A strong magnitude 6.1 earthquake rattled the Java region of central Indonesia on Saturday, the U.S. Geological Survey reported.

The epicenter of the quake was 39 kilometers (24 miles) south-southeast of Adipala.

An earthquake of this magnitude can cause a lot of damage if it hits a very populated area, according to a Michigan Tech seismology website.

Sutopo Purwo Nugroho, a spokesman for the National Disaster Mitigation Agency, said the quake rocked the southern coast of Java for 30 seconds, sending people fleeing houses and office buildings.

According to Nugroho, the quake damaged several homes in the southern part of Central Java.