Earthquakes on July 28, 2026
273
EARTHQUAKES on July 28, 2026
24-hour UTC period · USGS data
8 km deep · 102 people felt it
Normal activitycompared to daily average (~250/day)
Magnitude Breakdown
M5.0+
13
M4.0–4.9
47
M3.0–3.9
22
M2.0–2.9
74
M1.0–1.9
117
Activity Summary
273
Total earthquakes
~250
Daily average
Normal
Activity level
13
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 · 8.0 km deep
Felt by 102
5.9
54 km SW of Brisas Barra de Suchiate, Mexico
05:35 UTC · 13.0 km deep
Felt by 22
5.8
152 km E of Ust’-Kamchatsk Staryy, Russia
04:42 UTC · 10.0 km deep
5.8
193 km NW of Oula Xiuma, China
03:34 UTC · 10.0 km deep
Felt by 1
5.7
193 km NW of Oula Xiuma, China
03:16 UTC · 10.0 km deep
Felt by 1
5.6
15 km SSW of Honmachi, Japan
08:08 UTC · 10.0 km deep
Felt by 3
5.4
207 km WNW of Panguna, Papua New Guinea
20:27 UTC · 10.0 km deep
Felt by 1
5.4
113 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 156 (filtered from 273)
(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 23:54:35 UTC | 4.0mb | 131 km SW of Puerto Madero, Mexico 13.942°, -93.348° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
Reports of a magnitude 4.0 earthquake 131 km SW of Puerto Madero, Mexico came in on July 28, 2026 at 23:54 UTC. The event was offshore. See the M4.0 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-07-28 2026-07-28 23:53:35 UTC | 2.9ml | 182 km S of Nikolski, Alaska 51.325°, -169.300° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
Seismographs logged a magnitude 2.9 earthquake 182 km S of Nikolski, Alaska with origin time 23:53 UTC on July 28, 2026. The event was offshore. See the M2.9 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-07-28 2026-07-28 23:51:44 UTC | 4.8mb | 86 km E of Kokopo, Papua New Guinea -4.395°, 153.042° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
Reports of a magnitude 4.8 earthquake 86 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 → |
The USGS recorded this magnitude 3.6 earthquake 39 km NNW of San Antonio, Puerto Rico at 23:50 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 23:26:00 UTC | 2.1ml | 53 km E of Denali National Park, Alaska 63.596°, -150.660° | 0.4 km | - | - | - | ✓ Reviewed | USGS → |
July 28, 2026 brought a magnitude 2.1 earthquake 53 km E of Denali National Park, Alaska, logged at 23:26 UTC. This event falls inside the aftershock decay of a nearby magnitude 5.0 earthquake that occurred about 3 hours earlier. 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 → |
On July 28, 2026 at 23:19 UTC, a magnitude 2.1 earthquake struck 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 23:02:12 UTC | 4.1mb | 276 km ENE of Lospalos, Timor Leste -7.425°, 129.251° | 71.8 km | - | - | - | ✓ Reviewed | USGS → |
On July 28, 2026, worldwide seismic activity registered a magnitude 4.1 earthquake 276 km ENE of Lospalos, Timor Leste at 23:02 UTC. See the M4.1 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 → |
This magnitude 2.1 event was detected 19 km SE of Pāhala, Hawaii on July 28, 2026, with origin time 22:40 UTC. 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 → |
Seismographs logged a magnitude 2.2 earthquake 8 km NE of Alum Rock, CA with origin time 22:39 UTC on July 28, 2026. 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 → |
July 28, 2026 brought a magnitude 2.0 earthquake 15 km SSE of Pāhala, Hawaii, logged 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 22:18:39 UTC | 3.6mb | 265 km SW of Adak, Alaska 50.109°, -179.173° | 10.0 km | - | III | - | ✓ Reviewed | USGS → |
This magnitude 3.6 event was detected 265 km SW of Adak, Alaska on July 28, 2026, with origin time 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 → |
This magnitude 2.5 event was detected 44 km WSW of Carlsbad, CA on July 28, 2026, with origin time 22:15 UTC. See the M2.5 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-07-28 2026-07-28 22:10:04 UTC | 4.3mb | south of the Fiji Islands -26.186°, 179.308° | 531.9 km | - | - | - | ✓ Reviewed | USGS → |
This magnitude 4.3 event was detected south of the Fiji Islands on July 28, 2026, with origin time 22:10 UTC. It arrived roughly 1 hours after a larger magnitude 4.8 mainshock in the same 20 km area, placing it within the typical aftershock window. This deep-focus earthquake originated far below the brittle crust, deep inside the mantle. See the M4.3 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-07-28 2026-07-28 21:47:26 UTC | 4.8mb | south of the Fiji Islands -26.242°, 179.215° | 538.6 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 4.8 seismic event took place south of the Fiji Islands on July 28, 2026 at 21:47 UTC. This deep-focus earthquake originated far below the brittle crust, deep inside the mantle. See the M4.8 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-07-28 2026-07-28 21:32:36 UTC | 4.8mb | South Sandwich Islands region -58.943°, -23.969° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
