MANILA (UPDATE)—A series of aftershocks continued to jolt southern Mindanao, following Tuesday's 6.6-magnitude earthquake that left at least 6 people dead and scores injured.

State seismologists have recorded at least 241 aftershocks, wherein 152 were plotted while 46 were felt, as of 11 p.m. Tuesday.

Ten of these aftershocks, which occurred southeast of Tulunan town in Cotabato, ranged from light to moderate.

The Philippine Institute of Volcanology and Seismology (Phivolcs) reported that the aftershocks measured between 4.3 to 6.1 in magnitude.

The latest aftershock occurred at 5:22 a.m. Wednesday, measuring 5 in magnitude.

Intensity 5, which may cause strong shaking and rocking throughout a building, was recorded in Kidapawan City, Cotabato.

Ishmael Narag, officer-in-charge of Phivolcs' seismology division, said the aftershocks may last until Christmas.

"[The] aftershocks will continue for days to weeks. We’ll be recording events as far as Christmas," he said.

Amid the high seismic activity, Phivolcs plans to put up 4 additional temporary stations in southern Mindanao to closely monitor the area.

Narag said they are monitoring a nearby fault that runs from Makilala in Cotabato to Malungon in Sarangani.

"Sa ngayon, wala pa kaming nakikitang trending ng earthquakes do'n sa lugar that would suggest na gagalaw na ito in the future," he said.

Mindanao is still reeling from the 6.3-magnitude earthquake that struck on Oct. 16, killing at least 7 people and hurting 215 others.

The National Disaster Risk Reduction and Management Council (NDRRMC) said the last earthquake affected 7,303 families or 35,481 people and damaged 7,089 infrastructures, mostly houses and schools.

The Philippines experiences frequent earthquakes as it lies in the geologically active Pacific Ring of Fire.—With reports from Vivienne Gulla and Lyza Aquino, ABS-CBN News