Earthquakes on February 28, 2026
307
EARTHQUAKES on February 28, 2026
24-hour UTC period · USGS data
52 km deep
Elevated activitycompared to daily average (~250/day)
Magnitude Breakdown
M5.0+
7
M4.0–4.9
32
M3.0–3.9
9
M2.0–2.9
64
M1.0–1.9
195
Activity Summary
307
Total earthquakes
~250
Daily average
Elevated
Activity level
7
M5.0+ events
Geographic Breakdown
By US State
Top Countries (International)
Significant Earthquakes (M4.5+)
5.4
130 km SSW of Kokopo, Papua New Guinea
06:23 UTC · 52.0 km deep
5.3
67 km SE of Sarangani, Philippines
17:22 UTC · 101.3 km deep
Felt by 2
5.3
52 km NNW of Hirara, Japan
05:53 UTC · 10.0 km deep
5.1
66 km NNW of Hirara, Japan
12:56 UTC · 10.0 km deep
5.1
245 km NNE of Palu, Indonesia
06:52 UTC · 67.5 km deep
Felt by 1
5.1
57 km NNW of Hirara, Japan
01:49 UTC · 10.0 km deep
5.0
33 km N of Kusapín, Panama
17:11 UTC · 10.0 km deep
Felt by 34
4.9
50 km NW of Hirara, Japan
21:39 UTC · 10.0 km deep
Earthquake Map — February 28, 2026
All Earthquakes — February 28, 2026
Showing 30 of 112 (filtered from 307)
(Filtered to M2.0+. Change the magnitude filter to see smaller events.)
| Time ↓ | Mag ↕ | Location ↕ | Depth ↕ | Felt ↕ | MMI | Alert | Status | Details |
|---|---|---|---|---|---|---|---|---|
2026-02-28 2026-02-28 23:48:00 UTC | 4.4mb | 129 km SSW of Kokopo, Papua New Guinea -5.425°, 151.822° | 35.0 km | - | - | - | ✓ Reviewed | USGS → |
Reports of a magnitude 4.4 earthquake 129 km SSW of Kokopo, Papua New Guinea came in on February 28, 2026 at 23:48 UTC. Coming 17 hours after a magnitude 5.4 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. | ||||||||
2026-02-28 2026-02-28 23:40:03 UTC | 2.1ml | 75 km NE of Tonopah, Nevada 38.455°, -116.524° | 8.3 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 2.1 seismic event took place 75 km NE of Tonopah, Nevada on February 28, 2026 at 23:40 UTC. Coming 5 hours after a magnitude 3.3 earthquake in the immediate vicinity, it is most likely an aftershock of that larger rupture. The event was offshore. See the M2.1 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-02-28 2026-02-28 23:31:09 UTC | 2.1ml | 5 km S of Fritz Creek, Alaska 59.683°, -151.302° | 49.3 km | - | - | - | ✓ Reviewed | USGS → |
At 23:31 UTC on February 28, 2026, a magnitude 2.1 tremor occurred 5 km S of Fritz Creek, Alaska. The event was offshore. See the M2.1 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-02-28 2026-02-28 23:27:51 UTC | 2.1ml | 136 km SSE of McCarthy, Alaska 60.420°, -141.514° | 0.9 km | - | - | - | ✓ Reviewed | USGS → |
The USGS recorded this magnitude 2.1 earthquake 136 km SSE of McCarthy, Alaska at 23:27 UTC on February 28, 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. | ||||||||
2026-02-28 2026-02-28 23:26:49 UTC | 2.0ml | 73 km NE of Tonopah, Nevada 38.451°, -116.548° | 10.8 km | - | - | - | ✓ Reviewed | USGS → |
Seismographs logged a magnitude 2.0 earthquake 73 km NE of Tonopah, Nevada with origin time 23:26 UTC on February 28, 2026. It arrived roughly 5 hours after a larger magnitude 3.3 mainshock in the same 20 km area, placing it within the typical aftershock window. The event was offshore. See the M2.0 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-02-28 2026-02-28 23:05:32 UTC | 4.3mb | 35 km NW of Albardón, Argentina -31.216°, -68.798° | 125.7 km | - | - | - | ✓ Reviewed | USGS → |
The USGS recorded this magnitude 4.3 earthquake 35 km NW of Albardón, Argentina at 23:05 UTC on February 28, 2026. The event was offshore. See the M4.3 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-02-28 2026-02-28 23:01:31 UTC | 2.0ml | 23 km W of Garden City, Texas 31.896°, -101.729° | 8.9 km | - | - | - | ✓ Reviewed | USGS → |
On February 28, 2026, worldwide seismic activity registered a magnitude 2.0 earthquake 23 km W of Garden City, Texas at 23:01 UTC. The event was offshore. See the M2.0 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-02-28 2026-02-28 22:36:30 UTC | 2.6ml | 74 km NE of Tonopah, Nevada 38.452°, -116.540° | 10.2 km | - | - | - | ✓ Reviewed | USGS → |
