Earthquakes on September 27, 2026
276
EARTHQUAKES on September 27, 2026
24-hour UTC period · USGS data
LARGEST: M5.3 — Balleny Islands region
10 km deep
Normal activitycompared to daily average (~250/day)
Magnitude Breakdown
M5.0+
5
M4.0–4.9
35
M3.0–3.9
13
M2.0–2.9
83
M1.0–1.9
140
Activity Summary
276
Total earthquakes
~250
Daily average
Normal
Activity level
5
M5.0+ events
Geographic Breakdown
By US State
Top Countries (International)
Significant Earthquakes (M4.5+)
5.3
Balleny Islands region
15:41 UTC · 10.0 km deep
5.1
90 km ENE of Tadine, New Caledonia
02:22 UTC · 10.0 km deep
5.0
South Sandwich Islands region
21:13 UTC · 117.7 km deep
5.0
191 km NW of Oula Xiuma, China
16:43 UTC · 10.0 km deep
5.0
61 km ENE of Tadine, New Caledonia
01:18 UTC · 10.0 km deep
4.9
159 km ESE of Gizo, Solomon Islands
04:59 UTC · 10.0 km deep
4.8
117 km SSE of Panguna, Papua New Guinea
22:47 UTC · 10.0 km deep
4.8
7 km WSW of Guaymate, Dominican Republic
21:49 UTC · 113.0 km deep
Felt by 238
Earthquake Map — September 27, 2026
All Earthquakes — September 27, 2026
Showing 30 of 136 (filtered from 276)
(Filtered to M2.0+. Change the magnitude filter to see smaller events.)
| Time ↓ | Mag ↕ | Location ↕ | Depth ↕ | Felt ↕ | MMI | Alert | Status | Details |
|---|---|---|---|---|---|---|---|---|
2026-09-27 2026-09-27 23:55:48 UTC | 4.3mb | south of the Fiji Islands -22.066°, -179.765° | 596.8 km | - | - | - | ✓ Reviewed | USGS → |
On September 27, 2026, worldwide seismic activity registered a magnitude 4.3 earthquake south of the Fiji Islands at 23:55 UTC. This is the deepest earthquake in the current dataset — a deep-focus event. See the M4.3 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-09-27 2026-09-27 23:45:52 UTC | 2.5ml | 59 km NW of Toyah, Texas 31.617°, -104.312° | 8.5 km | - | - | - | ✓ Reviewed | USGS → |
September 27, 2026 brought a magnitude 2.5 earthquake 59 km NW of Toyah, Texas, logged at 23:45 UTC. The event was offshore. See the M2.5 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-09-27 2026-09-27 23:11:04 UTC | 2.1ml | 103 km N of Yakutat, Alaska 60.471°, -139.511° | 4.7 km | - | - | - | ✓ Reviewed | USGS → |
At 23:11 UTC on September 27, 2026, a magnitude 2.1 tremor occurred 103 km N of Yakutat, Alaska. 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. | ||||||||
2026-09-27 2026-09-27 23:08:03 UTC | 2.0ml | 122 km ESE of Cordova, Alaska 60.297°, -143.585° | 3.6 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 2.0 earthquake was recorded 122 km ESE of Cordova, Alaska on September 27, 2026 at 23:08 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. | ||||||||
2026-09-27 2026-09-27 23:02:56 UTC | 2.1md | 14 km N of Brooktrails, CA 39.571°, -123.379° | 7.5 km | - | - | - | ✓ Reviewed | USGS → |
On September 27, 2026, worldwide seismic activity registered a magnitude 2.1 earthquake 14 km N of Brooktrails, CA at 23:02 UTC. The event was offshore. See the M2.1 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-09-27 2026-09-27 22:47:06 UTC | 4.8mb | 117 km SSE of Panguna, Papua New Guinea -7.347°, 155.747° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
This magnitude 4.8 event was detected 117 km SSE of Panguna, Papua New Guinea on September 27, 2026, with origin time 22:47 UTC. See the M4.8 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-09-27 2026-09-27 22:40:54 UTC | 4.4mb | 93 km NE of Tadine, New Caledonia -21.076°, 168.630° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
September 27, 2026 brought a magnitude 4.4 earthquake 93 km NE of Tadine, New Caledonia, logged at 22:40 UTC. This event falls inside the aftershock decay of a nearby magnitude 4.5 earthquake that occurred about 18 hours earlier. The event was offshore. See the M4.4 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-09-27 2026-09-27 22:32:41 UTC | 2.3ml | 81 km NW of Nondalton, Alaska 60.540°, -155.786° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
