Earthquakes on July 31, 2026
258
EARTHQUAKES on July 31, 2026
24-hour UTC period · USGS data
154 km deep · 13 people felt it
Normal activitycompared to daily average (~250/day)
Magnitude Breakdown
M5.0+
8
M4.0–4.9
26
M3.0–3.9
10
M2.0–2.9
46
M1.0–1.9
168
Activity Summary
258
Total earthquakes
~250
Daily average
Normal
Activity level
8
M5.0+ events
Geographic Breakdown
By US State
Top Countries (International)
Significant Earthquakes (M4.5+)
5.6
13 km ENE of San Fernando, Peru
00:58 UTC · 154.4 km deep
Felt by 13
5.3
140 km ENE of Masohi, Indonesia
20:19 UTC · 10.0 km deep
5.2
85 km SW of El Arenal, Mexico
16:15 UTC · 10.0 km deep
5.1
132 km ENE of Masohi, Indonesia
23:17 UTC · 10.0 km deep
5.1
South Sandwich Islands region
18:58 UTC · 77.7 km deep
5.0
76 km W of Coquimbo, Chile
17:47 UTC · 11.9 km deep
5.0
Kermadec Islands region
06:30 UTC · 37.8 km deep
5.0
Kermadec Islands region
04:02 UTC · 35.0 km deep
Earthquake Map — July 31, 2026
All Earthquakes — July 31, 2026
Showing 30 of 90 (filtered from 258)
(Filtered to M2.0+. Change the magnitude filter to see smaller events.)
| Time ↓ | Mag ↕ | Location ↕ | Depth ↕ | Felt ↕ | MMI | Alert | Status | Details |
|---|---|---|---|---|---|---|---|---|
2026-07-31 2026-07-31 23:55:33 UTC | 2.2ml | 64 km NNE of White Mountain, Alaska 65.188°, -162.734° | 7.7 km | - | - | - | ✓ Reviewed | USGS → |
Seismographs logged a magnitude 2.2 earthquake 64 km NNE of White Mountain, Alaska with origin time 23:55 UTC on July 31, 2026. See the M2.2 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-07-31 2026-07-31 23:46:39 UTC | 3.0ml | 98 km SE of Nikolski, Alaska 52.225°, -168.013° | 21.7 km | - | - | - | ✓ Reviewed | USGS → |
Seismographs logged a magnitude 3.0 earthquake 98 km SE of Nikolski, Alaska with origin time 23:46 UTC on July 31, 2026. It arrived roughly 1 hours after a larger magnitude 3.1 mainshock in the same 20 km area, placing it within the typical aftershock window. The event was offshore. See the M3.0 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-07-31 2026-07-31 23:46:02 UTC | 3.1ml | 95 km SE of Nikolski, Alaska 52.300°, -167.914° | 13.5 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 3.1 seismic event took place 95 km SE of Nikolski, Alaska on July 31, 2026 at 23:46 UTC. The event was offshore. See the M3.1 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-07-31 2026-07-31 23:37:42 UTC | 2.2ml | 2 km N of Culver City, CA 34.042°, -118.394° | 13.0 km | 8 | - | - | ✓ Reviewed | USGS → |
The USGS recorded this magnitude 2.2 earthquake 2 km N of Culver City, CA at 23:37 UTC on July 31, 2026. The event was offshore. See the M2.2 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-07-31 2026-07-31 23:36:03 UTC | 4.5mb | 40 km ESE of Sulangan, Philippines 10.743°, 126.145° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
The USGS recorded this magnitude 4.5 earthquake 40 km ESE of Sulangan, Philippines at 23:36 UTC on July 31, 2026. See the M4.5 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-07-31 2026-07-31 23:18:27 UTC | 2.6ml | 189 km SSE of Unalaska, Alaska 52.290°, -165.479° | 2.5 km | - | - | - | ✓ Reviewed | USGS → |
At 23:18 UTC on July 31, 2026, a magnitude 2.6 tremor occurred 189 km SSE of Unalaska, Alaska. This very shallow event was close enough to the surface that even modest magnitudes can produce significant local shaking. See the M2.6 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-07-31 2026-07-31 23:17:37 UTC | 5.1mb | 132 km ENE of Masohi, Indonesia -3.003°, 130.124° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
On July 31, 2026, worldwide seismic activity registered a magnitude 5.1 earthquake 132 km ENE of Masohi, Indonesia at 23:17 UTC. It arrived roughly 3 hours after a larger magnitude 5.3 mainshock in the same 20 km area, placing it within the typical aftershock window. See the M5.1 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-07-31 2026-07-31 23:00:02 UTC | 2.5ml | 160 km W of Adak, Alaska 51.729°, -178.953° | 98.5 km | - | - | - | ✓ Reviewed | USGS → |
