Earthquakes on September 20, 2026
272
EARTHQUAKES on September 20, 2026
24-hour UTC period · USGS data
113 km deep · 30 people felt it
Normal activitycompared to daily average (~250/day)
Magnitude Breakdown
M5.0+
11
M4.0–4.9
31
M3.0–3.9
13
M2.0–2.9
73
M1.0–1.9
144
Activity Summary
272
Total earthquakes
~250
Daily average
Normal
Activity level
11
M5.0+ events
Geographic Breakdown
By US State
Top Countries (International)
Significant Earthquakes (M4.5+)
6.4
50 km NNE of Kainantu, Papua New Guinea
09:17 UTC · 113.0 km deep
Felt by 30
5.5
south of Africa
20:54 UTC · 10.0 km deep
5.4
60 km NE of Kainantu, Papua New Guinea
12:45 UTC · 109.1 km deep
Felt by 7
5.3
61 km WNW of Cafayate, Argentina
08:47 UTC · 10.0 km deep
Felt by 3
5.3
120 km ESE of Yigo Village, Guam
03:43 UTC · 10.0 km deep
Felt by 1
5.3
Reykjanes Ridge
00:58 UTC · 10.0 km deep
5.2
104 km W of Hihifo, Tonga
13:00 UTC · 10.0 km deep
5.1
17 km WNW of Naze, Japan
07:28 UTC · 68.9 km deep
Felt by 1
Earthquake Map — September 20, 2026
All Earthquakes — September 20, 2026
Showing 30 of 128 (filtered from 272)
(Filtered to M2.0+. Change the magnitude filter to see smaller events.)
| Time ↓ | Mag ↕ | Location ↕ | Depth ↕ | Felt ↕ | MMI | Alert | Status | Details |
|---|---|---|---|---|---|---|---|---|
2026-09-20 2026-09-20 23:55:25 UTC | 2.2ml | 105 km WSW of Adak, Alaska 51.398°, -177.944° | 30.3 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 2.2 earthquake was recorded 105 km WSW of Adak, Alaska on September 20, 2026 at 23:55 UTC. See the M2.2 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-09-20 2026-09-20 23:45:18 UTC | 2.2md | 3 km SW of Guánica, Puerto Rico 17.949°, -66.931° | 7.6 km | - | - | - | ✓ Reviewed | USGS → |
September 20, 2026 brought a magnitude 2.2 earthquake 3 km SW of Guánica, Puerto Rico, logged at 23:45 UTC. It arrived roughly 3 hours after a larger magnitude 3.0 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. | ||||||||
2026-09-20 2026-09-20 23:43:10 UTC | 3.1ml | 146 km WSW of Nikolski, Alaska 52.479°, -170.896° | 51.3 km | - | - | - | ✓ Reviewed | USGS → |
Seismographs logged a magnitude 3.1 earthquake 146 km WSW of Nikolski, Alaska with origin time 23:43 UTC on September 20, 2026. This event falls inside the aftershock decay of a nearby magnitude 3.8 earthquake that occurred about 19 hours earlier. See the M3.1 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-09-20 2026-09-20 23:38:39 UTC | 2.5md | 3 km WSW of Fuig, Puerto Rico 17.970°, -66.946° | 7.4 km | - | - | - | ✓ Reviewed | USGS → |
At 23:38 UTC on September 20, 2026, a magnitude 2.5 tremor occurred 3 km WSW of Fuig, Puerto Rico. Coming 3 hours after a magnitude 3.0 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. | ||||||||
2026-09-20 2026-09-20 23:36:46 UTC | 4.6mb | east of the South Sandwich Islands -58.854°, -14.819° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 4.6 seismic event took place east of the South Sandwich Islands on September 20, 2026 at 23:36 UTC. See the M4.6 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-09-20 2026-09-20 23:31:39 UTC | 2.1ml | 78 km W of Karluk, Alaska 57.667°, -155.761° | 5.3 km | - | - | - | ✓ Reviewed | USGS → |
On September 20, 2026 at 23:31 UTC, a magnitude 2.1 earthquake struck 78 km W of Karluk, Alaska. The event was offshore. See the M2.1 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-09-20 2026-09-20 23:25:37 UTC | 4.6mww | 26 km SSW of Shikotan, Russia 43.596°, 146.552° | 57.3 km | - | - | - | ✓ Reviewed | USGS → |
September 20, 2026 brought a magnitude 4.6 earthquake 26 km SSW of Shikotan, Russia, logged at 23:25 UTC. See the M4.6 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-09-20 2026-09-20 23:01:56 UTC | 2.2ml | 75 km SE of Adak, Alaska 51.395°, -175.870° | 17.9 km | - | - | - | ✓ Reviewed | USGS → |
Seismographs logged a magnitude 2.2 earthquake 75 km SE of Adak, Alaska with origin time 23:01 UTC on September 20, 2026. The event was offshore. See the M2.2 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-09-20 2026-09-20 23:01:43 UTC | 2.4md | 8 km SSE of Princeton, Canada 49.387°, -120.485° | -0.4 km | 1 | - | - | ✓ Reviewed | USGS → |
