FIRE-EARTH Report: MTLINT – 081902

• CJ
• IGE
• OCT
• TML

• Report 081902 prepared by FIRE-EARTH Science and affiliated scientists.

Details available via FIRE-EARTH PULSARS.

• All Groups

Latest FIRE-EARTH DIRECTIVES, ALERTS, FORECASTS, BULLETINS and MESSAGES available via FIRE-EARTH PULSARS.

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Strong Quake Strikes Belanting, Indonesia, Fatalities Expected

ER: SHS – In – DHRSWBTY
KMPH – 081902 – 3

M6.9 Strikes near Belanting, Indonesia

Magnitude: 6.9 mww
Location: 8.324°S, 116.626°E [2km S of Belanting, Indonesia]
Depth: 25.6 km
Time: 2018-08-19 14:56:28 (UTC)
Fatalities expected.

Tectonic Summary

The August 19, 2018, 14:56 UTC, M 6.9 earthquake near Belanting, Indonesia, occurred as the result of shallow thrust faulting on or near The Flores Back Arc Thrust. This event occurred 14 days after the August 5, 2018, M6.9 earthquake near Pulau Lombok, Indonesia which killed at least 476 people. Both events have a similar depth and mechanism.

Prior to the August 5, 2018 earthquake two weeks prior to today’s event, there had been six other events of M 6.5 or larger over the previous century. Four of these are likely to have occurred on the back arc thrust system; a M 6.5 in the Bali region to the west of Lombok in July 1976, and three events of M 6.5, M6.5, and M 6.6 in the Sumbawa region to the east of Lombok in November 2007 and November 2009. The Sumbawa earthquakes were associated with several deaths, hundreds of injuries, and hundreds of houses being destroyed. Since the August 5, 2018 earthquake there have been 10 M 5 and greater earthquakes. Four of these have had magnitudes larger than M 6, including an M 6.3 earthquake ~10 hours prior to this August 19, 14:56 UTC earthquake. Both the August 19, 2018 event, and the August 5, 2018 earthquake, were M 6.9. [USGS]

FIRE-EARTH FORECAST

FIRE-EARTH Forecast for the region and nearby seismicity is available via FIRE-EARTH PULSARS.

Jakarta: World’s Fastest-Sinking City

Submitted by a reader

North Jakarta has sunk 2.5m in 10 years, and over 4m in three decades

Jakarta, the Indonesian capital, which is home to more than 10 million people, is also of the world’s fastest-sinking cities.

“It sits on swampy land, the Java Sea lapping against it, and 13 rivers running through it. So it shouldn’t be a surprise that flooding is frequent in Jakarta and, according to experts, it is getting worse. But it’s not just about freak floods, this massive city is literally disappearing into the ground.”

North Jakarta has sunk 2.5m in 10 years, and more than 4m over the past three decades, and is continuing to sink by as much as 25cm a year in some parts, which is more than double the global average for coastal megacities. It is so low that seven of the city’s sewage-choked rivers actually have to flow uphill to reach Jakarta Bay.

It generates more than 20 per cent of Indonesia’s GDP and further subsidence would create an economic nightmare for the country’s 261 million people.

https://www.bbc.co.uk/news/world-asia-44636934
https://www.news.com.au/

Significant Seismicity in Indonesia and Fiji Regions

KMPH – 081902 – 2

Sembalunlawang, Indonesia

Magnitude: 6.3 mww
Location: 8.325°S, 116.577°E [6km NE of Sembalunlawang, Indonesia]
Depth: 7.9 km
Time: 2018-08-19 at 04:10:21.570 (UTC)

Lambasa, Fiji

Magnitude: 6.8 mb
Location: 16.951°S, 178.022°W [282km ESE of Lambasa, Fiji]
Depth: 422.8 km
Time: 2018-08-19 at 04:28:59 (UTC)
[USGS]

Related Links

• M8.2 Deep Focus Quake Strikes Fiji Region

Detailed Information

• Diagnostics available via FIRE-EARTH PULSARS.

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M8.2 Deep Focus Quake Strikes Fiji Region

KMPH – 081902

Powerful Earthquake Strikes Fiji Region

Magnitude: 8.2 mww

Location: 18.178°S, 178.111°W [280km NNE of Ndoi Island, Fiji]
Uncertainty: ±8.1 km
Depth: 563.4 km
Uncertainty: ±3.6 km
Time: 2018-08-19 00:19:37 UTC

Strongest Aftershock so far:
M5.8;  265km N of Ndoi Island, Fiji; depth of 622.2 km; occurred at T + 2hrs

• Diagnostics available via FIRE-EARTH PULSARS.