Earthquakes on May 28, 2026
227
EARTHQUAKES on May 28, 2026
24-hour UTC period · USGS data
LARGEST: M5.3 — Revilla Gigedo Islands region
10 km deep
Normal activitycompared to daily average (~250/day)
Magnitude Breakdown
M5.0+
2
M4.0–4.9
33
M3.0–3.9
13
M2.0–2.9
50
M1.0–1.9
129
Activity Summary
227
Total earthquakes
~250
Daily average
Normal
Activity level
2
M5.0+ events
Geographic Breakdown
By US State
Top Countries (International)
Significant Earthquakes (M4.5+)
5.3
Revilla Gigedo Islands region
16:18 UTC · 10.0 km deep
5.2
70 km S of Soe, Indonesia
01:46 UTC · 10.0 km deep
4.9
43 km E of Adak, Alaska
00:25 UTC · 64.3 km deep
Felt by 1
4.8
136 km SW of Tual, Indonesia
12:35 UTC · 10.0 km deep
4.7
154 km SW of Merizo Village, Guam
17:57 UTC · 39.2 km deep
4.7
South Sandwich Islands region
15:07 UTC · 89.7 km deep
4.7
120 km WSW of Isangel, Vanuatu
09:41 UTC · 10.0 km deep
4.7
240 km NNW of Qamdo, China
02:37 UTC · 10.0 km deep
Earthquake Map — May 28, 2026
All Earthquakes — May 28, 2026
Showing 30 of 98 (filtered from 227)
(Filtered to M2.0+. Change the magnitude filter to see smaller events.)
| Time ↓ | Mag ↕ | Location ↕ | Depth ↕ | Felt ↕ | MMI | Alert | Status | Details |
|---|---|---|---|---|---|---|---|---|
2026-05-28 2026-05-28 23:32:53 UTC | 4.4mb | 48 km WNW of Macabuboni, Philippines 16.290°, 119.335° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
This magnitude 4.4 event was detected 48 km WNW of Macabuboni, Philippines on May 28, 2026, with origin time 23:32 UTC. This event falls inside the aftershock decay of a nearby magnitude 4.6 earthquake that occurred about 20 hours earlier. See the M4.4 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-05-28 2026-05-28 23:20:27 UTC | 2.1ml | 17 km ESE of Little Lake, CA 35.894°, -117.722° | 8.3 km | - | - | - | ✓ Reviewed | USGS → |
This magnitude 2.1 event was detected 17 km ESE of Little Lake, CA on May 28, 2026, with origin time 23:20 UTC. See the M2.1 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-05-28 2026-05-28 23:08:17 UTC | 2.0ml | 6 km SW of Tumalo, Oregon 44.119°, -121.394° | -1.4 km | - | - | - | ✓ Reviewed | USGS → |
On May 28, 2026 at 23:08 UTC, a magnitude 2.0 earthquake struck 6 km SW of Tumalo, Oregon. This is the shallowest earthquake in the current dataset — a shallow crustal event. See the M2.0 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-05-28 2026-05-28 22:00:13 UTC | 4.3mb | 12 km WSW of Bileća, Bosnia and Herzegovina 42.822°, 18.292° | 10.0 km | 5 | - | - | ✓ Reviewed | USGS → |
Seismographs logged a magnitude 4.3 earthquake 12 km WSW of Bileća, Bosnia and Herzegovina with origin time 22:00 UTC on May 28, 2026. See the M4.3 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-05-28 2026-05-28 21:18:54 UTC | 4.4mb | 53 km WNW of Macabuboni, Philippines 16.333°, 119.298° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
Reports of a magnitude 4.4 earthquake 53 km WNW of Macabuboni, Philippines came in on May 28, 2026 at 21:18 UTC. Coming 18 hours after a magnitude 4.6 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. | ||||||||
2026-05-28 2026-05-28 20:59:12 UTC | 4.6mb | 33 km SSE of Cilacap, Indonesia -8.017°, 109.101° | 83.4 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 4.6 seismic event took place 33 km SSE of Cilacap, Indonesia on May 28, 2026 at 20:59 UTC. See the M4.6 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-05-28 2026-05-28 20:58:55 UTC | 3.1ml | 12 km SSW of Snowville, Utah 41.862°, -112.775° | 3.4 km | 8 | III | - | ✓ Reviewed | USGS → |
The USGS recorded this magnitude 3.1 earthquake 12 km SSW of Snowville, Utah at 20:58 UTC on May 28, 2026. This very shallow event was close enough to the surface that even modest magnitudes can produce significant local shaking. See the M3.1 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-05-28 2026-05-28 20:51:28 UTC | 2.8md | 112 km W of Ferndale, CA 40.653°, -125.588° | 4.8 km | 1 | - | - | ✓ Reviewed | USGS → |
