Baribis Fault
Active fault in Java, Indonesia
From Wikipedia, the free encyclopedia
The Baribis Fault (Indonesian: Sesar Baribis) is a geological feature located in the northern part of Java.[1] This fault, estimated to be 100 kilometers (62 miles) long, stretches from Purwakarta to Lebak Regency[2] and is a threat to the Jakarta metropolitan area because the fault is partially located within the metropolitan area itself.
| Baribis Fault | |
|---|---|
Possible fault track | |
| Location | Java |
| Country | Indonesia |
| Region | West Java, Jakarta, Banten |
| Cities | Bekasi, Jakarta, Depok, South Tangerang |
| Characteristics | |
| Segments | Bekasi-Purwakarta, Jakarta |
| Length | 100 km |
| Displacement | 5 mm/year |
| Tectonics | |
| Status | Active |
| Earthquakes | 1834 Java earthquake |
| Type | Thrust |
| Age | Pliocene-Pleistocene |
Characteristics
The fault is estimated at 100 km long and stretches from Purwakarta to Lebak Regency, moving at a rate of 5 mm a year.[3] It is a thrust fault formed during the Pliocene era.[4] It divides into two segments.[5]
Fault activity
Half of the fault is locked[6] but it caused a large earthquake in 1834 which resulted in five deaths and serious damage in West Java.[7] It sometimes causes small earthquakes.[8]
Hazard
The fault passes through the Jakarta metropolitan area, which has a population of more than 30 million, where an earthquake could cause huge loss of life and damage.[9]
