Earthquakes on October 4, 2020
317
EARTHQUAKES on October 4, 2020
24-hour UTC period · USGS data
121 km deep · 49 people felt it
Elevated activitycompared to daily average (~250/day)
Magnitude Breakdown
M5.0+
3
M4.0–4.9
37
M3.0–3.9
9
M2.0–2.9
53
M1.0–1.9
215
Activity Summary
317
Total earthquakes
~250
Daily average
Elevated
Activity level
3
M5.0+ events
Significant Earthquakes (M4.5+)
5.6
14 km WSW of Tingloy, Philippines
18:16 UTC · 121.0 km deep
Felt by 49
5.1
190 km SSW of Severo-Kuril’sk, Russia
09:17 UTC · 48.5 km deep
5.1
190 km NW of Sola, Vanuatu
03:35 UTC · 93.5 km deep
04.9
126 km E of Pangai, Tonga
23:20 UTC · 10.0 km deep
4.9
107 km SE of Lata, Solomon Islands
17:36 UTC · 58.8 km deep
4.9
121 km SSW of Lotofag?, Samoa
02:18 UTC · 10.0 km deep
4.8
31 km N of Petit Valley, Trinidad and Tobago
19:12 UTC · 55.2 km deep
Felt by 22
4.8
193 km WSW of Adak, Alaska
07:11 UTC · 40.2 km deep
Earthquake Map — October 4, 2020
All Earthquakes — October 4, 2020
Showing 30 of 102 (filtered from 317)
(Filtered to M2.0+. Change the magnitude filter to see smaller events.)
| Time ↓ | Mag ↕ | Location ↕ | Depth ↕ | Felt ↕ | MMI | Alert | Status | Details |
|---|---|---|---|---|---|---|---|---|
2020-10-04 2020-10-04 23:20:55 UTC | 4.9mb | 126 km E of Pangai, Tonga -20.017°, -173.169° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
On October 4, 2020, worldwide seismic activity registered a magnitude 4.9 earthquake 126 km E of Pangai, Tonga at 23:20 UTC. The event was offshore. See the M4.9 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2020-10-04 2020-10-04 23:19:01 UTC | 4.4mb | 104 km SE of King Cove, Alaska 54.306°, -161.356° | 5.6 km | - | - | - | ✓ Reviewed | USGS → |
Reports of a magnitude 4.4 earthquake 104 km SE of King Cove, Alaska came in on October 4, 2020 at 23:19 UTC. The event was offshore. See the M4.4 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2020-10-04 2020-10-04 23:07:56 UTC | 3.0ml | 44 km SE of Adak, Alaska 51.650°, -176.101° | 59.2 km | - | - | - | ✓ Reviewed | USGS → |
Reports of a magnitude 3.0 earthquake 44 km SE of Adak, Alaska came in on October 4, 2020 at 23:07 UTC. The event was offshore. See the M3.0 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2020-10-04 2020-10-04 22:49:15 UTC | 4.1mb | 222 km SW of Haveluloto, Tonga -22.386°, -176.909° | 164.6 km | - | - | - | ✓ Reviewed | USGS → |
At 22:49 UTC on October 4, 2020, a magnitude 4.1 tremor occurred 222 km SW of Haveluloto, Tonga. The event was offshore. See the M4.1 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2020-10-04 2020-10-04 22:48:00 UTC | 2.3ml | 43 km E of Pedro Bay, Alaska 59.802°, -153.336° | 117.0 km | - | - | - | ✓ Reviewed | USGS → |
Seismographs logged a magnitude 2.3 earthquake 43 km E of Pedro Bay, Alaska with origin time 22:48 UTC on October 4, 2020. The event was offshore. See the M2.3 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2020-10-04 2020-10-04 22:39:55 UTC | 2.2ml | 227 km SSE of Unalaska, Alaska 52.058°, -164.977° | 7.1 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 2.2 earthquake was recorded 227 km SSE of Unalaska, Alaska on October 4, 2020 at 22:39 UTC. See the M2.2 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2020-10-04 2020-10-04 22:38:03 UTC | 4.1mb | 98 km S of Ierápetra, Greece 34.132°, 25.877° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
The USGS recorded this magnitude 4.1 earthquake 98 km S of Ierápetra, Greece at 22:38 UTC on October 4, 2020. The event was offshore. See the M4.1 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2020-10-04 2020-10-04 22:33:24 UTC | 4.1mb | 24 km SSW of Karaton, Kazakhstan 46.241°, 53.342° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
This magnitude 4.1 event was detected 24 km SSW of Karaton, Kazakhstan on October 4, 2020, with origin time 22:33 UTC. See the M4.1 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2020-10-04 2020-10-04 22:27:35 UTC | 2.1ml | 192 km S of Sand Point, Alaska 53.635°, -159.937° | 25.6 km | - | - | - | ✓ Reviewed | USGS → |
