 Macroseismic Intensity Map of the earthquake[1] | |
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| UTC time | 1990-06-14 07:40:56 |
|---|---|
| ISC event | 366142 |
| USGS-ANSS | ComCat |
| Local date | June 14, 1990 (1990-06-14) |
| Local time | 3:41 pm (PST)[2] |
| Magnitude | 7.1Mw |
| Depth | 15 km (9.3 mi)[2] 18.1 km (11.2 mi)[1] |
| Epicenter | 11°20′N122°06′E / 11.34°N 122.10°E /11.34; 122.10[2] |
| Areas affected | Western Visayas |
| Total damage | ₱30 million[2] |
| Max. intensity | PEIS VII (Destructive)[2] MMI VIII (Severe)[1] |
| Tsunami | No |
| Landslides | Yes |
| Casualties | 8 dead, 41 injured |
The1990 Panay earthquake occurred at 3:41 p.m.local time on 14 June 1990 on the island ofPanay inVisayas,Philippines. With a measuredmoment magnitude of 7.1, the earthquake left eight dead, 41 injured, and an estimated damage of₱30 million.[2]
According to thePhilippine Institute of Volcanology and Seismology (PHIVOLCS), the epicentre was located in the vicinity ofCulasi,Antique, on Panay Island. The earthquake had a depth of 15 km (9.3 mi) and was produced in the collisional zone off the western side of Panay Island by a fault movement.[2] However, theUnited States Geological Survey (USGS) recorded the epicentre to be in Barangay Union,Libertad, in the same province, and the depth of focus of the earthquake at 18.1 km (11.2 mi), deeper than what is recorded by PHIVOLCS.[1] The shaking was felt strongly acrossWestern Visayas, while weak to moderate tremor was experienced in other parts of the Visayas, as well as in portions ofSouthern Luzon andNorthern Mindanao. The highest reportedPEIS intensity was VII (Destructive) in Culasi, Antique andLibacao, Aklan.[2]
In Culasi, the majority of casualties were reported. A total of seven people were killed, while 31 others were injured. Several residential and commercial buildings collapsed and were damaged, along with four bridges. Fissures were recorded in two barangays as well as an upliftment in BarangayBagacay. Landslides also occurred along the slope ofMt. Madya-as.[2]
Most structural and infrastructural damage was recorded in the province ofAklan. A number of residential buildings, two churches, and a river control project were damaged, while five highway bridges suffered partial damage in Libacao.[2] The public market and Baptist Church, including its icons, suffered substantial damage inBalete. A rice mill and the rural health center were destroyed, while some bridges and another public market were partly damaged. One home reportedly collapsed as the others sustained partial destruction. A fissure was also recorded in a river.[2] InMadalag, cracks appeared on the municipal and district hospital.[2] In the capital,Kalibo, slight damage occurred to some homes made of ceramics, the Aklan Science High School, and a cinema. The same goes with theKalibo Cathedral, as it endured cracks on its walls.[2] InNumancia, there was asand boil observed.[2] InAltavas, cracks were found on the walls of a church, while the town's wharf and a holy icon within the same church were ruined.[2] InMakato, the sports complex, as well as the posts and beams of the public market, were damaged.[2]
The earthquake also affectedIloilo province, particularly inCalinog, wherein the Catholic Church and certain buildings of thePhilippine Constabulary Regional Command were damaged.[2]
InCapiz, effects were noted inCuartero, where multiple houses and a church sustained damage,[2] and inSigma, where a bridge and a communication tower were harmed.[2]
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