Mount Kanlaon is the highest point in Negros Island and in the Visayas at 2,465 meters above sea level. People living near the foot of the stratovolcano are urged to be prayerful and vigilant after a recent series of volcano-tectonic earthquakes jolted some parts of Negros Occidental. ARCHIE ALIPALO/PN BACOLOD City – People living near the foot of Mt. Kanlaon in Negros Island have been urged by their respective local authorities to be vigilant and prayerful after a recent series of volcano-tectonic earthquakes jolted some parts of Negros Occidental. In La Castellana, Mayor Rhumyla Nicor-Mangilimutan said she felt a strong tremor around 1 a.m. She was able to get in touch with some village officials afterwards. Residents in neighboring towns such as La Castellana and Pontevedra as well as in the cities of Bago and Bacolod also felt the 2:06 a.m. temblor at Intensity IV. Magnitude 4.7 tremors were felt in La Carlota at 1:01 a.m. and 2:06 a.m. Phivolcs said Kanlaon’s seismic monitoring network recorded 136 tectonic earthquakes on the western flanks during the 24-hour observation period. In Bago City, the city government posted on its Facebook page a call on its residents to stay safe following the earthquakes. It also warned local government units to strictly prohibit entry into the four-kilometer radius permanent danger zone “due to the further possibilities of sudden and hazardous steam-driven or phreatic eruptions”. He added the local government unit has been monitoring the earthquakes which started around 4 p.m. on June 21. On Monday, Mangilimutan met with personnel of the Municipal Disaster Risk Reduction and Management Office to discuss the local government’s preparedness. The mayor also urged her constituents to pray for their safety. “As always, what we do is we confirm it with Phivolcs if it’s volcanic or tectonic. We just have to prepare, we don’t know anytime Mt. Kanlaon might erupt,” she said in a radio interview. The DOST-Phivolcs also advised civil aviation authorities to “avoid flying close to the volcano’s summit as ejecta from any sudden phreatic eruption can be hazardous to aircraft. (With a report from PNA/PN) “Pray, be vigilant and keep safe,” La Carlota City Mayor Rex Jalando-on said on his Facebook post. Meanwhile, the Department of Science and Technology (DOST)-Phivolcs reminded Negrenses that Mt. Kanlaon, which straddles the provinces of Negros Occidental and Negros Oriental, is still on Alert Level 1, or at an abnormal condition and has entered a period of unrest. According to the Philippine Institute of Volcanology and Seismology’s (Phivolcs) Kanlaon Volcano Bulletin No. 22 issued at 8 a.m. on June 22, four earthquakes took place at 1:01 a.m., 1:04 a.m., 1:34 a.m., and 2:06 a.m. the same day with recorded magnitude of 3.2 to 4.7. The tremor at 1:01 a.m. was felt at Intensity V in La Carlota and Intensity III in Bago and Bacolod cities.