Earthquakes on September 17, 2021
300
EARTHQUAKES on September 17, 2021
24-hour UTC period · USGS data
LARGEST: M5.8 — 48 km NNW of Sola, Vanuatu
8 km deep · 4 people felt it
Normal activitycompared to daily average (~250/day)
Magnitude Breakdown
M5.0+
6
M4.0–4.9
38
M3.0–3.9
14
M2.0–2.9
57
M1.0–1.9
185
Activity Summary
300
Total earthquakes
~250
Daily average
Normal
Activity level
6
M5.0+ events
Geographic Breakdown
Top Countries (International)
Significant Earthquakes (M4.5+)
5.8
48 km NNW of Sola, Vanuatu
10:28 UTC · 8.0 km deep
Felt by 4
5.4
Kermadec Islands region
16:50 UTC · 10.0 km deep
5.3
81 km SSE of Kirakira, Solomon Islands
18:44 UTC · 10.0 km deep
Felt by 2
5.1
50 km NNW of Sola, Vanuatu
10:48 UTC · 10.0 km deep
5.0
Kuril Islands
19:36 UTC · 88.3 km deep
5.0
110 km SSE of Kirakira, Solomon Islands
00:04 UTC · 10.0 km deep
Felt by 3
4.9
57 km NW of Murghob, Tajikistan
22:06 UTC · 110.9 km deep
4.8
103 km ESE of Sarangani, Philippines
12:43 UTC · 93.5 km deep
Earthquake Map — September 17, 2021
All Earthquakes — September 17, 2021
Showing 30 of 115 (filtered from 300)
(Filtered to M2.0+. Change the magnitude filter to see smaller events.)
| Time ↓ | Mag ↕ | Location ↕ | Depth ↕ | Felt ↕ | MMI | Alert | Status | Details |
|---|---|---|---|---|---|---|---|---|
2021-09-17 2021-09-17 23:45:30 UTC | 4.1mb | 20 km E of Pamukkale, Turkey 37.930°, 29.348° | 10.0 km | 2 | - | - | ✓ Reviewed | USGS → |
On September 17, 2021 at 23:45 UTC, a magnitude 4.1 earthquake struck 20 km E of Pamukkale, Turkey. The event was offshore. See the M4.1 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-09-17 2021-09-17 23:33:19 UTC | 3.1ml | 8 km NW of Harding-Birch Lakes, Alaska 64.426°, -146.727° | 8.3 km | 5 | - | - | ✓ Reviewed | USGS → |
Seismographs logged a magnitude 3.1 earthquake 8 km NW of Harding-Birch Lakes, Alaska with origin time 23:33 UTC on September 17, 2021. The event was offshore. See the M3.1 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-09-17 2021-09-17 23:22:21 UTC | 2.0md | 7 km ENE of P?hala, Hawaii 19.219°, -155.407° | 34.1 km | - | - | - | Auto | USGS → |
The USGS recorded this magnitude 2.0 earthquake 7 km ENE of P?hala, Hawaii at 23:22 UTC on September 17, 2021. It arrived roughly 17 hours after a larger magnitude 3.1 mainshock in the same 20 km area, placing it within the typical aftershock window. See the M2.0 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-09-17 2021-09-17 23:15:26 UTC | 3.2ml | 238 km S of Sand Point, Alaska 53.200°, -160.164° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
Reports of a magnitude 3.2 earthquake 238 km S of Sand Point, Alaska came in on September 17, 2021 at 23:15 UTC. The event was offshore. See the M3.2 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-09-17 2021-09-17 23:14:36 UTC | 2.0md | 8 km ENE of P?hala, Hawaii 19.237°, -155.409° | 32.7 km | - | - | - | Auto | USGS → |
Reports of a magnitude 2.0 earthquake 8 km ENE of P?hala, Hawaii came in on September 17, 2021 at 23:14 UTC. Coming 17 hours after a magnitude 3.1 earthquake in the immediate vicinity, it is most likely an aftershock of that larger rupture. See the M2.0 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-09-17 2021-09-17 23:06:56 UTC | 2.9ml | 32 km SE of Mina, Nevada 38.155°, -117.891° | 8.0 km | 1 | - | - | ✓ Reviewed | USGS → |
A magnitude 2.9 seismic event took place 32 km SE of Mina, Nevada on September 17, 2021 at 23:06 UTC. The event was offshore. See the M2.9 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-09-17 2021-09-17 22:22:53 UTC | 4.2mb | 62 km NW of Murghob, Tajikistan 38.546°, 73.439° | 110.2 km | - | - | - | ✓ Reviewed | USGS → |
The USGS recorded this magnitude 4.2 earthquake 62 km NW of Murghob, Tajikistan at 22:22 UTC on September 17, 2021. Coming 1 hours after a magnitude 4.9 earthquake in the immediate vicinity, it is most likely an aftershock of that larger rupture. The event was offshore. See the M4.2 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-09-17 2021-09-17 22:18:45 UTC | 4.4mb | Kermadec Islands region -28.831°, -178.150° | 199.3 km | - | - | - | ✓ Reviewed | USGS → |
