Earthquakes on August 3, 2026
223
EARTHQUAKES on August 3, 2026
24-hour UTC period · USGS data
125 km deep · 5 people felt it
Normal activitycompared to daily average (~250/day)
Magnitude Breakdown
M5.0+
2
M4.0–4.9
16
M3.0–3.9
21
M2.0–2.9
54
M1.0–1.9
130
Activity Summary
223
Total earthquakes
~250
Daily average
Normal
Activity level
2
M5.0+ events
Significant Earthquakes (M4.5+)
5.2
66 km WNW of San Alejandro, Peru
01:42 UTC · 125.3 km deep
Felt by 5
5.0
36 km NNE of Suez, Egypt
00:00 UTC · 10.0 km deep
Felt by 426
4.9
204 km SE of Severo-Kuril’sk, Russia
21:42 UTC · 10.0 km deep
4.9
85 km S of Severo-Kuril’sk, Russia
11:26 UTC · 57.7 km deep
4.9
14 km ESE of Yibin, China
05:00 UTC · 10.0 km deep
4.8
106 km NW of Gizo, Solomon Islands
13:14 UTC · 35.0 km deep
4.7
64 km SSW of Midelt, Morocco
20:14 UTC · 10.0 km deep
Felt by 2
4.7
61 km S of Shikotan, Russia
14:39 UTC · 35.0 km deep
Earthquake Map — August 3, 2026
All Earthquakes — August 3, 2026
Showing 30 of 93 (filtered from 223)
(Filtered to M2.0+. Change the magnitude filter to see smaller events.)
| Time ↓ | Mag ↕ | Location ↕ | Depth ↕ | Felt ↕ | MMI | Alert | Status | Details |
|---|---|---|---|---|---|---|---|---|
2026-08-03 2026-08-03 23:55:45 UTC | 3.0ml | 211 km S of False Pass, Alaska 52.961°, -163.129° | 5.0 km | - | - | - | ✓ Reviewed | USGS → |
This magnitude 3.0 event was detected 211 km S of False Pass, Alaska on August 3, 2026, with origin time 23:55 UTC. The event was offshore. See the M3.0 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-08-03 2026-08-03 23:51:25 UTC | 3.2ml | 231 km ESE of Attu Station, Alaska 52.065°, 176.341° | 5.0 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 3.2 earthquake was recorded 231 km ESE of Attu Station, Alaska on August 3, 2026 at 23:51 UTC. This event falls inside the aftershock decay of a nearby magnitude 4.0 earthquake that occurred about 1 hours earlier. See the M3.2 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-08-03 2026-08-03 23:06:08 UTC | 2.5ml | 95 km SSW of Unalaska, Alaska 53.047°, -166.933° | 38.5 km | - | - | - | ✓ Reviewed | USGS → |
The USGS recorded this magnitude 2.5 earthquake 95 km SSW of Unalaska, Alaska at 23:06 UTC on August 3, 2026. See the M2.5 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-08-03 2026-08-03 22:53:19 UTC | 4.0ml | 229 km ESE of Attu Station, Alaska 51.973°, 176.246° | 5.0 km | - | II | - | ✓ Reviewed | USGS → |
The USGS recorded this magnitude 4.0 earthquake 229 km ESE of Attu Station, Alaska at 22:53 UTC on August 3, 2026. See the M4.0 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-08-03 2026-08-03 22:52:44 UTC | 2.4ml | 124 km SW of Adak, Alaska 51.153°, -178.007° | 20.0 km | - | - | - | ✓ Reviewed | USGS → |
Seismographs logged a magnitude 2.4 earthquake 124 km SW of Adak, Alaska with origin time 22:52 UTC on August 3, 2026. The event was offshore. See the M2.4 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-08-03 2026-08-03 22:42:55 UTC | 3.5ml | 232 km ESE of Attu Station, Alaska 51.909°, 176.233° | 5.0 km | - | I | - | ✓ Reviewed | USGS → |
On August 3, 2026, worldwide seismic activity registered a magnitude 3.5 earthquake 232 km ESE of Attu Station, Alaska at 22:42 UTC. Coming 8 hours after a magnitude 4.0 earthquake in the immediate vicinity, it is most likely an aftershock of that larger rupture. See the M3.5 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-08-03 2026-08-03 22:26:35 UTC | 2.8ml | 18 km ESE of Port Graham, Alaska 59.289°, -151.537° | 38.2 km | - | - | - | ✓ Reviewed | USGS → |
Seismographs logged a magnitude 2.8 earthquake 18 km ESE of Port Graham, Alaska with origin time 22:26 UTC on August 3, 2026. See the M2.8 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-08-03 2026-08-03 22:18:15 UTC | 2.3md | 3 km S of Guánica, Puerto Rico 17.944°, -66.913° | 14.5 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 2.3 earthquake was recorded 3 km S of Guánica, Puerto Rico on August 3, 2026 at 22:18 UTC. Coming 12 hours after a magnitude 2.8 earthquake in the immediate vicinity, it is most likely an aftershock of that larger rupture. The event was offshore. See the M2.3 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-08-03 2026-08-03 22:15:25 UTC | 4.1mb | 39 km SE of Ḩājjīābād, Iran 28.061°, 56.185° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