October 4, 2020 brought a magnitude 2.1 earthquake 192 km S of Sand Point, Alaska, logged at 22:27 UTC. The event was offshore. See the M2.1 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2020-10-04 2020-10-04 22:25:54 UTC | 4.4mb | Macquarie Island region -53.274°, 158.715° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 4.4 seismic event took place in the Macquarie Island region on October 4, 2020 at 22:25 UTC. See the M4.4 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2020-10-04 2020-10-04 22:20:20 UTC | 4.1mb | 96 km S of Pýrgos, Greece 34.149°, 24.962° | 18.7 km | - | - | - | ✓ Reviewed | USGS → |
Reports of a magnitude 4.1 earthquake 96 km S of Pýrgos, Greece came in on October 4, 2020 at 22:20 UTC. The event was offshore. See the M4.1 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2020-10-04 2020-10-04 22:19:15 UTC | 4.6mb | 237 km SE of Sarangani, Philippines 3.708°, 126.783° | 35.1 km | - | - | - | ✓ Reviewed | USGS → |
On October 4, 2020 at 22:19 UTC, a magnitude 4.6 earthquake struck 237 km SE of Sarangani, Philippines. The event was offshore. See the M4.6 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2020-10-04 2020-10-04 22:19:02 UTC | 4.5mb | 70 km SE of Obihiro, Japan 42.431°, 143.766° | 60.0 km | - | - | - | ✓ Reviewed | USGS → |
At 22:19 UTC on October 4, 2020, a magnitude 4.5 tremor occurred 70 km SE of Obihiro, Japan. The event was offshore. See the M4.5 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2020-10-04 2020-10-04 21:46:23 UTC | 4.3mb | south of the Fiji Islands -23.612°, 179.975° | 532.4 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 4.3 seismic event took place south of the Fiji Islands on October 4, 2020 at 21:46 UTC. 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. | ||||||||
2020-10-04 2020-10-04 21:44:57 UTC | 2.5md | 4 km SSW of Indios, Puerto Rico 17.958°, -66.839° | 11.0 km | - | - | - | ✓ Reviewed | USGS → |
Reports of a magnitude 2.5 earthquake 4 km SSW of Indios, Puerto Rico came in on October 4, 2020 at 21:44 UTC. This event falls inside the aftershock decay of a nearby magnitude 3.1 earthquake that occurred about 2 hours earlier. See the M2.5 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2020-10-04 2020-10-04 21:32:02 UTC | 4.6mb | 79 km S of Orocué, Colombia 4.070°, -71.351° | 16.7 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 4.6 earthquake was recorded 79 km S of Orocué, Colombia on October 4, 2020 at 21:32 UTC. The event was offshore. See the M4.6 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2020-10-04 2020-10-04 21:29:20 UTC | 2.2ml | 41 km NW of Stanley, Idaho 44.522°, -115.245° | 3.3 km | - | - | - | ✓ Reviewed | USGS → |
October 4, 2020 brought a magnitude 2.2 earthquake 41 km NW of Stanley, Idaho, logged at 21:29 UTC. This event falls inside the aftershock decay of a nearby magnitude 2.8 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. | ||||||||
2020-10-04 2020-10-04 21:19:39 UTC | 2.2ml | 46 km SW of Cantwell, Alaska 63.134°, -149.677° | 83.6 km | - | - | - | ✓ Reviewed | USGS → |
Seismographs logged a magnitude 2.2 earthquake 46 km SW of Cantwell, Alaska with origin time 21:19 UTC on October 4, 2020. The event was offshore. See the M2.2 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2020-10-04 2020-10-04 20:21:13 UTC | 4.6mb | 25 km E of Moyobamba, Peru -6.005°, -76.748° | 38.1 km | 4 | - | - | ✓ Reviewed | USGS → |
Seismographs logged a magnitude 4.6 earthquake 25 km E of Moyobamba, Peru with origin time 20:21 UTC on October 4, 2020. The event was offshore. See the M4.6 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2020-10-04 2020-10-04 19:36:21 UTC | 2.8ml | 40 km NNW of Stanley, Idaho 44.531°, -115.189° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
