Reviewed by USGS2y ago
M4.3 earthquake in Banda Sea
Wednesday, November 8, 2023, 14:54:03 UTC · 6.253°S, 129.935°E
A magnitude 4.3 earthquake struck in Banda Sea on Wednesday, November 8, 2023, 14:54:03 UTC, at a depth of 10.0 km (shallow).
- Magnitude
- 4.3
- Light · mb
- Depth
- 10 km
- Shallow
- Felt reports
- 0
- Did You Feel It?
- Est. shaking
- —
- No ShakeMap
- PAGER alert
- None
- Not issued
- Tsunami
- No flag
- USGS feed
Outlined circle: this earthquakeDashed circle: 50 km aftershock search area
In context
How big was it, and why here?
Energy released
43 tons of TNT
That is about 1/354 of the Hiroshima bomb. A magnitude 5.0 releases about 11 times more energy.
Tectonic setting
32 km
from the nearest mapped plate boundary, between the Banda Sea and Timor plates. Earthquakes cluster along boundaries like this one, where plates collide, pull apart or slide past each other.
Depth: shallow
10 km
Shallow earthquakes (under 70 km) produce the strongest surface shaking for their size, so they are the ones most likely to cause damage near the epicenter.
Did You Feel It?
Where it was felt
No “Did You Feel It?” reports have been published for this event yet. If you felt it, you can add your report on the USGS website.
I felt it — report to USGS ↗USGS PAGER estimate
Who was exposed to shaking
USGS publishes PAGER impact estimates for significant earthquakes, usually within an hour. No PAGER estimate is available for this event.
After the main event
Aftershocks within 50 km
USGS lists 68 M2.5+ earthquakes within 50 km in the following 30 days; the largest was M6.1 on November 10, 2023. Most nearby activity right after a large earthquake is aftershocks, which usually become less frequent over days and weeks.
- 4.6Banda Sea2y ago · 26 km W of this epicenter
- 4.4Banda Sea2y ago · 10 km SE of this epicenter
- 4.3Banda Sea2y ago · 6 km N of this epicenter
- 4.6Banda Sea2y ago · 16 km W of this epicenter
- 4.6Banda Sea2y ago · 36 km SW of this epicenter
- 4.6Banda Sea2y ago · 36 km W of this epicenter
- 4.4Banda Sea2y ago · 26 km S of this epicenter
- 4.6Banda Sea2y ago · 43 km W of this epicenter
Regional history
Past M5+ earthquakes within 300 km
USGS lists 1,564 M5.0+ earthquakes within 300 km before this one (catalog from 1900; older records are less complete). The strongest:
- 8.51938 Banda Sea EarthquakeFebruary 1, 1938 · 229 km NE of this epicenter
- 8.11963 Banda Sea EarthquakeNovember 4, 1963 · 86 km SW of this epicenter
- 7.7Banda SeaNovember 2, 1950 · 104 km SW of this epicenter
- 7.6Pulau Pulau Tanimbar, IndonesiaJanuary 9, 2023 · 90 km S of this epicenter
- 7.6196 km S of Ambon, IndonesiaJanuary 27, 2006 · 218 km NW of this epicenter
- 7.5273 km WSW of Tual, IndonesiaJune 3, 1927 · 89 km SE of this epicenter
- 7.3145 km NNE of Lospalos, Timor LesteAugust 30, 1917 · 283 km SW of this epicenter
- 7.3125 km NNE of Lospalos, Timor LesteDecember 29, 2021 · 297 km SW of this epicenter
History · NOAA
Deadliest earthquakes in this area
NOAA’s significant-earthquake database lists 20 damaging, deadly or tsunami-generating earthquakes within 300 km of this epicenter since 1700, which together caused about 70 recorded deaths. The most severe:
- 1852M8.3
Maluku: Bandanaira
25 Nov 1852 · 113 km away · intensity IX
60 deathsSevere damage ($5–24M)tsunami
- 1763
Bandaneira
12 Sep 1763 · 29 km away · intensity X
7 deathsModerate damage ($1–5M)tsunami
- 1711M7.0
Banda Sea
5 Sep 1711 · 271 km away
2 deathsLimited damage (under $1M)tsunami
- 2023M7.6
Banda Sea
9 Jan 2023 · 89 km away · intensity V
1 deathModerate damage ($1–5M)tsunami
- 1710
Bandaneira
6 Mar 1710 · 192 km away · intensity IX
Severe damage ($5–24M)tsunami
- 1938M8.6
New Guinea
1 Feb 1938 · 229 km away · intensity VI
Moderate damage ($1–5M)tsunami
NOAA NCEI Global Significant Earthquake Database. Historical figures are estimates; older records are incomplete.