 29 km SSE of Karyes, Greece at 16:05 UTC on September 27, 2020. It arrived roughly 3 hours after a larger magnitude 4.7 mainshock in the same 20 km area, placing it within the typical aftershock window. 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 27, 2020. Data includes all events of magnitude 1.0 or greater. Past earthquake data is considered final after review by USGS seismologists.