At 22:15 UTC on August 3, 2026, a magnitude 4.1 tremor occurred 39 km SE of Ḩājjīābād, Iran. The event was offshore. See the M4.1 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-08-03 2026-08-03 22:14:34 UTC | 2.0ml | 60 km SSW of Adak, Alaska 51.407°, -177.072° | 37.0 km | - | - | - | ✓ Reviewed | USGS → |
On August 3, 2026, worldwide seismic activity registered a magnitude 2.0 earthquake 60 km SSW of Adak, Alaska at 22:14 UTC. See the M2.0 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-08-03 2026-08-03 21:47:43 UTC | 2.6ml | 227 km WSW of Adak, Alaska 51.511°, -179.866° | 78.7 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 2.6 seismic event took place 227 km WSW of Adak, Alaska on August 3, 2026 at 21:47 UTC. See the M2.6 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-08-03 2026-08-03 21:42:13 UTC | 4.9mb | 204 km SE of Severo-Kuril’sk, Russia 49.232°, 157.899° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
Seismographs logged a magnitude 4.9 earthquake 204 km SE of Severo-Kuril’sk, Russia with origin time 21:42 UTC on August 3, 2026. The event was offshore. See the M4.9 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-08-03 2026-08-03 20:47:08 UTC | 4.4mb | 34 km ESE of Vallenar, Chile -28.746°, -70.469° | 95.7 km | - | - | - | ✓ Reviewed | USGS → |
Seismographs logged a magnitude 4.4 earthquake 34 km ESE of Vallenar, Chile with origin time 20:47 UTC on August 3, 2026. See the M4.4 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-08-03 2026-08-03 20:32:46 UTC | 3.4ml | 118 km SSE of Sand Point, Alaska 54.389°, -159.642° | 35.0 km | - | - | - | ✓ Reviewed | USGS → |
This magnitude 3.4 event was detected 118 km SSE of Sand Point, Alaska on August 3, 2026, with origin time 20:32 UTC. See the M3.4 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-08-03 2026-08-03 20:19:51 UTC | 3.0ml | 233 km ESE of Attu Station, Alaska 51.999°, 176.329° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
Reports of a magnitude 3.0 earthquake 233 km ESE of Attu Station, Alaska came in on August 3, 2026 at 20:19 UTC. This event falls inside the aftershock decay of a nearby magnitude 4.0 earthquake that occurred about 5 hours earlier. See the M3.0 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-08-03 2026-08-03 20:14:45 UTC | 4.7mww | 64 km SSW of Midelt, Morocco 32.201°, -5.125° | 10.0 km | 2 | - | - | ✓ Reviewed | USGS → |
This magnitude 4.7 event was detected 64 km SSW of Midelt, Morocco on August 3, 2026, with origin time 20:14 UTC. See the M4.7 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-08-03 2026-08-03 19:43:05 UTC | 2.1md | 15 km N of Morgan Hill, CA 37.265°, -121.645° | 2.5 km | - | - | - | Auto | USGS → |
Seismographs logged a magnitude 2.1 earthquake 15 km N of Morgan Hill, CA with origin time 19:43 UTC on August 3, 2026. 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. | ||||||||
2026-08-03 2026-08-03 19:15:16 UTC | 2.5ml | 22 km SSE of Lindsay, Texas 31.170°, -103.482° | 3.1 km | - | - | - | ✓ Reviewed | USGS → |
This magnitude 2.5 event was detected 22 km SSE of Lindsay, Texas on August 3, 2026, with origin time 19:15 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. | ||||||||
2026-08-03 2026-08-03 19:09:29 UTC | 3.6ml | 226 km ESE of Attu Station, Alaska 52.002°, 176.222° | 10.0 km | - | I | - | ✓ Reviewed | USGS → |
On August 3, 2026 at 19:09 UTC, a magnitude 3.6 earthquake struck 226 km ESE of Attu Station, Alaska. Coming 4 hours after a magnitude 4.0 earthquake in the immediate vicinity, it is most likely an aftershock of that larger rupture. See the M3.6 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-08-03 2026-08-03 18:48:39 UTC | 2.2ml | 18 km W of Happy Valley, Alaska 59.932°, -152.055° | 76.9 km | - | - | - | ✓ Reviewed | USGS → |
