Abstract
A magnitude 5.6 earthquake occurred in West Java, Indonesia, on November 22, 2022. The epicenter of the the earthquake was in the Cimandiri Fault Zone and the depth of the rupture was approximately 11 km. While most of the damage was limited to the town of Cianjur, the shaking caused by the earthquake was felt as far as the capital city of Jakarta. The highest peak ground acceleration value recorded by the event was approximately 0.15 g at a station located approximately 14 km from the epicenter. The earthquake caused widespread damage to buildings, lifelines, and loss of human lives. The death toll from the earthquake was 310, with approximately one-third of the fatalities being children. Widespread damage to residential buildings, schools, and government buildings was reported following the earthquake. Indonesia has well-established building codes that explicitly address the issue of seismic design. However, much of the observed damage appears to have been due to non-compliance between the constructed buildings and the regulating building standards. Most of the affected structures were 1- and 2-story buildings constructed using masonry infills, some of which are surrounded by concrete frames (intended as confined masonry). In addition to building damage, the earthquake caused the disruption of several lifeline facilities, including potable water supply, power outage, and ground transportation. This project encompasses the products of StEER’s response to this event, the Preliminary Virtual Reconnaissance Report (PVRR).