July 28, 2026 brought a magnitude 4.8 earthquake in the South Sandwich Islands region, logged 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 → |
Reports of a magnitude 2.1 earthquake 5 km SSW of Indios, Puerto Rico came in on July 28, 2026 at 21:30 UTC. Coming 4 hours after a magnitude 3.5 earthquake in the immediate vicinity, it is most likely an aftershock of that larger rupture. 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 → |
Reports of a magnitude 3.6 earthquake 124 km NNW of The Valley, Anguilla came in on July 28, 2026 at 21:19 UTC. 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 → |
July 28, 2026 brought a magnitude 2.4 earthquake 18 km WNW of Ivanof Bay, Alaska, logged at 21:14 UTC. This event falls inside the aftershock decay of a nearby magnitude 3.7 earthquake that occurred about 1 hours earlier. 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 → |
On July 28, 2026, worldwide seismic activity registered a magnitude 2.2 earthquake 60 km WNW of Elfin Cove, Alaska 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 → |
On July 28, 2026, worldwide seismic activity registered a magnitude 3.7 earthquake 28 km WNW of Ivanof Bay, Alaska 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 | 3 | - | - | ✓ Reviewed | USGS → |
A magnitude 3.5 seismic event took place 54 km E of Denali National Park, Alaska on July 28, 2026 at 20:52 UTC. Coming 1 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 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 → |
A magnitude 5.0 earthquake was recorded 52 km E of Denali National Park, Alaska on July 28, 2026 at 20:49 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 M5.0 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-07-28 2026-07-28 20:44:13 UTC | 2.5ml | 230 km ESE of Attu Station, Alaska 52.073°, 176.338° | 9.7 km | - | - | - | ✓ Reviewed | USGS → |
This magnitude 2.5 event was detected 230 km ESE of Attu Station, Alaska on July 28, 2026, with origin time 20:44 UTC. 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. See the M2.5 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 → |
A magnitude 2.3 earthquake was recorded 5 km SSW of Indios, Puerto Rico on July 28, 2026 at 20:40 UTC. This event falls inside the aftershock decay of a nearby magnitude 3.5 earthquake that occurred about 3 hours earlier. See the M2.3 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-07-28 2026-07-28 20:27:56 UTC | 5.4mww | 207 km WNW of Panguna, Papua New Guinea -5.763°, 153.695° | 10.0 km | 1 | III | green | ✓ Reviewed | USGS → |
This magnitude 5.4 event was detected 207 km WNW of Panguna, 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. 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 | 4.9mb | south of the Fiji Islands -22.271°, 179.614° | 573.9 km | - | - | - | ✓ Reviewed | USGS → |
On July 28, 2026, worldwide seismic activity registered a magnitude 4.9 earthquake south of the Fiji Islands at 20:23 UTC. This is the deepest earthquake in the current dataset — a deep-focus event. See the M4.9 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 → |
At 20:11 UTC on July 28, 2026, a magnitude 2.4 tremor occurred 4 km SW of Indios, Puerto Rico. It arrived roughly 2 hours after a larger magnitude 3.5 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. | ||||||||
2026-07-28 2026-07-28 20:10:32 UTC | 4.7mww | 5 km NNE of Rodotópi, Greece 39.757°, 20.752° | 9.2 km | - | - | - | ✓ Reviewed | USGS → |
Seismographs logged a magnitude 4.7 earthquake 5 km NNE of Rodotópi, Greece with origin time 20:10 UTC on July 28, 2026. See the M4.7 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-07-28 2026-07-28 20:05:08 UTC | 2.8ml | 230 km ESE of Attu Station, Alaska 51.993°, 176.268° | 11.4 km | - | - | - | ✓ Reviewed | USGS → |
This magnitude 2.8 event was detected 230 km ESE of Attu Station, Alaska on July 28, 2026, with origin time 20:05 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 19:50:05 UTC | 4.3mb | 221 km WNW of Panguna, Papua New Guinea -5.922°, 153.523° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
Reports of a magnitude 4.3 earthquake 221 km WNW of Panguna, Papua New Guinea came in on July 28, 2026 at 19:50 UTC. 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 July 28, 2026. Data includes all events of magnitude 1.0 or greater. Past earthquake data is considered final after review by USGS seismologists.