Seismographs logged a magnitude 2.8 earthquake 112 km W of Ferndale, CA with origin time 20:51 UTC on May 28, 2026. 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. | ||||||||
2026-05-28 2026-05-28 20:37:55 UTC | 2.5ml | 87 km SSW of Nikolski, Alaska 52.243°, -169.463° | 22.0 km | - | - | - | ✓ Reviewed | USGS → |
On May 28, 2026, worldwide seismic activity registered a magnitude 2.5 earthquake 87 km SSW of Nikolski, Alaska at 20:37 UTC. See the M2.5 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-05-28 2026-05-28 19:09:03 UTC | 4.1mb | south of the Fiji Islands -24.106°, 179.799° | 531.3 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 4.1 earthquake was recorded south of the Fiji Islands on May 28, 2026 at 19:09 UTC. 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. | ||||||||
2026-05-28 2026-05-28 19:04:40 UTC | 2.5ml | 30 km SSW of Alamo, Nevada 37.121°, -115.327° | 7.1 km | - | - | - | ✓ Reviewed | USGS → |
Seismographs logged a magnitude 2.5 earthquake 30 km SSW of Alamo, Nevada with origin time 19:04 UTC on May 28, 2026. See the M2.5 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-05-28 2026-05-28 18:40:45 UTC | 2.1ml | 96 km NW of Yakutat, Alaska 60.138°, -140.981° | 2.9 km | - | - | - | ✓ Reviewed | USGS → |
Reports of a magnitude 2.1 earthquake 96 km NW of Yakutat, Alaska came in on May 28, 2026 at 18:40 UTC. 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. | ||||||||
2026-05-28 2026-05-28 18:22:37 UTC | 2.3ml | 61 km SW of Nikolski, Alaska 52.633°, -169.624° | 42.7 km | - | - | - | ✓ Reviewed | USGS → |
Reports of a magnitude 2.3 earthquake 61 km SW of Nikolski, Alaska came in on May 28, 2026 at 18:22 UTC. The event was offshore. See the M2.3 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-05-28 2026-05-28 18:17:23 UTC | 2.9ml | 27 km WNW of Whites City, New Mexico 32.290°, -104.633° | 4.0 km | - | - | - | ✓ Reviewed | USGS → |
May 28, 2026 brought a magnitude 2.9 earthquake 27 km WNW of Whites City, New Mexico, logged at 18:17 UTC. This very shallow event was close enough to the surface that even modest magnitudes can produce significant local shaking. See the M2.9 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-05-28 2026-05-28 18:15:03 UTC | 2.8ml | 163 km SW of Nikolski, Alaska 51.809°, -170.400° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
On May 28, 2026, worldwide seismic activity registered a magnitude 2.8 earthquake 163 km SW of Nikolski, Alaska at 18:15 UTC. The event was offshore. See the M2.8 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-05-28 2026-05-28 18:11:09 UTC | 2.8ml | 79 km SSE of Kokhanok, Alaska 58.823°, -154.093° | 113.7 km | - | - | - | ✓ Reviewed | USGS → |
At 18:11 UTC on May 28, 2026, a magnitude 2.8 tremor occurred 79 km SSE of Kokhanok, Alaska. See the M2.8 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-05-28 2026-05-28 18:04:16 UTC | 2.2ml | 17 km WSW of Johannesburg, CA 35.306°, -117.807° | 7.4 km | - | - | - | ✓ Reviewed | USGS → |
On May 28, 2026, worldwide seismic activity registered a magnitude 2.2 earthquake 17 km WSW of Johannesburg, CA at 18:04 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 M2.2 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-05-28 2026-05-28 17:57:19 UTC | 4.7mb | 154 km SW of Merizo Village, Guam 12.441°, 143.516° | 39.2 km | - | - | - | ✓ Reviewed | USGS → |
At 17:57 UTC on May 28, 2026, a magnitude 4.7 tremor occurred 154 km SW of Merizo Village, Guam. The event was offshore. See the M4.7 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-05-28 2026-05-28 17:15:21 UTC | 2.0ml | 14 km SE of Morse, Texas 35.959°, -101.371° | 1.7 km | - | - | - | ✓ Reviewed | USGS → |
At 17:15 UTC on May 28, 2026, a magnitude 2.0 tremor occurred 14 km SE of Morse, Texas. 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. | ||||||||
