Reviewed by USGSIndonesia116y ago
M7.0 earthquake 133 km NNE of Pototano, Indonesia
Wednesday, July 5, 1911, 18:40:07 UTC · 7.297°S, 117.932°E
A magnitude 7.0 earthquake struck 133 km NNE of Pototano, Indonesia on Wednesday, July 5, 1911, 18:40:07 UTC, at a depth of 305.0 km (deep). No earthquake of this size or larger appears within 300 km in the USGS catalog since 1900.
- Magnitude
- 7.0
- Major · mB
- Depth
- 305 km
- Deep
- Felt reports
- 0
- Did You Feel It?
- Est. shaking
- —
- No ShakeMap
- PAGER alert
- None
- Not issued
- Tsunami
- No flag
- USGS feed
Outlined circle: this earthquake
In context
How big was it, and why here?
Energy released
477 kilotons of TNT
That is about 32 times the Hiroshima bomb. It released about 1,000 times the energy of a magnitude 5.0.
Tectonic setting
289 km
from the nearest mapped plate boundary, between the Banda Sea and Sunda plates. Earthquakes this far from a boundary happen on faults inside a plate, often less frequently but sometimes strongly.
Depth: deep
305 km
Deep earthquakes (over 300 km) happen deep inside subducting plates. They rarely cause damage, but can be felt faintly over very large distances.
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 200 km
USGS has not published any M2.5+ earthquake within 200 km in the 30 days after this event.
Regional history
Past M5+ earthquakes within 300 km
USGS lists no earlier M5.0+ earthquakes within 300 km.
History · NOAA
Deadliest earthquakes in this area
NOAA’s significant-earthquake database lists 8 damaging, deadly or tsunami-generating earthquakes within 300 km of this epicenter since 1700, which together caused about 536 recorded deaths. The most severe:
- 1820M7.5
Sulawesi: Makasar
29 Dec 1820 · 122 km away · intensity X
500 deathsModerate damage ($1–5M)tsunami
- 1857M7.0
Timor Island:: Dilhi, Gera
13 May 1857 · 279 km away
36 deathsModerate damage ($1–5M)tsunami
- 1828
Sulawesi
29 Dec 1828 · 122 km away · intensity IX
Severe damage ($5–24M)tsunami
- 1818M8.5
Sumbawa Island: Bima
8 Nov 1818 · 108 km away
Moderate damage ($1–5M)tsunami
- 1836M7.5
Flores Sea
28 Nov 1836 · 140 km away
Limited damage (under $1M)tsunami
- 1837
Sumbawa Island: Bima
28 Nov 1837 · 148 km away · intensity IX
Limited damage (under $1M)
NOAA NCEI Global Significant Earthquake Database. Historical figures are estimates; older records are incomplete.