Seismographs logged a magnitude 2.2 earthquake 18 km W of Happy Valley, Alaska with origin time 18:48 UTC on August 3, 2026. The event was offshore. See the M2.2 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-08-03 2026-08-03 18:28:06 UTC | 2.3ml | 62 km SSE of Adak, Alaska 51.389°, -176.184° | 18.0 km | - | - | - | ✓ Reviewed | USGS → |
August 3, 2026 brought a magnitude 2.3 earthquake 62 km SSE of Adak, Alaska, logged at 18:28 UTC. See the M2.3 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-08-03 2026-08-03 18:17:33 UTC | 3.3ml | 68 km SSW of Nikolski, Alaska 52.404°, -169.366° | 35.0 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 3.3 seismic event took place 68 km SSW of Nikolski, Alaska on August 3, 2026 at 18:17 UTC. See the M3.3 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-08-03 2026-08-03 18:09:09 UTC | 2.4ml | 105 km E of Akutan, Alaska 54.005°, -164.184° | 15.6 km | - | - | - | ✓ Reviewed | USGS → |
On August 3, 2026, worldwide seismic activity registered a magnitude 2.4 earthquake 105 km E of Akutan, Alaska at 18:09 UTC. The event was offshore. See the M2.4 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-08-03 2026-08-03 17:58:29 UTC | 2.4md | 10 km SE of Tres Pinos, CA 36.726°, -121.239° | 13.0 km | - | - | - | Auto | USGS → |
This magnitude 2.4 event was detected 10 km SE of Tres Pinos, CA on August 3, 2026, with origin time 17:58 UTC. The event was offshore. See the M2.4 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-08-03 2026-08-03 17:45:37 UTC | 2.0ml | 11 km ENE of Fritz Creek, Alaska 59.766°, -151.103° | 56.5 km | - | - | - | ✓ Reviewed | USGS → |
At 17:45 UTC on August 3, 2026, a magnitude 2.0 tremor occurred 11 km ENE of Fritz Creek, Alaska. See the M2.0 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-08-03 2026-08-03 17:43:01 UTC | 2.7ml | 36 km SE of False Pass, Alaska 54.650°, -162.976° | 6.9 km | - | - | - | ✓ Reviewed | USGS → |
On August 3, 2026, worldwide seismic activity registered a magnitude 2.7 earthquake 36 km SE of False Pass, Alaska at 17:43 UTC. The event was offshore. See the M2.7 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-08-03 2026-08-03 17:31:30 UTC | 2.1ml | 24 km SSW of Westbrook, Texas 32.141°, -101.081° | 9.4 km | - | - | - | ✓ Reviewed | USGS → |
August 3, 2026 brought a magnitude 2.1 earthquake 24 km SSW of Westbrook, Texas, logged at 17:31 UTC. In the 72 hours after this event, the USGS recorded 8 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. | ||||||||
2026-08-03 2026-08-03 17:16:24 UTC | 2.5ml | 13 km ESE of Pearsall, Texas 28.845°, -98.971° | 8.3 km | - | - | - | ✓ Reviewed | USGS → |
Reports of a magnitude 2.5 earthquake 13 km ESE of Pearsall, Texas came in on August 3, 2026 at 17:16 UTC. See the M2.5 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-08-03 2026-08-03 17:09:03 UTC | 2.2md | 3 km NW of Guayanilla, Puerto Rico 18.042°, -66.809° | 14.7 km | - | - | - | ✓ Reviewed | USGS → |
Reports of a magnitude 2.2 earthquake 3 km NW of Guayanilla, Puerto Rico came in on August 3, 2026 at 17:09 UTC. Coming 7 hours after a magnitude 2.8 earthquake in the immediate vicinity, it is most likely an aftershock of that larger rupture. The event was offshore. See the M2.2 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-08-03 2026-08-03 16:57:45 UTC | 3.5ml | 230 km ESE of Attu Station, Alaska 52.095°, 176.348° | 5.0 km | - | I | - | ✓ Reviewed | USGS → |
At 16:57 UTC on August 3, 2026, a magnitude 3.5 tremor occurred 230 km ESE of Attu Station, Alaska. It arrived roughly 2 hours after a larger magnitude 4.0 mainshock in the same 20 km area, placing it within the typical aftershock window. See the M3.5 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 August 3, 2026. Data includes all events of magnitude 1.0 or greater. Past earthquake data is considered final after review by USGS seismologists.