Reviewed by USGSIndonesia93y ago
M6.5 earthquake 141 km NNE of Singaraja, Indonesia
Tuesday, April 10, 1934, 10:23:02 UTC · 6.938°S, 115.591°E
A magnitude 6.5 earthquake struck 141 km NNE of Singaraja, Indonesia on Tuesday, April 10, 1934, 10:23:02 UTC, at a depth of 20.0 km (shallow). It is the strongest earthquake within 300 km since an M6.5 on January 20, 1917.
- Magnitude
- 6.5
- Strong · mw
- Depth
- 20 km
- Shallow
- Felt reports
- 0
- Did You Feel It?
- Est. shaking
- VII
- Very strong (ShakeMap)
- PAGER alert
- None
- Not issued
- Tsunami
- No flag
- USGS feed
Outlined circle: this earthquakeColoured lines: estimated shaking intensity (USGS ShakeMap)
In context
How big was it, and why here?
Energy released
76 kilotons of TNT
That is about 5 times the Hiroshima bomb. It released about 160 times the energy of a magnitude 5.0.
Tectonic setting
470 km
from the nearest mapped plate boundary, between the Sunda and Australian plates. Earthquakes this far from a boundary happen on faults inside a plate, often less frequently but sometimes strongly.
Depth: shallow
20 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 100 km
USGS has not published any M2.5+ earthquake within 100 km in the 30 days after this event.
Regional history
Past M5+ earthquakes within 300 km
USGS lists 4 M5.0+ earthquakes within 300 km before this one (catalog from 1900; older records are less complete). The strongest:
- 7.0133 km NNE of Pototano, IndonesiaJuly 5, 1911 · 261 km E of this epicenter
- 6.57 km WNW of Ubud, IndonesiaJanuary 20, 1917 · 178 km S of this epicenter
- 5.857 km NNE of Labuan Lombok, IndonesiaMay 8, 1930 · 183 km SE of this epicenter
- 5.739 km E of Pototano, IndonesiaApril 16, 1931 · 293 km SE of this epicenter
History · NOAA
Deadliest earthquakes in this area
NOAA’s significant-earthquake database lists 9 damaging, deadly or tsunami-generating earthquakes within 300 km of this epicenter since 1700, which together caused about 12,989 recorded deaths. The most severe:
- 1815M7.3
Bali
22 Nov 1815 · 150 km away · intensity IX
11,453 deathstsunami
- 1917M6.6
Bali
20 Jan 1917 · 46 km away · intensity IX
1,500 deathsModerate damage ($1–5M)tsunami
- 1857M7.0
Timor Island:: Dilhi, Gera
13 May 1857 · 119 km away
36 deathsModerate damage ($1–5M)tsunami
- 1818M8.5
Sumbawa Island: Bima
8 Nov 1818 · 156 km away
Moderate damage ($1–5M)tsunami
- 1930M6.5
S. Java Sea
19 Jul 1930 · 299 km away
tsunami
- 1843M6.0
Java: Genteng Island
7 Feb 1843 · 178 km away
tsunami
NOAA NCEI Global Significant Earthquake Database. Historical figures are estimates; older records are incomplete.