Earthquakes on July 28, 2026
246
EARTHQUAKES on July 28, 2026
24-hour UTC period · USGS data
10 km deep · 90 people felt it
Normal activitycompared to daily average (~250/day)
Magnitude Breakdown
M5.0+
14
M4.0–4.9
21
M3.0–3.9
23
M2.0–2.9
72
M1.0–1.9
116
Activity Summary
246
Total earthquakes
~250
Daily average
Normal
Activity level
14
M5.0+ events
Geographic Breakdown
By US State
Top Countries (International)
Significant Earthquakes (M4.5+)
6.8
The 2026 Kumamoto Region, Japan Earthquake
07:27 UTC · 10.0 km deep
Felt by 90
5.9
50 km WSW of Brisas Barra de Suchiate, Mexico
05:35 UTC · 35.0 km deep
Felt by 22
5.8
152 km E of Ust’-Kamchatsk Staryy, Russia
04:42 UTC · 10.0 km deep
5.8
194 km NW of Oula Xiuma, China
03:34 UTC · 10.0 km deep
Felt by 1
5.7
199 km NW of Oula Xiuma, China
03:16 UTC · 10.0 km deep
Felt by 1
5.6
16 km NE of Tsunagi, Japan
08:08 UTC · 10.0 km deep
5.4
211 km SE of Kokopo, Papua New Guinea
20:27 UTC · 10.0 km deep
Felt by 1
5.4
109 km S of Akureyri, Iceland
05:36 UTC · 10.0 km deep
Felt by 1
Earthquake Map — July 28, 2026
All Earthquakes — July 28, 2026
Showing 30 of 130 (filtered from 246)
(Filtered to M2.0+. Change the magnitude filter to see smaller events.)
| Time ↓ | Mag ↕ | Location ↕ | Depth ↕ | Felt ↕ | MMI | Alert | Status | Details |
|---|---|---|---|---|---|---|---|---|
2026-07-28 2026-07-28 23:53:36 UTC | 3.2ml | 164 km SSW of Nikolski, Alaska 51.499°, -169.406° | 3.7 km | - | - | - | ✓ Reviewed | USGS → |
Reports of a magnitude 3.2 earthquake 164 km SSW of Nikolski, Alaska came in on July 28, 2026 at 23:53 UTC. This very shallow event was close enough to the surface that even modest magnitudes can produce significant local shaking. See the M3.2 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-07-28 2026-07-28 23:51:44 UTC | 4.8mb | 76 km E of Kokopo, Papua New Guinea -4.393°, 152.954° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
Reports of a magnitude 4.8 earthquake 76 km E of Kokopo, Papua New Guinea came in on July 28, 2026 at 23:51 UTC. The event was offshore. See the M4.8 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-07-28 2026-07-28 23:50:06 UTC | 3.6md | 39 km NNW of San Antonio, Puerto Rico 18.808°, -67.278° | 9.0 km | 1 | - | - | ✓ Reviewed | USGS → |
On July 28, 2026 at 23:50 UTC, a magnitude 3.6 earthquake struck 39 km NNW of San Antonio, Puerto Rico. See the M3.6 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-07-28 2026-07-28 23:26:00 UTC | 2.1ml | 53 km E of Denali National Park, Alaska 63.596°, -150.660° | 0.4 km | - | - | - | ✓ Reviewed | USGS → |
On July 28, 2026, worldwide seismic activity registered a magnitude 2.1 earthquake 53 km E of Denali National Park, Alaska at 23:26 UTC. Coming 3 hours after a magnitude 5.0 earthquake in the immediate vicinity, it is most likely an aftershock of that larger rupture. 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. | ||||||||
2026-07-28 2026-07-28 23:19:37 UTC | 2.1ml | 73 km SSE of Adak, Alaska 51.297°, -176.104° | 17.7 km | - | - | - | ✓ Reviewed | USGS → |
At 23:19 UTC on July 28, 2026, a magnitude 2.1 tremor occurred 73 km SSE of Adak, Alaska. See the M2.1 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-07-28 2026-07-28 22:40:45 UTC | 2.1ml | 19 km SE of Pāhala, Hawaii 19.064°, -155.371° | 32.8 km | - | - | - | ✓ Reviewed | USGS → |
On July 28, 2026 at 22:40 UTC, a magnitude 2.1 earthquake struck 19 km SE of Pāhala, Hawaii. The event was offshore. See the M2.1 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-07-28 2026-07-28 22:39:10 UTC | 2.2md | 8 km NE of Alum Rock, CA 37.410°, -121.754° | 9.0 km | - | - | - | ✓ Reviewed | USGS → |
This magnitude 2.2 event was detected 8 km NE of Alum Rock, CA on July 28, 2026, with origin time 22:39 UTC. The event was offshore. See the M2.2 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-07-28 2026-07-28 22:38:09 UTC | 2.0ml | 15 km SSE of Pāhala, Hawaii 19.075°, -155.421° | 30.8 km | - | - | - | ✓ Reviewed | USGS → |
On July 28, 2026, worldwide seismic activity registered a magnitude 2.0 earthquake 15 km SSE of Pāhala, Hawaii at 22:38 UTC. See the M2.0 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-07-28 2026-07-28 22:18:38 UTC | 3.6mb | 271 km SW of Adak, Alaska 50.052°, -179.195° | 10.0 km | - | III | - | ✓ Reviewed | USGS → |