This magnitude 2.6 event was detected 74 km NE of Tonopah, Nevada on February 28, 2026, with origin time 22:36 UTC. Coming 4 hours after a magnitude 3.3 earthquake in the immediate vicinity, it is most likely an aftershock of that larger rupture. The event was offshore. See the M2.6 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-02-28 2026-02-28 22:06:06 UTC | 2.6ml | 39 km NNW of Valdez, Alaska 61.463°, -146.597° | 14.3 km | 1 | - | - | ✓ Reviewed | USGS → |
Reports of a magnitude 2.6 earthquake 39 km NNW of Valdez, Alaska came in on February 28, 2026 at 22:06 UTC. See the M2.6 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-02-28 2026-02-28 21:52:48 UTC | 2.0ml | 30 km ENE of Susitna North, Alaska 62.224°, -149.277° | 28.5 km | - | - | - | ✓ Reviewed | USGS → |
At 21:52 UTC on February 28, 2026, a magnitude 2.0 tremor occurred 30 km ENE of Susitna North, Alaska. See the M2.0 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-02-28 2026-02-28 21:41:56 UTC | 4.8mww | 46 km NW of Hirara, Japan 25.134°, 125.022° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 4.8 seismic event took place 46 km NW of Hirara, Japan on February 28, 2026 at 21:41 UTC. Coming 16 hours after a magnitude 5.3 earthquake in the immediate vicinity, it is most likely an aftershock of that larger rupture. The event was offshore. See the M4.8 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-02-28 2026-02-28 21:39:28 UTC | 4.9mb | 50 km NW of Hirara, Japan 25.161°, 124.995° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
Reports of a magnitude 4.9 earthquake 50 km NW of Hirara, Japan came in on February 28, 2026 at 21:39 UTC. This event falls inside the aftershock decay of a nearby magnitude 5.3 earthquake that occurred about 16 hours earlier. The event was offshore. See the M4.9 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-02-28 2026-02-28 21:31:22 UTC | 2.4ml | 7 km ESE of Ratliff City, Oklahoma 34.412°, -97.439° | 6.2 km | - | - | - | ✓ Reviewed | USGS → |
This magnitude 2.4 event was detected 7 km ESE of Ratliff City, Oklahoma on February 28, 2026, with origin time 21:31 UTC. This event falls inside the aftershock decay of a nearby magnitude 2.5 earthquake that occurred about 17 hours earlier. See the M2.4 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-02-28 2026-02-28 21:13:02 UTC | 2.4ml | 10 km SE of Tyonek, Alaska 60.996°, -151.004° | 55.1 km | 1 | - | - | ✓ Reviewed | USGS → |
Reports of a magnitude 2.4 earthquake 10 km SE of Tyonek, Alaska came in on February 28, 2026 at 21:13 UTC. The event was offshore. See the M2.4 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-02-28 2026-02-28 21:07:38 UTC | 3.0ml | 72 km NE of Tonopah, Nevada 38.453°, -116.560° | 10.5 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 3.0 seismic event took place 72 km NE of Tonopah, Nevada on February 28, 2026 at 21:07 UTC. It arrived roughly 3 hours after a larger magnitude 3.3 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. | ||||||||
2026-02-28 2026-02-28 21:03:07 UTC | 2.0ml | 55 km SW of Cantwell, Alaska 63.109°, -149.869° | 83.8 km | - | - | - | ✓ Reviewed | USGS → |
The USGS recorded this magnitude 2.0 earthquake 55 km SW of Cantwell, Alaska at 21:03 UTC on February 28, 2026. The event was offshore. See the M2.0 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-02-28 2026-02-28 20:55:46 UTC | 2.2ml | 23 km NE of Stevens Village, Alaska 66.132°, -148.686° | 15.0 km | - | - | - | ✓ Reviewed | USGS → |
At 20:55 UTC on February 28, 2026, a magnitude 2.2 tremor occurred 23 km NE of Stevens Village, Alaska. The event was offshore. See the M2.2 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-02-28 2026-02-28 20:45:07 UTC | 2.2ml | 158 km ESE of McCarthy, Alaska 61.149°, -140.024° | 1.4 km | - | - | - | ✓ Reviewed | USGS → |
The USGS recorded this magnitude 2.2 earthquake 158 km ESE of McCarthy, Alaska at 20:45 UTC on February 28, 2026. This event falls inside the aftershock decay of a nearby magnitude 3.4 earthquake that occurred about 2 hours earlier. 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. | ||||||||
2026-02-28 2026-02-28 19:55:55 UTC | 4.4mb | 42 km E of Bhadarwāh, India 32.974°, 76.169° | 10.0 km | 1 | - | - | ✓ Reviewed | USGS → |
