PANAMA — A powerful magnitude 7.7 earthquake struck southern Panama on October 9, 2026, triggering widespread shaking, a major aftershock sequence and temporary tsunami-threat messaging across parts of the Pacific coast of Central and South America.
The U.S. Geological Survey lists the reviewed earthquake at M7.7, centered about 12 kilometers west-southwest of Pitaloza Arriba, Panama, at a depth of 12.6 kilometers. The event occurred at 17:56 UTC on October 9, equivalent to about 12:56 p.m. local time in Panama and 1:56 a.m. on October 10 in the Philippines.
What Happened?
Strong shaking was reported across Panama, including in and around Panama City. USGS ShakeMap products indicated severe shaking near the most strongly affected area, while officials and news agencies reported damage to buildings and roads in several provinces.
Panamanian authorities reported no fatalities in the immediate aftermath, while injury and damage assessments continued. Reports included structural damage, road fissures and power outages affecting multiple provinces. The Panama Canal remained operational, while Tocumen International Airport experienced a temporary disruption before operations continued.
The earthquake was followed by a strong sequence of aftershocks. USGS listed a magnitude 6.6 event west of Río Grande later on October 9, alongside several other aftershocks in the magnitude-5 range. News reports said more than 40 aftershocks had been recorded within hours of the mainshock.
Tsunami threat was later cancelled
Pacific tsunami authorities initially issued threat information following the earthquake. Later bulletins indicated that there was no continuing tsunami warning, advisory, watch or threat in effect for the event.
The NOAA Pacific Tsunami Warning Center used a magnitude of 7.6 Mwp in its tsunami messaging, while the current USGS event page lists the earthquake as M7.7. Differences of this kind can occur as agencies use different magnitude solutions and update products during the first hours after a major earthquake.
Why this matters
A shallow earthquake in the upper magnitude-7 range can produce intense local shaking and a large aftershock sequence even when catastrophic losses do not immediately materialize. The Panama event is also a reminder that damage outcomes depend on more than magnitude alone: population exposure, building performance, infrastructure resilience and emergency response all shape the final impact.
WVF has previously examined the same distinction between earthquake magnitude and actual consequences in Four Earthquakes in One Day: What Happened, and Are They Connected? and in the Special Report The Big One Is Not the Biggest Threat—Our Buildings Are.
This remains a developing event. Magnitudes, damage counts, casualty figures and aftershock totals may be revised as official agencies complete their assessments.
The Following Footages were taken from social media.
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Recommended Further Reading
- Four Earthquakes in One Day: Venezuela, California, Japan — What Happened, and Are They Connected?
- The Big One Is Not the Biggest Threat—Our Buildings Are
- Mindanao 7.8 Earthquake: Complete Situation Report, Damage Assessment, and Humanitarian Impact
- Magnitude 5.6 Earthquake Strikes Offshore Davao Occidental on October 8
Sources
- U.S. Geological Survey — M7.7, 12 km WSW of Pitaloza Arriba, Panama
- NOAA / Pacific Tsunami Warning Center — Tsunami Threat Message No. 4
- Reuters — Strong Panama quake shakes nation, but avoids major destruction
- Associated Press — Panama rocked by powerful earthquakes and multiple aftershocks
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