September 27, 2026 brought a magnitude 2.3 earthquake 81 km NW of Nondalton, Alaska, logged at 22:32 UTC. The event was offshore. See the M2.3 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-09-27 2026-09-27 22:10:29 UTC | 2.1md | 5 km WSW of Yountville, CA 38.375°, -122.414° | 8.6 km | 3 | - | - | ✓ Reviewed | USGS → |
A magnitude 2.1 earthquake was recorded 5 km WSW of Yountville, CA on September 27, 2026 at 22:10 UTC. See the M2.1 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-09-27 2026-09-27 22:09:02 UTC | 3.5ml | 73 km SSW of Atka, Alaska 51.578°, -174.561° | 10.0 km | - | II | - | ✓ Reviewed | USGS → |
A magnitude 3.5 earthquake was recorded 73 km SSW of Atka, Alaska on September 27, 2026 at 22:09 UTC. See the M3.5 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-09-27 2026-09-27 22:06:22 UTC | 2.0ml | 58 km WNW of Nanwalek, Alaska 59.597°, -152.829° | 94.7 km | - | - | - | ✓ Reviewed | USGS → |
Seismographs logged a magnitude 2.0 earthquake 58 km WNW of Nanwalek, Alaska with origin time 22:06 UTC on September 27, 2026. Coming 1 hours after a magnitude 2.2 earthquake in the immediate vicinity, it is most likely an aftershock of that larger rupture. See the M2.0 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-09-27 2026-09-27 22:03:35 UTC | 3.1ml | 86 km ESE of Atka, Alaska 51.821°, -173.092° | 28.7 km | - | - | - | ✓ Reviewed | USGS → |
September 27, 2026 brought a magnitude 3.1 earthquake 86 km ESE of Atka, Alaska, logged at 22:03 UTC. See the M3.1 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-09-27 2026-09-27 21:57:52 UTC | 4.6mb | 23 km SW of Sipí, Colombia 4.503°, -76.790° | 71.7 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 4.6 seismic event took place 23 km SW of Sipí, Colombia on September 27, 2026 at 21:57 UTC. The event was offshore. See the M4.6 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-09-27 2026-09-27 21:53:36 UTC | 2.6ml | 37 km ENE of Chase, Alaska 62.610°, -149.463° | 62.5 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 2.6 seismic event took place 37 km ENE of Chase, Alaska on September 27, 2026 at 21:53 UTC. See the M2.6 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-09-27 2026-09-27 21:49:47 UTC | 4.8mww | 7 km WSW of Guaymate, Dominican Republic 18.564°, -69.041° | 113.0 km | 238 | - | - | ✓ Reviewed | USGS → |
Reports of a magnitude 4.8 earthquake 7 km WSW of Guaymate, Dominican Republic came in on September 27, 2026 at 21:49 UTC. See the M4.8 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-09-27 2026-09-27 21:36:20 UTC | 3.3ml | 271 km SE of Sand Point, Alaska 53.511°, -157.733° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
This magnitude 3.3 event was detected 271 km SE of Sand Point, Alaska on September 27, 2026, with origin time 21:36 UTC. The event was offshore. See the M3.3 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-09-27 2026-09-27 21:26:21 UTC | 2.2ml | 47 km W of Anchor Point, Alaska 59.748°, -152.677° | 87.6 km | - | - | - | ✓ Reviewed | USGS → |
Seismographs logged a magnitude 2.2 earthquake 47 km W of Anchor Point, Alaska with origin time 21:26 UTC on September 27, 2026. The event was offshore. See the M2.2 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-09-27 2026-09-27 21:17:13 UTC | 2.6ml | 74 km NNE of Petersville, Alaska 63.142°, -150.421° | 110.5 km | - | - | - | ✓ Reviewed | USGS → |
September 27, 2026 brought a magnitude 2.6 earthquake 74 km NNE of Petersville, Alaska, logged at 21:17 UTC. See the M2.6 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-09-27 2026-09-27 21:16:48 UTC | 2.3ml | 133 km SW of Adak, Alaska 51.155°, -178.166° | 28.0 km | - | - | - | ✓ Reviewed | USGS → |
On September 27, 2026 at 21:16 UTC, a magnitude 2.3 earthquake struck 133 km SW of Adak, Alaska. The event was offshore. See the M2.3 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-09-27 2026-09-27 21:14:44 UTC | 4.6mb | 59 km WNW of Pante Makasar, Timor Leste -8.962°, 123.898° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
