1699 Java earthquake
On the morning of January 5, 1699, a violent earthquake rocked the then Dutch East Indies city of Batavia on the island of Java, now known as the Indonesian capital city of Jakarta. Dutch accounts of the event described the earthquake as being "so heavy and strong" and beyond comparable to other known earthquakes.[1] This event was so large that it was felt throughout west Java, and southern Sumatra.
Tectonic setting
The Indonesian islands of Java, Sumatra and Lesser Sunda chain lie along a destructive plate boundary where the Australian Plate meets the Sunda Plate. The plates converge, with the Australian Plate being much denser as it is oceanic lithosphere, subducting beneath the less dense Sunda Plate. Subduction is responsible for the large megathrust earthquakes along the west coast of Sumatra and south coast of Java. It also plays a significant role in the volcanic activity on the islands. However, intraplate earthquakes can also occur as the Australian Plate deforms when it is subducting; faults within the downgoing slab may result in intermediate-depth events that are also considerably large.
Damage and casualties
At least 28 people in Batavia were fatally wounded and 49 stone-constructed structures collapsed as a result of the earthquake. Some 21 homes and 29 barns were also obliterated.[2] Almost every home situated in the city suffered some extent of damage. The earthquake uprooted and toppled many trees, blocking waterways and choking river systems. At Mount Salak, a volcano on the island of Java, the violent tremors triggered landslides and debris masses, blocking rivers and causing floods. The combination of earth and vegetation produced a debris flow that passed through the Ci Liwung river and into Batavia, where it entered the Java Sea.
In the port settlement of Bantam, now Banten, the earthquake destroyed a storage warehouse and caused additional damages. In Lampung, Sumatra, the earthquake threw every home off its foundations.[3] More than 100 people were reported killed in Lampung.[4]
Earthquake
The characteristics of the event is not well determined but most likely a large intermediate-depth earthquake. Other researchers suggest it was a megathrust event with a magnitude of 9.0 Mw along the Sunda megathrust. If it were an intraslab earthquake occurring within the downgoing Australian Plate as it subducts beneath the Sunda Plate along the Sunda megathrust, the estimated moment magnitude (Mw ) would be 7.4 to 8.0, with an epicenter near Batavia, and a focal depth of 100 km.[4] Modelling of the 1699 earthquake scenarios show that an intraslab earthquake of Mw 8.0 provided results consistent with historical documentation of the earthquake. High Mercalli intensity values at IX corresponds to the pattern of damage described by Dutch officials in Java and Sumatra. As Banten Province is situated on pyroclastic deposits and Quaternary sediments, seismic waves were likely amplified, resulting in higher degrees of shaking.[5]: §2.2.1
Simulations of a magnitude 9.0 earthquake only produced shaking assigned at VI to VII which did not match the damage descriptions. Such intensities would only cause moderate damage. Weaker levels of shaking would occur in the mountainous regions, which were insufficient to trigger a landslide.[5] The earthquake was not accompanied by a tsunami, further disproving the megathrust theory for an earthquake of such intensity.[4]
Future hazard
In a simulation model, if an earthquake of similar size occurred in modern times, it would cause about 100,000 deaths.[5]: Chapter 4
See also
References
- ^ Reid, A. (2012), Historical Evidence for Major Tsunamis in the Java Subduction Zone (PDF), ARI Working Paper No. 178, Asia Research Institute, p. 4, retrieved 2017-01-11
- ^ Heriyanto, Devina (2018). "Third earthquake in 2018 in Lebak: Is Jakarta ready for megathrust quake?". Jakarta, Indonesia. The Jakarta Post. Retrieved 19 June 2021.
- ^ Wichmann, Arthur (1918). Die erdbeben des Indischen Archipels bis zum Jahre 1857 [Earthquakes of the Indian Archipelago Until the Year 1857] (in German) (20 ed.). Afdeling Natuurkunde Nederlandse Verhandelingen. p. 193.
- ^ a b c Griffin, Jonathan; Nguyen, Ngoc; Cummins, Phil; Cipta, Athanasius (2019). "Historical Earthquakes of the Eastern Sunda Arc: Source Mechanisms and Intensity-Based Testing of Indonesia's National Seismic Hazard Assessment". Bulletin of the Seismological Society of America. 109 (1). GeoScienceWorld: 43–65. Bibcode:2019BuSSA.109...43G. doi:10.1785/0120180085. S2CID 134096659.
- ^ a b c Nguyen, Ngoc; Griffin, Jonathan; Cipta, Athanasius; Cummins, Phil R. "Indonesia's Historical Earthquakes: Modelled examples for improving the national hazard map". Record. 2015/23. Canberra, Australia: Geoscience Australia. doi:10.11636/Record.2015.023. ISBN 978-1-925124-84-2. ISSN 2201-702X. Retrieved 26 May 2024.
- v
- t
- e
- 1907 Sumatra
- 1909 Kerinci
- 1913 Sulawesi–Mindanao
- 1917 Bali
- 1926 Padang Panjang
- 1931 Southwest Sumatra
- 1933 Sumatra
- 1935 Sumatra
- 1938 Banda Sea
- 1943 Alahan Panjang
- 1943 Central Java
- 1965 Ceram Sea
- 1968 Sulawesi
- 1969 Sulawesi
- 1976 Papua
- 1976 Bali
- 1977 Sumba
- 1979 Yapen
- 1979 Bali
- 1981 Irian Jaya
- 1982 Flores
- 1984 Northern Sumatra
- 1989 Irian Jaya
- 1991 Kalabahi
- 1992 Flores
- 1994 Liwa
- 1994 Java
- 1995 Timor
- 1995 Kerinci
- 1996 Sulawesi
- 1996 Biak
- 1998 North Maluku
- 1999 Sunda Strait
- 2000 Banggai Islands
- 2000 Enggano
- April 2010 Sumatra
- May 2010 Northern Sumatra
- 2010 Papua
- 2010 Mentawai
- 2011 Aceh Singkil Regency
- 2012 Indian Ocean
- 2013 Aceh
- 2016 Mentawai
- 2016 Aceh
- 2017 Java
- 2018 West Java
- July 2018 Lombok
- 5 August 2018 Lombok
- 19 August 2018 Lombok
- 2018 Sulawesi
- 2018 East Java
- 2019 Lombok
- 2019 North Maluku
- 2019 Sunda Strait
- 2019 Ambon