Seismographs logged a magnitude 2.8 earthquake 40 km NNW of Stanley, Idaho with origin time 19:36 UTC on October 4, 2020. See the M2.8 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2020-10-04 2020-10-04 19:30:17 UTC | 3.1md | 4 km SSW of Indios, Puerto Rico 17.953°, -66.835° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
The USGS recorded this magnitude 3.1 earthquake 4 km SSW of Indios, Puerto Rico at 19:30 UTC on October 4, 2020. See the M3.1 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2020-10-04 2020-10-04 19:29:42 UTC | 2.7ml | 102 km SE of King Cove, Alaska 54.317°, -161.382° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
October 4, 2020 brought a magnitude 2.7 earthquake 102 km SE of King Cove, Alaska, logged at 19:29 UTC. The event was offshore. See the M2.7 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2020-10-04 2020-10-04 19:12:15 UTC | 4.8mb | 31 km N of Petit Valley, Trinidad and Tobago 10.986°, -61.545° | 55.2 km | 22 | - | - | ✓ Reviewed | USGS → |
This magnitude 4.8 event was detected 31 km N of Petit Valley, Trinidad and Tobago on October 4, 2020, with origin time 19:12 UTC. The event was offshore. See the M4.8 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2020-10-04 2020-10-04 18:38:02 UTC | 2.6md | 5 km SSW of Indios, Puerto Rico 17.950°, -66.837° | 11.0 km | - | - | - | ✓ Reviewed | USGS → |
This magnitude 2.6 event was detected 5 km SSW of Indios, Puerto Rico on October 4, 2020, with origin time 18:38 UTC. It arrived roughly 2 hours after a larger magnitude 3.0 mainshock in the same 20 km area, placing it within the typical aftershock window. See the M2.6 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2020-10-04 2020-10-04 18:33:59 UTC | 2.0ml | 48 km W of Skwentna, Alaska 62.053°, -152.313° | 137.0 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 2.0 seismic event took place 48 km W of Skwentna, Alaska on October 4, 2020 at 18:33 UTC. The event was offshore. See the M2.0 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2020-10-04 2020-10-04 18:27:56 UTC | 4.4mb | 175 km SE of Kokopo, Papua New Guinea -5.327°, 153.514° | 70.1 km | - | - | - | ✓ Reviewed | USGS → |
October 4, 2020 brought a magnitude 4.4 earthquake 175 km SE of Kokopo, Papua New Guinea, logged at 18:27 UTC. The event was offshore. See the M4.4 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2020-10-04 2020-10-04 18:16:53 UTC | 5.6mww | 14 km WSW of Tingloy, Philippines 13.608°, 120.753° | 121.0 km | 49 | IV | green | ✓ Reviewed | USGS → |
On October 4, 2020 at 18:16 UTC, a magnitude 5.6 earthquake struck 14 km WSW of Tingloy, Philippines. The USGS PAGER system assigned a green alert level for this event, signalling no significant casualties or damage expected. It is the largest earthquake currently listed for worldwide seismic activity on October 4, 2020. See the M5.6 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2020-10-04 2020-10-04 17:52:47 UTC | 2.0md | 11km NE of Milpitas, CA 37.500°, -121.826° | 4.7 km | - | - | - | ✓ Reviewed | USGS → |
October 4, 2020 brought a magnitude 2.0 earthquake 11km NE of Milpitas, CA, logged at 17:52 UTC. 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. | ||||||||
2020-10-04 2020-10-04 17:36:57 UTC | 4.9mb | 107 km SE of Lata, Solomon Islands -11.534°, 166.348° | 58.8 km | - | - | - | ✓ Reviewed | USGS → |
At 17:36 UTC on October 4, 2020, a magnitude 4.9 tremor occurred 107 km SE of Lata, Solomon Islands. The event was offshore. See the M4.9 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2020-10-04 2020-10-04 17:23:31 UTC | 2.1ml | 21km ESE of Anza, CA 33.482°, -116.467° | 13.5 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 2.1 seismic event took place 21km ESE of Anza, CA on October 4, 2020 at 17:23 UTC. See the M2.1 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 October 4, 2020. Data includes all events of magnitude 1.0 or greater. Past earthquake data is considered final after review by USGS seismologists.