Megathrust earthquake hits East Java, injures dozens in Pacitan

by Rachel Morgan News Editor

A magnitude 6.2 earthquake struck Pacitan City, East Java, early Friday, resulting in damage to homes and at least 36 injuries, according to Indonesia’s Meteorology, Climatology, and Geophysics Agency (BMKG).

Earthquake Details

The quake, which struck at 01:06 local time, was centered offshore at a depth of 58 kilometers southeast of Pacitan City. BMKG’s Earthquake and Tsunami Director, Daryono, stated the quake had a thrusting mechanism typical of subduction megathrust zones along southern Java.

Did You Recognize? Java’s southern coast has a history of tsunami events dating back to 1840 and 1859.

Shaking was reported across a wide area, including Pacitan, Bantul, and Sleman (IV MMI); Kulon Progo, Trenggalek, Wonogiri, Malang, Blitar, Surakarta, Banjarnegara (III MMI); and Tuban, Jepara (II MMI). The intensity levels indicate the quake was felt noticeably by many, with some experiencing difficulty standing.

Damage Assessment

As of midday Friday, officials reported at least 15 homes in Pacitan sustained varying degrees of damage. Erwin Andriatmoko, head of Pacitan’s disaster agency (BPBD), noted that data collection was ongoing across all districts. In Bantul District, officials identified at least 20 damaged buildings and recorded 36 injuries across several subdistricts.

Expert Insight: The location of Pacitan, facing the Java megathrust, and its geography—narrow bays and beaches—suggest a heightened vulnerability to tsunami amplification should a stronger earthquake occur.

BMKG modeling indicated no tsunami threat following the quake. As of 01:35 local time, no aftershocks had been detected.

Frequently Asked Questions

What caused the earthquake?

The earthquake was caused by a shallow megathrust event with a thrusting mechanism typical of subduction megathrust zones along southern Java, according to BMKG’s Earthquake and Tsunami Director Daryono.

Where was the earthquake felt?

Shaking was felt across multiple regions including Pacitan, Bantul, Sleman, Kulon Progo, Trenggalek, Wonogiri, Malang, Blitar, Surakarta, Banjarnegara, Tuban, and Jepara.

Was there a tsunami threat?

BMKG modeling indicated no tsunami threat following the earthquake.

Officials continue to assess structural damage and provide assistance to affected residents. BMKG continues to monitor seismic activity, and further aftershocks are possible.

How will communities in the region prepare for potential future seismic events, given the known risks associated with the Java megathrust?

You may also like

Leave a Comment