M7.8 Philippines

Similar Stochastic Events | Summary
Posting Date: June 8, 2026, 1:00:00 PM

A magnitude 7.8 earthquake struck the southern coast of Mindanao in the Philippines on June 8, 2026, with its epicenter off the coast of Sarangani province — described as the strongest earthquake to hit the country since 1990. The quake killed at least 32 people and injured more than 200 others, mostly in damaged buildings, and sent a roughly one-meter (three-foot) tsunami into nearby coastal areas. A series of powerful aftershocks followed about two hours after the initial quake, with the largest measuring 6.5.

ALERT™ subscribers can download similar stochastic event (SSE) IDs for this earthquake from the Downloads tab of this posting on the ALERT website. Compatible with Touchstone® and Touchstone Re™, the SSEs were selected based key information on the earthquake, including location, magnitude, and depth. They should only be used with exposures in the Philippines and Indonesia.

Structural damage was widespread across the affected region. In General Santos City, several buildings collapsed or were severely damaged, including a popular fast food restaurant, and the quake also triggered a landslide in Sarangani province that killed 13 villagers. Parts of St. Elizabeth Hospital in General Santos were severely damaged, forcing patients and medical personnel to evacuate and temporarily operate outside the main building. Buildings at Notre Dame of Dadiangas University also partially collapsed. In Sarangani, a bridge sustained cracks and a shrine featuring a large cross collapsed. Police stations in the area also reported cracked walls, preventing officers from re-entering.

The earthquake also had regional reach beyond the Philippines. Smaller tsunami waves were measured in Indonesia, Palau, and as far away as southern Japan. In Indonesia, thousands of villagers were displaced and evacuations were carried out in coastal communities in North Sulawesi province. Philippine President Ferdinand Marcos Jr. activated emergency agencies and ordered the closure of schools in affected areas, with 3.2 million students and 128,000 teachers impacted on what was meant to be the first day of the school year.

According to the USGS, this earthquake resulted from thrust faulting. The earthquake’s depth and moment‑tensor estimate indicate the event occurred within the complex zone of active deformation associated with westward subduction of the Philippine plate beneath the Sunda plate. Northeastern Indonesia and southern Philippines are characterized by complex tectonics in which motions of numerous small plates accommodate the large-scale convergence between the Philippine Sea and Sunda plates. At the location of this earthquake, the Philippines plate is moving towards the Sunda at 7.3 cm/yr.

While commonly plotted as points on maps, earthquakes of this size are more appropriately described as slip distributed over a broad fault area. Thrust faulting events of the size of the June 7 earthquake are typically about 120 x 50 km in size (length x width).

The region around this earthquake is tectonically active and large earthquakes are common. Since 1900, 35 earthquakes with a magnitude of M 7+ have occurred within 300 km of this event. The largest was a magnitude 8.3 earthquake on August 15th, 1918 that occurred 118 km to the west. More recently, a magnitude 7.4 event occurred on October 10, 2025, 260 km to the northeast, resulting in more than ten fatalities.

We will continue to monitor the aftermath of this event; however, additional ALERT postings for this event are not currently planned at this time.  Please contact your Verisk representative with any questions about this event.

Similar Stochastic Events | Downloads
Posting Date: June 8, 2026, 1:00:00 PM

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Similar Stochastic Event IDs

Product	File Type	Description	Download
TOUCHSTONE / Re	Excel (xls)	Selected set of stochastic events, with Readme in Excel format
TOUCHSTONE / Re	CSV (csv)	Selected set of stochastic events, formatted for import into Touchstone/Re