At 22:18 UTC on September 17, 2021, a magnitude 4.4 tremor occurred in the Kermadec Islands region. See the M4.4 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-09-17 2021-09-17 22:06:44 UTC | 4.9mb | 57 km NW of Murghob, Tajikistan 38.497°, 73.451° | 110.9 km | - | - | - | ✓ Reviewed | USGS → |
This magnitude 4.9 event was detected 57 km NW of Murghob, Tajikistan on September 17, 2021, with origin time 22:06 UTC. The event was offshore. See the M4.9 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-09-17 2021-09-17 22:06:32 UTC | 2.1ml | 11 km SSW of Leilani Estates, Hawaii 19.382°, -154.975° | 5.0 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 2.1 earthquake was recorded 11 km SSW of Leilani Estates, Hawaii on September 17, 2021 at 22:06 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. | ||||||||
2021-09-17 2021-09-17 22:04:20 UTC | 3.1ml | 42 km NE of Nelson Lagoon, Alaska 56.231°, -160.663° | 179.9 km | - | - | - | ✓ Reviewed | USGS → |
On September 17, 2021, worldwide seismic activity registered a magnitude 3.1 earthquake 42 km NE of Nelson Lagoon, Alaska at 22:04 UTC. The event was offshore. See the M3.1 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-09-17 2021-09-17 21:45:54 UTC | 2.9ml | 9 km ENE of P?hala, Hawaii 19.233°, -155.394° | 31.7 km | - | - | - | ✓ Reviewed | USGS → |
September 17, 2021 brought a magnitude 2.9 earthquake 9 km ENE of P?hala, Hawaii, logged at 21:45 UTC. Coming 15 hours after a magnitude 3.1 earthquake in the immediate vicinity, it is most likely an aftershock of that larger rupture. See the M2.9 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-09-17 2021-09-17 21:40:32 UTC | 3.2ml | 24 km SSW of Adak, Alaska 51.656°, -176.714° | 77.2 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 3.2 seismic event took place 24 km SSW of Adak, Alaska on September 17, 2021 at 21:40 UTC. See the M3.2 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-09-17 2021-09-17 21:36:38 UTC | 4.2mb | 247 km E of Levuka, Fiji -17.971°, -178.345° | 540.9 km | - | - | - | ✓ Reviewed | USGS → |
This magnitude 4.2 event was detected 247 km E of Levuka, Fiji on September 17, 2021, with origin time 21:36 UTC. 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. | ||||||||
2021-09-17 2021-09-17 21:27:55 UTC | 2.4ml | 62 km SSW of Akhiok, Alaska 56.402°, -154.433° | 45.2 km | - | - | - | ✓ Reviewed | USGS → |
The USGS recorded this magnitude 2.4 earthquake 62 km SSW of Akhiok, Alaska at 21:27 UTC on September 17, 2021. See the M2.4 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-09-17 2021-09-17 21:07:28 UTC | 2.1ml | western Texas 32.409°, -101.639° | 10.1 km | - | - | - | ✓ Reviewed | USGS → |
At 21:07 UTC on September 17, 2021, a magnitude 2.1 tremor occurred near western Texas. See the M2.1 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-09-17 2021-09-17 20:21:07 UTC | 4.4mb | 49 km SE of Ishinomaki, Japan 38.167°, 141.774° | 45.5 km | - | - | - | ✓ Reviewed | USGS → |
The USGS recorded this magnitude 4.4 earthquake 49 km SE of Ishinomaki, Japan at 20:21 UTC on September 17, 2021. The event was offshore. See the M4.4 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-09-17 2021-09-17 20:09:42 UTC | 2.3ml | 5km NE of Wildomar, CA 33.634°, -117.241° | 14.4 km | 7 | - | - | ✓ Reviewed | USGS → |
Seismographs logged a magnitude 2.3 earthquake 5km NE of Wildomar, CA with origin time 20:09 UTC on September 17, 2021. The event was offshore. See the M2.3 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-09-17 2021-09-17 20:05:16 UTC | 4.6mb | Mid-Indian Ridge -18.174°, 69.746° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
