Tsunamis in 1913

October 2, 1913 Tsunami: Off Coast, Panama

October 2, 1913 · Deaths: few · Questionable tsunami

A tsunami caused by a magnitude 6.7 earthquake and a landslide began at Off Coast, Panama on October 2, 1913 at 04:23:28 UTC. Its effects were recorded at 2 places.

Where the waves reached

The source (white) and every runup with a place, colored by the water height recorded there. A ring is a runup NCEI marks doubtful.

  • Under 1 m
  • 1 to 3 m
  • 3 to 10 m
  • 10 to 30 m
  • 30 m and more
  • Height not recorded

Tsunami warnings in force

The tsunami

Date
October 2, 1913, 04:23:28 UTC
Source
Off Coast, Panama
Cause
Earthquake and landslide
Earthquake
Magnitude 6.7
Runups recorded
2
Waters
Ocean
How certain
Questionable tsunami
Source location
7.100° N, 80.600° W

The toll

Deaths
Few (about 1 to 50)
Damage
Limited (under about $1 million) with the earthquake or eruption that caused it
Houses destroyed
Few (about 1 to 50)
Houses damaged
Many (101 to 1,000) with the earthquake or eruption that caused it

Where the literature gives no number, NCEI records a description on a scale of 1 to 4, printed here in its words. Damage is in millions of US dollars of the year of the event, not adjusted for inflation.

What the record says

NCEI’s account, from the sources it cites.

Reference #8015:

Extensive cracking and liquefaction of the ground was observed along the banks of the river at Pajanosa, as well as on the main road to Tonosi. At Cacao and along the bank of Rio Viejo at Las Huertas the shock caused widespread liquefaction. Near Cerro Bonita it was found that the Rio Joaquin had cut a new channel, caused by the opening of fissures at a bend in its channel. The shock caused many landslides in this area, mostly of surface material from steep slopes.

A few hours after the earthquake a submarine slide ruptured the Central & South American cable near the islet of Frailes del Norte, about 25 km off the south coast of Los Santos province. It has been reported that the broken end of the cable was found at a depth of 1463 m, whereas when the cable was first laid, the depth was only about 305.m. Here the shock caused an abrupt change in the bathymetry, which suggests that submarine sliding occurred. The tide gauge at Balboa showed no abnormal fluctuations of the.sea level, and, except in the Gulf of San Miguel on the east coast of the Gulf of Panama, from where it was reported that the sea behaved abnormally on the day of the earthquake, there is no evidence of aseismic sea wave.

Reference #273:

Viquez & Camacho, 1993:

Witnesses traveling in the Cocle steamboat were at the entrance of Gulf of San Miguel, Pacific coast, province of Darien, narrated: the sea at a considerable distance behaved oddly, presenting the appearance of boiling water. The water in its surroundings was making bubbles with small waves which seemed to break each other, without any direction defined. "

"Due to the first and strongest of the earthquakes the submarine cable broke. It was discovered that it had ripped 15 miles from the coast, in the neighborhood from the island of El Fraile del Norte, where there was a sudden rise in sea level."

Feldman:

"Panama, 2. At midnight, despite the rain, thousands of people ran to the street as a result of the panic from them several jolts of the earth .. . . "

"A gentleman who had just arrived in this capital from Panama, has supplied us with some data about terres (earthquakes) that lately have been whipping the Republic. . . . . . That the place called Tonosi was totally sunk and there were many victims. "

". . . the waters of the Joaquin and Flores rivers grew to extreme flooding the mountains, this without having rained and there have been cracks in surroundings of the rivers that can fit a cattle. "

"In Tonosi, the buildings of that town have been reduced to debris; that the rivers of their causes left and that they flooded considerable portions of land. "

"...... A small town called Pedaci disappeared completely, killing all the inhabitants . The tremors in that place were accompanied by large crescents, two rivers joined and Pedaci that was between them, totally disappeared. . .

Reference #1402:

Strange behaviour of the sea resembling boiling water. Sudden elevation of the sea level. Rivers rose up flooding areas inland. Pedasi Village disappeared (MacDonald and Johnston, 1913; Feldman, 1984; Viquez and Camacho, 1993a; Ambraseys and Adams, 1996).

Reference #11947:

Eleven years later, in 1913, the water level of the Pacific Ocean on the Panama coast rose suddenly after a great earthquake, and the Villa Pedassi community on the southern tip of the Azuero peninsula were reported to have been inundated.

Every runup

Nearest the source first. Heights are above sea level at the time; a tide gauge reads half the wave’s full height.

WhereCountryKm from sourceWater height, mInland, mMeasured byFirst wave, UTCDeaths
Isla Frailes del NortePanama58Eyewitness observation of water height
Pedasi (Pedaci)Panama80Eyewitness observation of water height

More

Every tsunami in 1913The 1900sTsunamis of PanamaThe earthquakeThis day in weather historyAlerts in force

Sources

Tsunami events and runups from NOAA’s National Centers for Environmental Information, Global Historical Hazard Database, cited as NCEI/WDS, doi:10.7289/V5PN93H7. Public domain. Read 2026-09-24. NCEI tsunami event 5668.