US Why Is Puerto Rico Having So Many Earthquakes?
Earthquakes Destroy Punta Ventana, Puerto Rican Natural Wonder: 'Our Icon Is' Gone
Punta Ventana, a famous rock formation and tourist landmark in Puerto Rico, was destroyed when the island was hit by two strong earthquakes Monday morning.Punta Ventana, a stone arch shaped like a window and located beside the ocean of Puerto Rico’s southern coast, was destroyed after the Caribbean island was rocked by a 5.8 magnitude earthquake early Monday morning. A 5.1 magnitude quake followed just hours later.
Puerto Rico has been trembling for more than a week.
An earthquake with a preliminary magnitude of 6.4of the island at 4:24 a.m. local time on Tuesday, according to the United States Geological Survey. That came after a week of smaller tremors clustered in the same area offshore.
Punta Ventana, Puerto Rican natural wonder, collapses amid earthquake
SAN JUAN, Puerto Rico - One of Puerto Rico's iconic natural wonders - a soaring stone arch along the southern coast known as Punta Ventana or Window Point - collapsed early Monday as a 5.79 magnitude earthquake rattled the island. Denniza Colon, a 22-year-old resident of Guayanilla, said she went by the area Monday and was shocked to find the arch, a place that she visited frequently as a child, had simply vanished.
Three strong aftershocks, with preliminary estimates of 5.6, 5.2 and 4.5 magnitude, followed Tuesday’s big quake. A bigger aftershock, of 5.8 magnitude, hit at 7:18 a.m. local time. The temblors knocked out power to much of the island, seriously damaging homes and buildings and leaving at least one person dead.
Tuesday’s shaking followedand aftershocks that leveled homes on Monday.
“Things are really very tense about what has been going on, because this is not normal — so many tremors,” Mayor Nelson Torres Yordán of Guayanilla said this week.
But the Caribbean, a region that faces the threat of hurricanes from the Atlantic in late summer and early fall, is also subject to seismic hazards like those striking Puerto Rico this week.
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Why are there so many earthquakes in Puerto Rico right now?
At about three times the size of Rhode Island, Puerto Rico is squeezed between the border of the North American and Caribbean tectonic plates.
The Puerto Rico Trench, north of Puerto Rico and the United States Virgin Islands, is an undersea fault zone. The North American plate is sliding under the Caribbean plate there, creating the potential for earthquakes and undersea landslides that can set off tsunamis.
“We’re just as likely to have earthquakes as a place like California, Japan, New Zealand, Alaska,” said Elizabeth Vanacore, a seismologist with the Puerto Rico Seismic Network.
When the tectonic plates in the region slide past each other and squeeze together, energy and stress build up until one side of a fault pops up, unleashing an earthquake. The earthquakes redistribute stresses along the fault for a time, until those stresses build up again and new tremors occur.
Strong, 5.2 magnitude earthquake in Puerto Rico
A 5.2 magnitude earthquake cracked walls and brought down power lines in Puerto Rico on Friday as the Caribbean island was trying to recover from its worst quake in over a century on Tuesday. © Reuters People rest at a camp set up in a lot next to their homes after the earthquake in Yauco, Puerto Rico, January 9, 2020. REUTERS/Marco Bello The latest temblor took place at 6:26 p.m. (5:26 p.m. EST), with its epicentre around 4 km (2.5 miles) from Indios on the island's southern coast, the U.S. Geological Service reported.Local residents posted tweets showing damage from the quake, which one described as "super strong.
Should residents be worried about a tsunami?
Mayita Meléndez, mayor of the city of Ponce, said people living near beaches are desperate to get out of their homes for fear of tsunamis. “It’s not safe,” Ms. Meléndez said. “The earth is moving constantly.”
Early this morning, the United States National Tsunami Warning Center said there wasfrom Tuesday morning’s earthquake. The local authorities initially issued a tsunami watch before canceling it, according to Puerto Rico’s emergency management agency.
A tsunami happens when a quake on the seabed suddenly pushes water upward, producing a perilously towering wave. In 1918, an earthquake near the island’s northwestern coast triggered a tsunami that killed 118 people, according to the geological service.
How rare are earthquakes in the region?
Puerto Rico has seen damaging quakes before, but major earthquakes in the southwestern part of the island are unusual in recent history.
The last significant temblors recorded in that area, in 1991 and 1999, had a magnitude of about 4.1, according to the Puerto Rico Seismic Network, whose data dates to 1986.
Major earthquakes have regularly devastated cities in the Caribbean, including Kingston, the capital of Jamaica, which was destroyed twice in three centuries. Ten years ago, a 7.0-magnitude earthquake struck Haiti on Jan. 12, killing more than 200,000 people and destroying tens of thousands of buildings.
Is it safe to travel to Puerto Rico?
Seismologists said that more earthquakes are expected to be felt on the island in the next few days because the seismic activity is occurring close to land. But the frequency of aftershocks is expected to slow down over time, which means the chances of another intense earthquake will also fall.
Arrivals and departures at the international airport in San Juan, which was running on generators, were operating on or close to schedule Tuesday morning.
Alejandra Rosa and Patricia Mazzei contributed reporting.
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Four thousand people are still in shelters and many others are sleeping outside after yet another earthquake on Saturday.A 5.9 magnitude earthquake shook southwestern Puerto Rico on Saturday just before 9 a.m. It was the strongest since last week's 6.4 quake. More than 2,000 tremors have occurred since December 28.
Series of earthquakes hit Puerto Rico
U.S. territory experiencing heavy seismic activity.
Several earthquakes rattle Puerto Rico, cause damage
A soaring stone arch collapsed into the sea as a 5.8 magnitude earthquake shook Puerto Rico. The earthquake hit the island early Monday morning. It was the ...