July 31, 2026 brought a magnitude 2.5 earthquake 160 km W of Adak, Alaska, logged at 23:00 UTC. The event was offshore. See the M2.5 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-07-31 2026-07-31 23:00:02 UTC | 2.5ml | 160 km W of Adak, Alaska 51.840°, -178.961° | 95.4 km | - | - | - | ✓ Reviewed | USGS → |
On July 31, 2026 at 23:00 UTC, a magnitude 2.5 earthquake struck 160 km W of Adak, Alaska. The event was offshore. See the M2.5 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-07-31 2026-07-31 22:57:16 UTC | 2.1ml | 90 km E of Nikolski, Alaska 52.826°, -167.530° | 38.9 km | - | - | - | ✓ Reviewed | USGS → |
On July 31, 2026 at 22:57 UTC, a magnitude 2.1 earthquake struck 90 km E of Nikolski, Alaska. The event was offshore. See the M2.1 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-07-31 2026-07-31 22:49:55 UTC | 2.3ml | 12 km SE of Pearsall, Texas 28.830°, -98.991° | 7.7 km | - | - | - | ✓ Reviewed | USGS → |
July 31, 2026 brought a magnitude 2.3 earthquake 12 km SE of Pearsall, Texas, logged at 22:49 UTC. The event was offshore. See the M2.3 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-07-31 2026-07-31 22:01:54 UTC | 4.1mb | 117 km ESE of Yamada, Japan 39.216°, 143.275° | 28.1 km | - | - | - | ✓ Reviewed | USGS → |
On July 31, 2026 at 22:01 UTC, a magnitude 4.1 earthquake struck 117 km ESE of Yamada, Japan. See the M4.1 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-07-31 2026-07-31 21:27:50 UTC | 3.6ml | 67 km SE of Atka, Alaska 51.807°, -173.450° | 23.9 km | - | II | - | ✓ Reviewed | USGS → |
At 21:27 UTC on July 31, 2026, a magnitude 3.6 tremor occurred 67 km SE of Atka, Alaska. The event was offshore. See the M3.6 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-07-31 2026-07-31 21:24:10 UTC | 4.5mb | 54 km NE of Simao, China 23.191°, 101.288° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
This magnitude 4.5 event was detected 54 km NE of Simao, China on July 31, 2026, with origin time 21:24 UTC. The event was offshore. See the M4.5 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-07-31 2026-07-31 21:23:58 UTC | 4.4mb | 105 km ESE of Sarangani, Philippines 4.891°, 126.270° | 68.8 km | - | - | - | ✓ Reviewed | USGS → |
July 31, 2026 brought a magnitude 4.4 earthquake 105 km ESE of Sarangani, Philippines, logged at 21:23 UTC. See the M4.4 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-07-31 2026-07-31 21:10:36 UTC | 4.4mb | 144 km ENE of Masohi, Indonesia -2.908°, 130.209° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
On July 31, 2026 at 21:10 UTC, a magnitude 4.4 earthquake struck 144 km ENE of Masohi, Indonesia. Coming 1 hours after a magnitude 5.3 earthquake in the immediate vicinity, it is most likely an aftershock of that larger rupture. See the M4.4 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-07-31 2026-07-31 20:59:14 UTC | 4.4mb | 123 km WSW of Puerto Madero, Mexico 14.201°, -93.439° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 4.4 earthquake was recorded 123 km WSW of Puerto Madero, Mexico on July 31, 2026 at 20:59 UTC. See the M4.4 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-07-31 2026-07-31 20:32:22 UTC | 4.4mb | south of the Fiji Islands -26.793°, -178.825° | 347.1 km | - | - | - | ✓ Reviewed | USGS → |
Seismographs logged a magnitude 4.4 earthquake south of the Fiji Islands with origin time 20:32 UTC on July 31, 2026. This deep-focus earthquake originated far below the brittle crust, deep inside the mantle. See the M4.4 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-07-31 2026-07-31 20:29:10 UTC | 4.6mb | 132 km ENE of Masohi, Indonesia -2.913°, 130.096° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
