Understanding the M 4.9 Pacitan Earthquake: Key Information to Know
In a recent seismic event that shook Pacitan, East Java, on Saturday, January 11, 2025, the Meteorology, Climatology, and Geophysics Agency (BMKG) has provided crucial insights into the occurrence and impact of the earthquake, extending as far as Surakarta. Let’s delve deeper into the details surrounding this seismic activity.
When and Where Did the Earthquake Occur?
The earthquake struck at 14:25:10 WIB with a magnitude of 4.9. Director of Earthquake and Tsunami at BMKG, Daryono, explained that the epicenter of the quake was located at coordinates 8.88 degrees LS and 110.97 degrees BT. “This earthquake originated in the sea, precisely 79 km southwest of Pacitan at a depth of 29 km,” he revealed on Saturday.
Why Did This Earthquake Occur?
Daryono mentioned that the Pacitan earthquake was of the tectonic type. Considering the epicenter’s location and the hypocenter’s depth, this earthquake falls under the category of shallow earthquakes. The primary cause of this event was the subduction activity of the tectonic plates in the megathrust zone, known to be a seismic-prone area.
Impact of the Earthquake
The effects of this earthquake were felt in various regions, ranging from Pacitan to Yogyakarta and parts of Central Java. BMKG recorded the intensities of the tremors felt, including:
– Scale II-III MMI (e.g., in Klaten, Yogyakarta, Pacitan, Ponorogo, Trenggalek, Wonogiri, Sukoharjo, and Surakarta): At this level, the vibrations were akin to a passing truck.
– Scale II MMI (e.g., in Karangkates, Malang): Here, the tremors were lightly felt by people and caused light suspended objects to sway.
As of now, Daryono has reported no damages resulting from the earthquake.
Are There Aftershocks?
Following the main quake, until 14:45 WIB, BMKG noted one aftershock. This highlights the necessity for the public to remain vigilant and stay updated with information from BMKG or other relevant authorities in dealing with such seismic activities.
In times like these, it’s essential to prioritize safety, preparedness, and community resilience. Remember, staying informed and alert can make a significant difference in how we navigate and respond to natural disasters. Let’s keep one another safe and informed during these challenging times.