A magnitude 3.6 earthquake was recorded 271 km SW of Adak, Alaska on July 28, 2026 at 22:18 UTC. The event was offshore. See the M3.6 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-07-28 2026-07-28 22:15:02 UTC | 2.5ml | 44 km WSW of Carlsbad, CA 32.999°, -117.785° | 9.8 km | 1 | - | - | ✓ Reviewed | USGS → |
On July 28, 2026 at 22:15 UTC, a magnitude 2.5 earthquake struck 44 km WSW of Carlsbad, CA. See the M2.5 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-07-28 2026-07-28 22:10:03 UTC | 4.2mb | south of the Fiji Islands -26.157°, 179.466° | 536.8 km | - | - | - | ✓ Reviewed | USGS → |
On July 28, 2026 at 22:10 UTC, a magnitude 4.2 earthquake struck south of the Fiji Islands. This deep-focus earthquake originated far below the brittle crust, deep inside the mantle. See the M4.2 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-07-28 2026-07-28 21:32:35 UTC | 4.8mb | South Sandwich Islands region -58.882°, -23.723° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 4.8 seismic event took place in the South Sandwich Islands region on July 28, 2026 at 21:32 UTC. See the M4.8 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-07-28 2026-07-28 21:30:19 UTC | 2.1md | 5 km SSW of Indios, Puerto Rico 17.946°, -66.839° | 13.3 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 2.1 earthquake was recorded 5 km SSW of Indios, Puerto Rico on July 28, 2026 at 21:30 UTC. It arrived roughly 4 hours after a larger magnitude 3.5 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. | ||||||||
2026-07-28 2026-07-28 21:19:04 UTC | 3.6md | 124 km NNW of The Valley, Anguilla 19.260°, -63.511° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
Seismographs logged a magnitude 3.6 earthquake 124 km NNW of The Valley, Anguilla with origin time 21:19 UTC on July 28, 2026. See the M3.6 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-07-28 2026-07-28 21:14:20 UTC | 2.4ml | 18 km WNW of Ivanof Bay, Alaska 55.935°, -159.774° | 7.9 km | - | - | - | ✓ Reviewed | USGS → |
On July 28, 2026, worldwide seismic activity registered a magnitude 2.4 earthquake 18 km WNW of Ivanof Bay, Alaska at 21:14 UTC. Coming 1 hours after a magnitude 3.7 earthquake in the immediate vicinity, it is most likely an aftershock of that larger rupture. See the M2.4 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-07-28 2026-07-28 21:00:46 UTC | 2.2ml | 60 km WNW of Elfin Cove, Alaska 58.500°, -137.205° | 4.5 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 2.2 seismic event took place 60 km WNW of Elfin Cove, Alaska on July 28, 2026 at 21:00 UTC. This very shallow event was close enough to the surface that even modest magnitudes can produce significant local shaking. See the M2.2 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-07-28 2026-07-28 20:54:41 UTC | 3.7ml | 28 km WNW of Ivanof Bay, Alaska 55.958°, -159.923° | 1.6 km | 1 | III | - | ✓ Reviewed | USGS → |
A magnitude 3.7 seismic event took place 28 km WNW of Ivanof Bay, Alaska on July 28, 2026 at 20:54 UTC. This very shallow event was close enough to the surface that even modest magnitudes can produce significant local shaking. See the M3.7 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-07-28 2026-07-28 20:52:22 UTC | 3.5ml | 54 km E of Denali National Park, Alaska 63.561°, -150.633° | 0.7 km | 4 | - | - | ✓ Reviewed | USGS → |
On July 28, 2026, worldwide seismic activity registered a magnitude 3.5 earthquake 54 km E of Denali National Park, Alaska at 20:52 UTC. This event falls inside the aftershock decay of a nearby magnitude 5.0 earthquake that occurred about 1 hours earlier. This very shallow event was close enough to the surface that even modest magnitudes can produce significant local shaking. See the M3.5 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-07-28 2026-07-28 20:49:24 UTC | 5.0ml | 52 km E of Denali National Park, Alaska 63.611°, -150.673° | 5.0 km | 164 | V | - | ✓ Reviewed | USGS → |
Seismographs logged a magnitude 5.0 earthquake 52 km E of Denali National Park, Alaska with origin time 20:49 UTC on July 28, 2026. 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 M5.0 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-07-28 2026-07-28 20:44:15 UTC | 2.8ml | 232 km ESE of Attu Station, Alaska 52.086°, 176.376° | 12.5 km | - | - | - | ✓ Reviewed | USGS → |
