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Records indicate that since the late sixteenth
century, large earthquakes centered off the Peruvian coast have
generated several destructive tsunamis (1586, 1604, 1647, 1687,
1746, 1865, 1868, 1914, 1942, 1960, 1966, 1996). Of those listed,
five were particularly destructive. These include the 1586, 1604,
1687 and 1746 tsunamis, as well as the 1868 Arica tsunami, discussed
in a separate section. Unfortunately, for the sake of tsunami
research, very little is known about these four tsunamis. The
few existing written records concerning the source earthquakes
mention unusual activities of the sea following the shocks, but
give few specifics. The following text gives a brief description
of what little information exists about these events.
The 1586 Tsunami
This event apparently took place on July
9, 1586, after a magnitude 8.6 earthquake leveled the portion
of central Peru in the vicinity of Callao and Lima. The tsunami
generated by this earthquake reportedly produced 24 meters of
runup, and hundreds of meters of inundation at Callao. Records
indicate that the waves reached an estimated 84 feet in height,
and up to 6 miles of inland inundation in some locations, though
none of this can be confirmed. This tsunami also produced two
meters of runup in Japan, where they apparently took better notice
of such things in the sixteenth century.
The 1604 Tsunami
On November 24, 1604, what is considered
to be the largest earthquake to strike Peru in recent times leveled
most of southern Peru, including the cities of Arica, and Camana.
The earthquake, of an estimated magnitude between 8.5 to 9.0,
generated a large tsunami that affected a 900 to 1200 miles of
the South American coast. The waves caused great destruction
to all ports in the South of Peru, especially at Camana, and
Arica, that later of which was washed away completely by the
waves. Records indicate that the tsunami runup reached 16 meters,
with up to 10 kilometers of inundation (another questionable
value). This tsunami caused destruction at ports in Chile as
well, but ports in the north of Peru reported little if any damage
form the waves.
The 1687 Tsunami
On October 20-21, 1687, two large earthquakes,
with magnitudes estimated at 8.0 and 8.4, struck the area surrounding
Lima within two hours of each other. The second of these apparently
generated a tsunami that produced 5 to 10 meters of runup at
Callao. The tsunami' effects were more severe at the ports of
Canete, Chicha, Pisco and Puerto Caballas, located slightly further
south along the Peruvian coast. Pisco reported disappeared, a
victim of the waves. At least 500 people died as a result of
this tsunami, and its effects were felt as far away as Japan.
The 1746 Tsunami
The October 28, 1746 earthquake was reportedly
the largest to strike central Peru in recorded history. This
magnitude 8.0 to 8.6 quake completely destroyed the cities of
Lima, Callao, Chanacay, and everything else along the central
Peruvian coast. Reportedly half an hour following the shock,
a large tsunami struck the shore causing great damage at all
Peruvian ports. Callao received the worst blow, with a 24 meter
runup, and 5 kilometer inundation that sank all 23 boats in the
harbor, and completely destroyed the town. Eye witness accounts
from the event indicate that the first of the two waves to strike
Callao was up to 80 feet high. Another account mentions that
the tsunami transported a boat one mile inland. In total, the
combined death toll from the earthquake and tsunami exceeded
4,000. The tsunami was also noticed at Acapulco, Mexico.
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