1. SITUATION OVERVIEW
A. Chronological of Events and Eruption Notifications from 13 January to 02 March 2018 (TAB A)
B. Current Situation
03 March 2018
Mayon's activity in the past 24 hours was characterized by general quiescence, gravity-driven lava flow and degassing from the summit crater. Throughout the day, intermittent and weak to moderate emission of dirty-white to brownish steam-laden plumes that drifted west-northwest, west-southwest and north-northwest was observed. At night, lava flows were observed to continue moving downslope within 3.3 kilometers, 4.5 kilometers and 900 meters from the crater on the Mi-isi, Bonga and Basud Gullies, respectively.
A total of one hundred twenty-seven (127) volcanic earthquakes and nine (9) rockfall events were recorded by Mayan's seismic monitoring network. Sulfur dioxide (SO 2) emission was measured at an average of 1,403 tonnes/day on 02 March 2018. Deflation of the lower slopes that began on 20 February is still being recorded by electronic tilt. Nonetheless, overall electronic tilt and continuous GPS data indicate that the edifice is still swollen or inflated relative to November and October 2017, consistent with campaign Precise Leveling data acquired last week.
A. Pre-Emptive Evacuation (TAB B)
- A total of 16,380 families were pre-emptively evacuated in Region V due to Mt. Mayon phreatic eruption.
Source: D1LG SitRep No. 04 as of 24 January 2018
B. Affected Population
As of 6:00 PM, 02 March 2018, a total of 23,588 families 1 90,370 persons were affected in 61 barangays in the municipalities/cities of Bacacay, Camalig, Guinobatan, Ligao City, Daraga, Tabaco City, Malilipot, Santo Domingo (Libog), and Legazpi City in the Province of Albay (Region V).
Currently, a total of 17,360 families or 66,746 persons were served inside and outside evacuation centers (ECs):
Inside 58 ECs: 15,865 families / 61,009 persons
Outside ECs: 1,495 families / 5,737 persons