A 2.7 magnitude earthquake in Jementah, Segamat provides geological evidence of ancient volcanic activity in the area, says JMG.
JOHOR BAHRU: A minor earthquake measuring 2.7 on the Richter scale recorded in Jementah, Segamat provides evidence of ancient volcanic activity in the Segamat area.
The Department of Minerals and Geoscience explained that the tremor occurred within the ancient Tertiary volcanic zone which experienced volcanic activity millions of years ago.
According to the Malaysian Meteorological Department, the earthquake’s epicentre was at 2.5°N, 102.8°E, roughly three kilometres west of Segamat with a depth of about 10 kilometres.
Analysis using the Malaysian Geological Map shows that the area is composed of lava flows and late Tertiary rock deposits including shale, sandstone, conglomerates, and minor coal layers.
These geological characteristics confirm that Segamat was once a site of ancient volcanic activity and is now classified as a modified volcanic zone.
JMG also noted that yesterday’s tremor was not the first in the area as a 4.1-magnitude earthquake had previously been recorded nearby.
Both events highlight a recurring pattern of micro-seismic activity along the fault line in the Tertiary volcanic zone of Segamat.
The earthquakes suggest a possible reactivation of tectonic stress on ancient rocks due to adjustments in the Earth’s crust.
JMG stated that the minor earthquake was classified as a shallow, local tremor and posed no major threat to public safety or structures.
The tremor was felt in Segamat and nearby areas despite its minor nature. – Bernama