A magnitude 4.4 seismic event took place 42 km E of Bhadarwāh, India on February 28, 2026 at 19:55 UTC. The event was offshore. See the M4.4 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-02-28 2026-02-28 19:41:06 UTC | 2.0md | 10 km S of Rio Dell, CA 40.413°, -124.093° | 21.3 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 2.0 earthquake was recorded 10 km S of Rio Dell, CA on February 28, 2026 at 19:41 UTC. The event was offshore. See the M2.0 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-02-28 2026-02-28 19:32:46 UTC | 2.4ml | 20 km NNE of Indio, CA 33.897°, -116.170° | 4.3 km | - | - | - | ✓ Reviewed | USGS → |
Reports of a magnitude 2.4 earthquake 20 km NNE of Indio, CA came in on February 28, 2026 at 19:32 UTC. 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. | ||||||||
2026-02-28 2026-02-28 19:31:03 UTC | 2.8ml | 92 km SW of Nikolski, Alaska 52.335°, -169.810° | 7.8 km | - | - | - | ✓ Reviewed | USGS → |
On February 28, 2026 at 19:31 UTC, a magnitude 2.8 earthquake struck 92 km SW of Nikolski, Alaska. Coming 19 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 M2.8 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-02-28 2026-02-28 19:16:00 UTC | 2.4ml | 112 km ENE of Ouzinkie, Alaska 58.364°, -150.776° | 20.0 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 2.4 seismic event took place 112 km ENE of Ouzinkie, Alaska on February 28, 2026 at 19:16 UTC. See the M2.4 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-02-28 2026-02-28 19:15:23 UTC | 2.4ml | 117 km SE of Perryville, Alaska 55.121°, -157.910° | 5.8 km | - | - | - | ✓ Reviewed | USGS → |
February 28, 2026 brought a magnitude 2.4 earthquake 117 km SE of Perryville, Alaska, logged at 19:15 UTC. The event was offshore. See the M2.4 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-02-28 2026-02-28 19:11:02 UTC | 2.4ml | 61 km ESE of Sand Point, Alaska 55.120°, -159.616° | 20.0 km | - | - | - | ✓ Reviewed | USGS → |
On February 28, 2026 at 19:11 UTC, a magnitude 2.4 earthquake struck 61 km ESE of Sand Point, Alaska. See the M2.4 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-02-28 2026-02-28 19:06:46 UTC | 2.5ml | 157 km ESE of McCarthy, Alaska 61.156°, -140.037° | 4.1 km | - | - | - | ✓ Reviewed | USGS → |
Seismographs logged a magnitude 2.5 earthquake 157 km ESE of McCarthy, Alaska with origin time 19:06 UTC on February 28, 2026. Coming 1 hours after a magnitude 3.4 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 M2.5 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-02-28 2026-02-28 19:05:37 UTC | 2.7ml | 155 km E of McCarthy, Alaska 61.200°, -140.051° | 3.8 km | - | - | - | ✓ Reviewed | USGS → |
On February 28, 2026, worldwide seismic activity registered a magnitude 2.7 earthquake 155 km E of McCarthy, Alaska at 19:05 UTC. Coming 1 hours after a magnitude 3.4 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 M2.7 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-02-28 2026-02-28 19:03:06 UTC | 3.4ml | 157 km ESE of McCarthy, Alaska 61.169°, -140.037° | 5.0 km | - | III | - | ✓ Reviewed | USGS → |
On February 28, 2026, worldwide seismic activity registered a magnitude 3.4 earthquake 157 km ESE of McCarthy, Alaska at 19:03 UTC. In the 72 hours after this event, the USGS recorded 6 smaller earthquakes within 20 km, consistent with an ongoing aftershock sequence rooted here. See the M3.4 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-02-28 2026-02-28 18:41:33 UTC | 2.5ml | 65 km SE of Unalaska, Alaska 53.467°, -165.818° | 30.6 km | - | - | - | ✓ Reviewed | USGS → |
On February 28, 2026, worldwide seismic activity registered a magnitude 2.5 earthquake 65 km SE of Unalaska, Alaska at 18:41 UTC. The event was offshore. See the M2.5 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-02-28 2026-02-28 18:40:18 UTC | 2.7md | 74 km WNW of Petrolia, CA 40.455°, -125.143° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
At 18:40 UTC on February 28, 2026, a magnitude 2.7 tremor occurred 74 km WNW of Petrolia, CA. See the M2.7 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 February 28, 2026. Data includes all events of magnitude 1.0 or greater. Past earthquake data is considered final after review by USGS seismologists.