A magnitude 2.4 earthquake was recorded 8 km SSE of Princeton, Canada on September 20, 2026 at 23:01 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. | ||||||||
2026-09-20 2026-09-20 22:58:23 UTC | 2.2ml | 31 km NE of Ugashik, Alaska 57.702°, -156.997° | 159.6 km | - | - | - | ✓ Reviewed | USGS → |
On September 20, 2026, worldwide seismic activity registered a magnitude 2.2 earthquake 31 km NE of Ugashik, Alaska at 22:58 UTC. The event was offshore. See the M2.2 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-09-20 2026-09-20 22:51:20 UTC | 5.0mb | 201 km SSE of Lata, Solomon Islands -12.442°, 166.403° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 5.0 seismic event took place 201 km SSE of Lata, Solomon Islands on September 20, 2026 at 22:51 UTC. See the M5.0 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-09-20 2026-09-20 22:13:44 UTC | 2.2ml | 14 km NNE of Pāhala, Hawaii 19.327°, -155.441° | 24.8 km | - | - | - | ✓ Reviewed | USGS → |
This magnitude 2.2 event was detected 14 km NNE of Pāhala, Hawaii on September 20, 2026, with origin time 22:13 UTC. This event falls inside the aftershock decay of a nearby magnitude 2.3 earthquake that occurred about 22 hours earlier. See the M2.2 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-09-20 2026-09-20 22:09:59 UTC | 4.9mb | southeast of the Loyalty Islands -23.047°, 171.752° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 4.9 earthquake was recorded southeast of the Loyalty Islands on September 20, 2026 at 22:09 UTC. See the M4.9 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-09-20 2026-09-20 22:02:55 UTC | 2.2ml | 18 km SE of Silver Springs, Nevada 39.318°, -119.051° | 9.2 km | - | - | - | ✓ Reviewed | USGS → |
On September 20, 2026 at 22:02 UTC, a magnitude 2.2 earthquake struck 18 km SE of Silver Springs, Nevada. The event was offshore. See the M2.2 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-09-20 2026-09-20 21:48:09 UTC | 2.9ml | 170 km WSW of Nikolski, Alaska 52.238°, -171.102° | 96.8 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 2.9 seismic event took place 170 km WSW of Nikolski, Alaska on September 20, 2026 at 21:48 UTC. This event falls inside the aftershock decay of a nearby magnitude 3.2 earthquake that occurred about 18 hours earlier. See the M2.9 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-09-20 2026-09-20 21:37:59 UTC | 2.0ml | 48 km NW of Toyah, Texas 31.647°, -104.122° | 1.9 km | - | - | - | ✓ Reviewed | USGS → |
On September 20, 2026 at 21:37 UTC, a magnitude 2.0 earthquake struck 48 km NW of Toyah, Texas. 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. | ||||||||
2026-09-20 2026-09-20 21:35:06 UTC | 2.3md | 1 km NNW of Sabana Eneas, Puerto Rico 18.100°, -67.087° | 24.1 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 2.3 seismic event took place 1 km NNW of Sabana Eneas, Puerto Rico on September 20, 2026 at 21:35 UTC. See the M2.3 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-09-20 2026-09-20 21:33:28 UTC | 2.2md | 1 km NW of Guánica, Puerto Rico 17.978°, -66.916° | 15.0 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 2.2 seismic event took place 1 km NW of Guánica, Puerto Rico on September 20, 2026 at 21:33 UTC. It arrived roughly 1 hours after a larger magnitude 3.0 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. | ||||||||
2026-09-20 2026-09-20 21:30:56 UTC | 2.4md | 2 km SW of Indios, Puerto Rico 17.979°, -66.836° | 11.3 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 2.4 seismic event took place 2 km SW of Indios, Puerto Rico on September 20, 2026 at 21:30 UTC. It arrived roughly 1 hours after a larger magnitude 3.0 mainshock in the same 20 km area, placing it within the typical aftershock window. The event was offshore. See the M2.4 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-09-20 2026-09-20 21:18:38 UTC | 2.4ml | 68 km NE of Nikolai, Alaska 63.438°, -153.404° | 1.8 km | - | - | - | ✓ Reviewed | USGS → |