2026-05-28 2026-05-28 17:11:41 UTC | 4.2mb | 120 km E of Lospalos, Timor Leste -8.592°, 128.090° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
This magnitude 4.2 event was detected 120 km E of Lospalos, Timor Leste on May 28, 2026, with origin time 17:11 UTC. The event was offshore. See the M4.2 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-05-28 2026-05-28 16:18:09 UTC | 5.3mww | Revilla Gigedo Islands region 19.654°, -109.491° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
On May 28, 2026 at 16:18 UTC, a magnitude 5.3 earthquake struck in the Revilla Gigedo Islands region. It is the largest earthquake currently listed for worldwide seismic activity on May 28, 2026. See the M5.3 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-05-28 2026-05-28 16:02:32 UTC | 2.5ml | 5 km SW of Prineville, Oregon 44.259°, -120.878° | -1.3 km | - | - | - | ✓ Reviewed | USGS → |
May 28, 2026 brought a magnitude 2.5 earthquake 5 km SW of Prineville, Oregon, logged at 16:02 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. | ||||||||
2026-05-28 2026-05-28 16:00:56 UTC | 2.3ml | 98 km N of Yakutat, Alaska 60.425°, -139.578° | 3.9 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 2.3 seismic event took place 98 km N of Yakutat, Alaska on May 28, 2026 at 16:00 UTC. It arrived roughly 12 hours after a larger magnitude 2.5 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 M2.3 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-05-28 2026-05-28 15:30:17 UTC | 4.3mb | 44 km WSW of Ovalle, Chile -30.778°, -71.613° | 24.4 km | - | - | - | ✓ Reviewed | USGS → |
On May 28, 2026, worldwide seismic activity registered a magnitude 4.3 earthquake 44 km WSW of Ovalle, Chile at 15:30 UTC. See the M4.3 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-05-28 2026-05-28 15:20:47 UTC | 2.6ml | 140 km WSW of Adak, Alaska 51.373°, -178.493° | 5.8 km | - | - | - | ✓ Reviewed | USGS → |
Reports of a magnitude 2.6 earthquake 140 km WSW of Adak, Alaska came in on May 28, 2026 at 15:20 UTC. See the M2.6 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-05-28 2026-05-28 15:07:49 UTC | 4.7mb | South Sandwich Islands region -56.400°, -26.594° | 89.7 km | - | - | - | ✓ Reviewed | USGS → |
The USGS recorded this magnitude 4.7 earthquake in the South Sandwich Islands region at 15:07 UTC on May 28, 2026. See the M4.7 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-05-28 2026-05-28 14:52:20 UTC | 2.3md | 5 km WNW of The Geysers, CA 38.803°, -122.810° | 1.8 km | - | - | - | Auto | USGS → |
This magnitude 2.3 event was detected 5 km WNW of The Geysers, CA on May 28, 2026, with origin time 14:52 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 M2.3 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-05-28 2026-05-28 14:51:09 UTC | 2.7md | 15 km ENE of Red Bluff, CA 40.243°, -122.080° | 9.5 km | - | - | - | ✓ Reviewed | USGS → |
The USGS recorded this magnitude 2.7 earthquake 15 km ENE of Red Bluff, CA at 14:51 UTC on May 28, 2026. See the M2.7 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-05-28 2026-05-28 14:50:43 UTC | 2.0ml | 16 km NE of Levelock, Alaska 59.234°, -156.675° | 2.9 km | - | - | - | ✓ Reviewed | USGS → |
The USGS recorded this magnitude 2.0 earthquake 16 km NE of Levelock, Alaska at 14:50 UTC on May 28, 2026. 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. | ||||||||
2026-05-28 2026-05-28 14:48:16 UTC | 2.0ml | 21 km SSE of Pāhala, Hawaii 19.038°, -155.364° | 32.6 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 2.0 earthquake was recorded 21 km SSE of Pāhala, Hawaii on May 28, 2026 at 14:48 UTC. See the M2.0 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 May 28, 2026. Data includes all events of magnitude 1.0 or greater. Past earthquake data is considered final after review by USGS seismologists.