July 28, 2026 brought a magnitude 2.8 earthquake 232 km ESE of Attu Station, Alaska, logged at 20:44 UTC. Coming 11 hours after a magnitude 3.9 earthquake in the immediate vicinity, it is most likely an aftershock of that larger rupture. See the M2.8 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-07-28 2026-07-28 20:40:45 UTC | 2.3md | 5 km SSW of Indios, Puerto Rico 17.951°, -66.843° | 13.2 km | - | - | - | ✓ Reviewed | USGS → |
This magnitude 2.3 event was detected 5 km SSW of Indios, Puerto Rico on July 28, 2026, with origin time 20:40 UTC. It arrived roughly 3 hours after a larger magnitude 3.5 mainshock in the same 20 km area, placing it within the typical aftershock window. See the M2.3 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-07-28 2026-07-28 20:27:57 UTC | 5.4mww | 211 km SE of Kokopo, Papua New Guinea -5.760°, 153.544° | 10.0 km | 1 | III | green | ✓ Reviewed | USGS → |
This magnitude 5.4 event was detected 211 km SE of Kokopo, Papua New Guinea on July 28, 2026, with origin time 20:27 UTC. The USGS PAGER system assigned a green alert level for this event, signalling no significant casualties or damage expected. The event was offshore. See the M5.4 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-07-28 2026-07-28 20:23:42 UTC | 5.1mb | south of the Fiji Islands -22.184°, 179.564° | 575.1 km | - | - | - | ✓ Reviewed | USGS → |
On July 28, 2026 at 20:23 UTC, a magnitude 5.1 earthquake struck south of the Fiji Islands. This is the deepest earthquake in the current dataset — a deep-focus event. See the M5.1 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-07-28 2026-07-28 20:11:13 UTC | 2.4md | 4 km SW of Indios, Puerto Rico 17.958°, -66.847° | 13.3 km | - | - | - | ✓ Reviewed | USGS → |
July 28, 2026 brought a magnitude 2.4 earthquake 4 km SW of Indios, Puerto Rico, logged at 20:11 UTC. Coming 2 hours after a magnitude 3.5 earthquake in the immediate vicinity, it is most likely an aftershock of that larger rupture. The event was offshore. See the M2.4 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-07-28 2026-07-28 20:05:07 UTC | 2.8ml | 233 km ESE of Attu Station, Alaska 51.909°, 176.261° | 2.4 km | - | - | - | ✓ Reviewed | USGS → |
On July 28, 2026 at 20:05 UTC, a magnitude 2.8 earthquake struck 233 km ESE of Attu Station, Alaska. It arrived roughly 11 hours after a larger magnitude 3.9 mainshock in the same 20 km area, placing it within the typical aftershock window. 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. | ||||||||
2026-07-28 2026-07-28 19:48:54 UTC | 2.5ml | 56 km S of Whites City, New Mexico 31.665°, -104.357° | 6.3 km | - | - | - | ✓ Reviewed | USGS → |
On July 28, 2026, worldwide seismic activity registered a magnitude 2.5 earthquake 56 km S of Whites City, New Mexico at 19:48 UTC. This event falls inside the aftershock decay of a nearby magnitude 3.3 earthquake that occurred about 17 hours earlier. The event was offshore. See the M2.5 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-07-28 2026-07-28 19:44:51 UTC | 2.2ml | 125 km SSE of Akutan, Alaska 53.190°, -164.745° | 2.9 km | - | - | - | ✓ Reviewed | USGS → |
July 28, 2026 brought a magnitude 2.2 earthquake 125 km SSE of Akutan, Alaska, logged at 19:44 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. This very shallow event was close enough to the surface that even modest magnitudes can produce significant local shaking. See the M2.2 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-07-28 2026-07-28 19:40:45 UTC | 2.5ml | 73 km ENE of Ugashik, Alaska 57.789°, -156.282° | 131.4 km | - | - | - | ✓ Reviewed | USGS → |
At 19:40 UTC on July 28, 2026, a magnitude 2.5 tremor occurred 73 km ENE of Ugashik, Alaska. See the M2.5 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-07-28 2026-07-28 19:38:00 UTC | 2.4ml | 31 km ESE of Susitna North, Alaska 62.046°, -149.290° | 22.4 km | 1 | - | - | ✓ Reviewed | USGS → |
At 19:38 UTC on July 28, 2026, a magnitude 2.4 tremor occurred 31 km ESE of Susitna North, Alaska. See the M2.4 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-07-28 2026-07-28 19:28:08 UTC | 5.0mb | 82 km SW of Kirakira, Solomon Islands -10.926°, 161.331° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
On July 28, 2026, worldwide seismic activity registered a magnitude 5.0 earthquake 82 km SW of Kirakira, Solomon Islands at 19:28 UTC. The event was offshore. See the M5.0 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 28, 2026. Data includes all events of magnitude 1.0 or greater. Past earthquake data is considered final after review by USGS seismologists.