Reviewed by USGSIndonesia50y ago
M6.5 earthquake 6 km WNW of Seririt, Indonesia
Wednesday, July 14, 1976, 07:13:24 UTC · 8.170°S, 114.888°E
A magnitude 6.5 earthquake struck 6 km WNW of Seririt, Indonesia on Wednesday, July 14, 1976, 07:13:24 UTC, at a depth of 40.0 km (shallow). It is the strongest earthquake within 300 km since an M7.1 on August 11, 1937.
- Magnitude
- 6.5
- Strong · ms
- Depth
- 40 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 earthquakeDashed circle: 100 km aftershock search areaColoured lines: estimated shaking intensity (USGS ShakeMap)
In context
How big was it, and why here?
Energy released
85 kilotons of TNT
That is about 6 times the Hiroshima bomb. It released about 178 times the energy of a magnitude 5.0.
Tectonic setting
327 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
40 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 lists 1 M2.5+ earthquake within 100 km in the following 30 days; the largest was M5.9 on July 14, 1976. Most nearby activity right after a large earthquake is aftershocks, which usually become less frequent over days and weeks.
Regional history
Past M5+ earthquakes within 300 km
USGS lists 39 M5.0+ earthquakes within 300 km before this one (catalog from 1900; older records are less complete). The strongest:
- 7.1205 km NNE of Gili Air, IndonesiaAugust 11, 1937 · 252 km NE of this epicenter
- 6.668 km S of Sumberpucung, IndonesiaSeptember 11, 1916 · 285 km W of this epicenter
- 6.57 km WNW of Ubud, IndonesiaJanuary 20, 1917 · 49 km SE of this epicenter
- 6.5141 km NNE of Singaraja, IndonesiaApril 10, 1934 · 157 km NE of this epicenter
- 6.394 km SSE of Dampit, IndonesiaFebruary 19, 1967 · 234 km SW of this epicenter
- 6.3117 km NNW of Sumenep, IndonesiaJanuary 30, 1968 · 288 km NW of this epicenter
- 6.1191 km N of Gili Air, IndonesiaMarch 26, 1968 · 222 km NE of this epicenter
- 6.0103 km S of Sumberpucung, IndonesiaOctober 20, 1958 · 293 km W of this epicenter
History · NOAA
Deadliest earthquakes in this area
NOAA’s significant-earthquake database lists 13 damaging, deadly or tsunami-generating earthquakes within 300 km of this epicenter since 1700, which together caused about 13,616 recorded deaths. The most severe:
- 1815M7.3
Bali
22 Nov 1815 · 8 km away · intensity IX
11,453 deathstsunami
- 1917M6.6
Bali
20 Jan 1917 · 179 km away · intensity IX
1,500 deathsModerate damage ($1–5M)tsunami
- 1976M6.5
Bali
14 Jul 1976 · 0 km away
573 deaths$195 million damage
- 1967M6.8
Java: Dampit,Gondang,Trenggalek
19 Feb 1967 · 227 km away · intensity IX
54 deathsSevere damage ($5–24M)
- 1857M7.0
Timor Island:: Dilhi, Gera
13 May 1857 · 70 km away
36 deathsModerate damage ($1–5M)tsunami
- 1916M7.3
Java
11 Sep 1916 · 227 km away
Severe damage ($5–24M)
NOAA NCEI Global Significant Earthquake Database. Historical figures are estimates; older records are incomplete.