Seismographs logged a magnitude 4.6 earthquake near Mid-Indian Ridge with origin time 20:05 UTC on September 17, 2021. See the M4.6 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-09-17 2021-09-17 19:43:05 UTC | 2.5ml | 43 km NW of Atka, Alaska 52.456°, -174.671° | 216.1 km | - | - | - | ✓ Reviewed | USGS → |
September 17, 2021 brought a magnitude 2.5 earthquake 43 km NW of Atka, Alaska, logged at 19:43 UTC. The event was offshore. See the M2.5 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-09-17 2021-09-17 19:36:07 UTC | 5.0mb | Kuril Islands 48.246°, 153.898° | 88.3 km | - | - | - | ✓ Reviewed | USGS → |
At 19:36 UTC on September 17, 2021, a magnitude 5.0 tremor occurred near Kuril Islands. See the M5.0 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-09-17 2021-09-17 19:25:56 UTC | 4.1mb | 137 km SSE of Biak, Indonesia -2.355°, 136.481° | 49.2 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 4.1 earthquake was recorded 137 km SSE of Biak, Indonesia on September 17, 2021 at 19:25 UTC. See the M4.1 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-09-17 2021-09-17 19:21:48 UTC | 4.3mb | 71 km SSE of Kirakira, Solomon Islands -11.069°, 162.113° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
September 17, 2021 brought a magnitude 4.3 earthquake 71 km SSE of Kirakira, Solomon Islands, logged at 19:21 UTC. Coming 1 hours after a magnitude 5.3 earthquake in the immediate vicinity, it is most likely an aftershock of that larger rupture. See the M4.3 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-09-17 2021-09-17 19:12:03 UTC | 4.7mb | 26 km N of Kohlu, Pakistan 30.133°, 69.282° | 30.7 km | 1 | - | - | ✓ Reviewed | USGS → |
A magnitude 4.7 seismic event took place 26 km N of Kohlu, Pakistan on September 17, 2021 at 19:12 UTC. The event was offshore. See the M4.7 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-09-17 2021-09-17 18:49:17 UTC | 2.2ml | 5 km E of P?hala, Hawaii 19.208°, -155.424° | 32.2 km | - | - | - | Auto | USGS → |
On September 17, 2021, worldwide seismic activity registered a magnitude 2.2 earthquake 5 km E of P?hala, Hawaii at 18:49 UTC. Coming 12 hours after a magnitude 3.1 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. | ||||||||
2021-09-17 2021-09-17 18:44:57 UTC | 5.3mww | 81 km SSE of Kirakira, Solomon Islands -11.178°, 162.074° | 10.0 km | 2 | - | - | ✓ Reviewed | USGS → |
Seismographs logged a magnitude 5.3 earthquake 81 km SSE of Kirakira, Solomon Islands with origin time 18:44 UTC on September 17, 2021. See the M5.3 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-09-17 2021-09-17 18:35:37 UTC | 2.5ml | 86 km ENE of Chignik, Alaska 56.530°, -157.067° | 11.8 km | - | - | - | ✓ Reviewed | USGS → |
On September 17, 2021 at 18:35 UTC, a magnitude 2.5 earthquake struck 86 km ENE of Chignik, Alaska. This event falls inside the aftershock decay of a nearby magnitude 3.2 earthquake that occurred about 1 hours earlier. See the M2.5 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-09-17 2021-09-17 18:19:55 UTC | 3.2ml | 99 km ENE of Chignik, Alaska 56.617°, -156.902° | 6.7 km | - | I | - | ✓ Reviewed | USGS → |
September 17, 2021 brought a magnitude 3.2 earthquake 99 km ENE of Chignik, Alaska, logged at 18:19 UTC. See the M3.2 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-09-17 2021-09-17 17:59:06 UTC | 2.0ml | 23 km WNW of Mentone, Texas 31.763°, -103.834° | 6.3 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 2.0 seismic event took place 23 km WNW of Mentone, Texas on September 17, 2021 at 17:59 UTC. See the M2.0 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-09-17 2021-09-17 17:34:30 UTC | 3.0ml | 135 km SSW of Atka, Alaska 51.058°, -174.891° | 14.0 km | - | - | - | ✓ Reviewed | USGS → |
Reports of a magnitude 3.0 earthquake 135 km SSW of Atka, Alaska came in on September 17, 2021 at 17:34 UTC. See the M3.0 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 September 17, 2021. Data includes all events of magnitude 1.0 or greater. Past earthquake data is considered final after review by USGS seismologists.