On July 31, 2026 at 20:29 UTC, a magnitude 4.6 earthquake struck 132 km ENE of Masohi, Indonesia. This event falls inside the aftershock decay of a nearby magnitude 5.3 earthquake that occurred about 1 hours earlier. See the M4.6 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-07-31 2026-07-31 20:26:49 UTC | 4.4mb | 10 km S of Kŭlob, Tajikistan 37.821°, 69.789° | 45.8 km | - | - | - | ✓ Reviewed | USGS → |
On July 31, 2026, worldwide seismic activity registered a magnitude 4.4 earthquake 10 km S of Kŭlob, Tajikistan at 20:26 UTC. The event was offshore. See the M4.4 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-07-31 2026-07-31 20:19:26 UTC | 5.3mww | 140 km ENE of Masohi, Indonesia -2.878°, 130.164° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 5.3 earthquake was recorded 140 km ENE of Masohi, Indonesia on July 31, 2026 at 20:19 UTC. In the 72 hours after this event, the USGS recorded 3 smaller earthquakes within 20 km, consistent with an ongoing aftershock sequence rooted here. See the M5.3 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-07-31 2026-07-31 20:11:01 UTC | 2.2ml | 42 km S of Adak, Alaska 51.502°, -176.742° | 63.5 km | - | - | - | ✓ Reviewed | USGS → |
On July 31, 2026, worldwide seismic activity registered a magnitude 2.2 earthquake 42 km S of Adak, Alaska at 20:11 UTC. The event was offshore. See the M2.2 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-07-31 2026-07-31 20:10:15 UTC | 3.0ml | 9 km W of Palomar Observatory, CA 33.353°, -116.956° | 14.4 km | 360 | - | - | ✓ Reviewed | USGS → |
At 20:10 UTC on July 31, 2026, a magnitude 3.0 tremor occurred 9 km W of Palomar Observatory, CA. The event was offshore. See the M3.0 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-07-31 2026-07-31 20:06:49 UTC | 2.4ml | 235 km W of Adak, Alaska 51.575°, 179.992° | 15.1 km | - | - | - | ✓ Reviewed | USGS → |
At 20:06 UTC on July 31, 2026, a magnitude 2.4 tremor occurred 235 km W of Adak, Alaska. The event was offshore. See the M2.4 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-07-31 2026-07-31 20:02:42 UTC | 2.9md | 11 km ESE of Gilroy, CA 36.966°, -121.450° | 5.4 km | 8 | - | - | Auto | USGS → |
The USGS recorded this magnitude 2.9 earthquake 11 km ESE of Gilroy, CA at 20:02 UTC on July 31, 2026. See the M2.9 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-07-31 2026-07-31 19:57:27 UTC | 4.3mb | 36 km WSW of El Arenal, Mexico 15.066°, -93.024° | 68.0 km | - | - | - | ✓ Reviewed | USGS → |
This magnitude 4.3 event was detected 36 km WSW of El Arenal, Mexico on July 31, 2026, with origin time 19:57 UTC. See the M4.3 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-07-31 2026-07-31 19:51:40 UTC | 2.4ml | 99 km SE of Akutan, Alaska 53.600°, -164.568° | 1.1 km | - | - | - | ✓ Reviewed | USGS → |
The USGS recorded this magnitude 2.4 earthquake 99 km SE of Akutan, Alaska at 19:51 UTC on July 31, 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. | ||||||||
2026-07-31 2026-07-31 18:58:13 UTC | 5.1mb | South Sandwich Islands region -58.713°, -25.288° | 77.7 km | - | - | - | ✓ Reviewed | USGS → |
At 18:58 UTC on July 31, 2026, a magnitude 5.1 tremor occurred in the South Sandwich Islands region. See the M5.1 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-07-31 2026-07-31 18:55:52 UTC | 3.1mb_lg | 17 km SSE of Miramichi, Canada 46.891°, -65.403° | 10.0 km | 22 | - | - | ✓ Reviewed | USGS → |
July 31, 2026 brought a magnitude 3.1 earthquake 17 km SSE of Miramichi, Canada, logged at 18:55 UTC. See the M3.1 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-07-31 2026-07-31 18:41:07 UTC | 2.3ml | 58 km S of Whites City, New Mexico 31.648°, -104.431° | 5.9 km | - | - | - | ✓ Reviewed | USGS → |
On July 31, 2026 at 18:41 UTC, a magnitude 2.3 earthquake struck 58 km S of Whites City, New Mexico. 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 July 31, 2026. Data includes all events of magnitude 1.0 or greater. Past earthquake data is considered final after review by USGS seismologists.