Seismographs logged a magnitude 2.4 earthquake 68 km NE of Nikolai, Alaska with origin time 21:18 UTC on September 20, 2026. 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. | ||||||||
2026-09-20 2026-09-20 21:06:20 UTC | 5.0mb | 246 km SSE of False Pass, Alaska 52.711°, -162.460° | 16.4 km | - | - | green | ✓ Reviewed | USGS → |
September 20, 2026 brought a magnitude 5.0 earthquake 246 km SSE of False Pass, Alaska, logged at 21:06 UTC. The USGS PAGER system assigned a green alert level for this event, signalling no significant casualties or damage expected. See the M5.0 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-09-20 2026-09-20 20:54:37 UTC | 5.5mww | south of Africa -48.452°, 31.252° | 10.0 km | - | - | green | ✓ Reviewed | USGS → |
A magnitude 5.5 earthquake was recorded south of Africa on September 20, 2026 at 20:54 UTC. The USGS PAGER system assigned a green alert level for this event, signalling no significant casualties or damage expected. See the M5.5 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-09-20 2026-09-20 20:41:20 UTC | 4.5mb | 41 km ESE of Khuzdar, Pakistan 27.689°, 67.007° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
At 20:41 UTC on September 20, 2026, a magnitude 4.5 tremor occurred 41 km ESE of Khuzdar, Pakistan. See the M4.5 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-09-20 2026-09-20 20:32:36 UTC | 3.0md | 4 km WSW of Guánica, Puerto Rico 17.957°, -66.951° | 8.0 km | 1 | - | - | ✓ Reviewed | USGS → |
This magnitude 3.0 event was detected 4 km WSW of Guánica, Puerto Rico on September 20, 2026, with origin time 20:32 UTC. In the 72 hours after this event, the USGS recorded 4 smaller earthquakes within 20 km, consistent with an ongoing aftershock sequence rooted here. See the M3.0 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-09-20 2026-09-20 19:59:16 UTC | 2.8ml | 112 km E of Chignik, Alaska 56.148°, -156.615° | 1.3 km | - | - | - | ✓ Reviewed | USGS → |
Seismographs logged a magnitude 2.8 earthquake 112 km E of Chignik, Alaska with origin time 19:59 UTC on September 20, 2026. This very shallow event was close enough to the surface that even modest magnitudes can produce significant local shaking. See the M2.8 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-09-20 2026-09-20 19:50:17 UTC | 3.0ml | 12 km SW of Estacion Coahuila, B.C., MX 32.121°, -115.093° | 19.1 km | - | - | - | ✓ Reviewed | USGS → |
The USGS recorded this magnitude 3.0 earthquake 12 km SW of Estacion Coahuila, B.C., MX at 19:50 UTC on September 20, 2026. The event was offshore. See the M3.0 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-09-20 2026-09-20 19:49:40 UTC | 2.4ml | 12 km SW of Estacion Coahuila, B.C., MX 32.120°, -115.089° | 19.5 km | - | - | - | ✓ Reviewed | USGS → |
September 20, 2026 brought a magnitude 2.4 earthquake 12 km SW of Estacion Coahuila, B.C., MX, logged at 19:49 UTC. The event was offshore. See the M2.4 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-09-20 2026-09-20 19:23:14 UTC | 2.9mb_lg | 29 km ENE of Malaga, New Mexico 32.282°, -103.770° | 7.6 km | - | - | - | ✓ Reviewed | USGS → |
September 20, 2026 brought a magnitude 2.9 earthquake 29 km ENE of Malaga, New Mexico, logged at 19:23 UTC. See the M2.9 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-09-20 2026-09-20 19:15:55 UTC | 3.3ml | 172 km SW of Nikolski, Alaska 52.070°, -170.971° | 105.5 km | - | I | - | ✓ Reviewed | USGS → |
This magnitude 3.3 event was detected 172 km SW of Nikolski, Alaska on September 20, 2026, with origin time 19:15 UTC. The event was offshore. See the M3.3 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-09-20 2026-09-20 18:27:12 UTC | 2.3ml | 12 km S of Waikoloa, Hawaii 19.826°, -155.767° | 8.9 km | - | - | - | ✓ Reviewed | USGS → |
On September 20, 2026 at 18:27 UTC, a magnitude 2.3 earthquake struck 12 km S of Waikoloa, Hawaii. The event was offshore. See the M2.3 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 20, 2026. Data includes all events of magnitude 1.0 or greater. Past earthquake data is considered final after review by USGS seismologists.