September 27, 2026 brought a magnitude 4.6 earthquake 59 km WNW of Pante Makasar, Timor Leste, logged at 21:14 UTC. See the M4.6 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-09-27 2026-09-27 21:13:35 UTC | 5.0mb | South Sandwich Islands region -59.117°, -25.991° | 117.7 km | - | - | - | ✓ Reviewed | USGS → |
Seismographs logged a magnitude 5.0 earthquake in the South Sandwich Islands region with origin time 21:13 UTC on September 27, 2026. See the M5.0 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-09-27 2026-09-27 20:49:21 UTC | 4.4mb | 269 km S of Severo-Kuril’sk, Russia 48.291°, 156.778° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
On September 27, 2026 at 20:49 UTC, a magnitude 4.4 earthquake struck 269 km S of Severo-Kuril’sk, Russia. The event was offshore. See the M4.4 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-09-27 2026-09-27 20:49:20 UTC | 4.0mb | 32 km N of Whakatane, New Zealand -37.665°, 177.008° | 151.3 km | - | - | - | ✓ Reviewed | USGS → |
The USGS recorded this magnitude 4.0 earthquake 32 km N of Whakatane, New Zealand at 20:49 UTC on September 27, 2026. The event was offshore. See the M4.0 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-09-27 2026-09-27 19:45:57 UTC | 2.1md | 5 km WNW of The Geysers, CA 38.791°, -122.808° | 3.0 km | - | - | - | Auto | USGS → |
Seismographs logged a magnitude 2.1 earthquake 5 km WNW of The Geysers, CA with origin time 19:45 UTC on September 27, 2026. In the 72 hours after this event, the USGS recorded 6 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. | ||||||||
2026-09-27 2026-09-27 19:33:31 UTC | 4.1mb | Kermadec Islands region -31.425°, -179.850° | 348.6 km | - | - | - | ✓ Reviewed | USGS → |
Seismographs logged a magnitude 4.1 earthquake in the Kermadec Islands region with origin time 19:33 UTC on September 27, 2026. This deep-focus earthquake originated far below the brittle crust, deep inside the mantle. See the M4.1 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-09-27 2026-09-27 19:22:10 UTC | 4.0mb | Iceland region 68.849°, -17.176° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
This magnitude 4.0 event was detected in the Iceland region on September 27, 2026, with origin time 19:22 UTC. It arrived roughly 8 hours after a larger magnitude 4.3 mainshock in the same 20 km area, placing it within the typical aftershock window. See the M4.0 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-09-27 2026-09-27 19:10:36 UTC | 2.4md | 9 km NW of Redwood Valley, CA 39.323°, -123.270° | 0.1 km | 7 | - | - | ✓ Reviewed | USGS → |
Reports of a magnitude 2.4 earthquake 9 km NW of Redwood Valley, CA came in on September 27, 2026 at 19:10 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. | ||||||||
2026-09-27 2026-09-27 19:05:12 UTC | 4.6mb | 102 km ENE of Tadine, New Caledonia -21.302°, 168.834° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
On September 27, 2026 at 19:05 UTC, a magnitude 4.6 earthquake struck 102 km ENE of Tadine, New Caledonia. This event falls inside the aftershock decay of a nearby magnitude 5.1 earthquake that occurred about 17 hours earlier. See the M4.6 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-09-27 2026-09-27 19:02:29 UTC | 3.4ml | 244 km ESE of Chiniak, Alaska 56.672°, -148.623° | 5.0 km | - | - | - | ✓ Reviewed | USGS → |
On September 27, 2026, worldwide seismic activity registered a magnitude 3.4 earthquake 244 km ESE of Chiniak, Alaska at 19:02 UTC. See the M3.4 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-09-27 2026-09-27 18:55:43 UTC | 4.3mb | 17 km SSE of Chaitén, Chile -43.066°, -72.648° | 10.0 km | 3 | - | - | ✓ Reviewed | USGS → |
At 18:55 UTC on September 27, 2026, a magnitude 4.3 tremor occurred 17 km SSE of Chaitén, Chile. See the M4.3 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 27, 2026. Data includes all events of magnitude 1.0 or greater. Past earthquake data is considered final after review by USGS seismologists.