"Kalaupapa Settlement and Peninsula" by NPS/T. Scott Williams , public domain
KalaupapaGeology |
Geology at Kalaupapa National Historical Park (NHP) in Hawai'i. Published by the National Park Service (NPS).
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Geology of Kalaupapa
National Park Service
U. S. Department of Interior
Kalaupapa National Historical Park
Geologically Unique
Jutting out from rugged north shore sea cliffs of the island of Molokai, lies flat
Kalaupapa peninsula. One of the most remote locations in Hawai’i, the peninsula
and its towering cliffs were created through several episodes of volcanic and geologic
activity, over millions of years. The resulting landscape was one of natural isolation,
which was used for over a century to quarantine peoples with Hansen’s Disease.
An Ever-Changing Island
The Hawaiian archipelago is a chain of eight
major islands, reefs, and shoals extending
more than 1,600 miles in the Pacific
Ocean. The seven inhabited islands in the
southeast end of the chain, from northwest
to southeast, are Ni`ihau, Kaua`i, O`ahu,
Molokai, Lana`i, Maui, and Hawai`i. The
islands were formed by volcanic action, the
major ones being basaltic volcanic domes.
The Kalaupapa peninsula,
circled in red, juts out from
Molokai’s north shore.
Towering Sea Cliffs
filling in the channel between the two
islands to create the current configuration.
Molokai now measures about thirty-eight
miles long by a maximum of ten miles
wide. The island’s highest elevation is
the 4,970 foot Kamakou Peak. The main
body of the island is referred to by the
people at Kalaupapa as “topside” Molokai.
Molokai is the fifth largest island of the
Hawaiian chain. During the Tertiary
Period, two separate islands, West and
East Molokai, rose above sea level. As
the two islands grew they gradually
merged, with lava from East Molokai
Molokai’s north coast faces the ocean with
sheer cliffs, the result of a giant landslide.
Deep, steep valleys were subsequently cut
into the cliffs by stream erosion. Protruding
from this rugged coastline is the flat sealevel peninsula of Kalaupapa, cut off from
the rest of the island by the massive cliffs.
Molokai’s massive sea cliffs, rise to three
thousand feet above sea level, making
them among the highest in the world. For
decades, geologists thought these cliffs
were created through wind and water
erosion. Now however, it is believed the
cliffs formed approximately 1 to 1.5 million
years ago, after the northern 1/3 of Molokai
island collapsed into the sea. Rubble
deposited on the sea floor from the event
extends over forty miles north of the island.
As it split, the northern flank broke into
large blocks that subsided in different
amounts, forming steps in the submarine
slope leading up to the remainder of
the island. As the rubble settled, several
large fragments remained above sea-level,
creating three offshore islands - `ōkala,
Mōkapu, and Huelo. Isolated Huelo Island
retains original plant species found on
Molokai over two thousand years ago,
including a rare native loulu palm tree forest.
Wind, waves, and rain continue to shape the cliffs into the dramatic coastline seen today.
(rev. 03/2014)
Kalaupapa is a relatively flat plain, cut off
from the rest of the island by towering cliffs.
A Stunning Landscape Hundreds of thousands of years following the cataclysmic landslide which created the
dramatic north-shore cliffs of Molokai, another geologic event occurred. An off-shore volcanic
eruption formed the broad flat plain. These two geological events created the stunning and
scenic landscape of Kalaupapa - the flat, leaf-shaped peninsula against the towering sea cliffs.
The Peninsula Forms
Geology of
Imprisonment
Printed on recycled paper
with soybased inks.
Geologists theorize that between 230,000
and 300,000 years ago, long after the
extinction of the volcanoes that created
the rest of the island, an off-shore shield
volcano erupted from the sea floor. This
volcano, named Pu`u`uao, formed a relatively
flat triangle of land through continuous
flows of extremely hot and fast spreading
pāhoehoe lava. The peninsula was formed
over multiple eruptions which built up land
from the sea’s floor. The land mass created
by the cooled lava eventually connected
with the main part of the island, creating
the distinctly shaped peninsula known today.
Kalaupapa translated means “the flat plain”.
Flying over, or looking down from topside
Molokai, it becomes clear how the Hawaiian
name describes this land. The peninsula is
an area of approximately five square miles,
being 2 miles from cliffs to the tip, and
2.5 miles in width at the base of the cliffs.
The peninsula’s highest point is the Kauhakō
Crater, which rises to about 500 feet above
sea level. The volcano is now extinct, but the
crater, still connected to the ocean by a lava
tube, has become one of the worlds deepest
lakes, with a depth of more than 800 feet.
Surrounded on three sides by rough ocean
waters and cut off from the rest of Molokai by
towering cliffs, Kalaupapa Peninsula has always
been one of the most remote places in Hawai`i.
When the Hawaiian Kingdom allocated lands
for the express purpose of isolating people with
Hansen’s Disease, the peninsula of Kalaupapa
was deemed the most appropriate place.
Its natural isolation by the tall cliffs made
entry and escape by land extremely difficult.
Turbulent ocean waters limited places for
boats to land. Author Robert Louis Stevenson
after visiting in 1889, described the Kalaupapa
peninsula as “a prison fortified by nature.“
On January 3, 1866 the first twelve people
were dropped off on the east side of the
peninsula. Though they were in advanced
stages of the disease, likely having little
or no feeling in their limbs and possible
blindeness, they were expected to create a
self sustaining way of life. In the 103 years
that followed, more than 8,000 people living
with Hansen’s Disease would be sent to
Kalaupapa. For those who were taken from
their families, friends and homes, the rolling
ocean and towering sea cliffs must have been a
constant reminder of not only their geographic
isolation, but also the social isolation imposed
on them by a fearful and ignorant world.
EXPERIENCE YOUR AMERICA™
The cliffs of Molokai formed a
natural barrier which isolated
patients from the rest of the world.
www.nps.gov/kala