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New York and New Jersey Earthquake: How Airports Operate During Major Seismic Events

New York and New Jersey Earthquake: How Airports Operate During Major Seismic Events

BY ADAM SCHUPAK Published on April 05, 2024 0 COMMENTS

On Friday, April 5, a magnitude 4.8 earthquake rocked eastern New Jersey, causing buildings to shake for up to 30 seconds. The shaking was felt as far North as Albany in New York and south as Wilmington in Delaware. Following the earthquake, there were no reported deaths or injuries; the only damage to be noted was weaker buildings. Friday’s earthquake was one of the largest felt across the Northeast in recent years. 

 

4.8 earthquake strikes parts of New Jersey on Friday morning | Fox Weather
The earthquake's epicenter was in western New Jersey | Photo: FOX Weather

 

Ground Stops 

 

The Federal Aviation Administration (FAA) issued ground stops at the airports closest to the epicenter in response to the earthquake. The airports affected by ground stops included Newark Liberty Int’l Airport (EWR) and New York John F. Kennedy Int’l (JFK). The FAA ground stop was issued as a precaution while workers at these airports assessed airport facilities for any damage caused by the brief earthquake.

 



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The ground stop at JFK was lifted first at around 11:10 a.m. local time, while the EWR ground stop was lifted around 20 minutes later at 11:30 a.m. local time. Delays at JFK following the ground stop were less significant than in Newark, with JFK reporting an average 20-minute delay for flights departing the airport. In Newark, however, for some unlucky flights, this delay time was as high as one hour. 

 

Photo: Arkin Si | AeroXplorer

 

During earthquakes, it is standard operating procedure for airport facilities to cease operations while the tremors occur. Some airports, such as those in Japan, are prone to powerful, long earthquakes, but they are built to withstand more powerful quakes and have developed procedures to follow after a powerful earthquake. At Narita Airport (NRT) in Tokyo, if an earthquake of a certain magnitude or greater is detected, an announcement will sound, notifying passengers to stay calm and away from windows, walls, and pillars. 

 

If an earthquake is powerful enough in Japan, the terminal buildings will be evacuated, with airport employees bringing passengers outside on the tarmac. Following the Tōhoku earthquake in March 2011, all flights out of Japanese airports north of Tokyo were canceled. 

 

Passengers evacuate from the terminal bu
Passengers waiting at Tokyo Narita Airport (NRT) after the airport closed due to an earthquake in March 2011 | Photo: Getty Images

 

Most airports in Asia along the so-called "Ring of Fire" are built to an extent to withstand strong earthquakes. Following the April 4 Hualien City earthquake in Taiwan, air travel out of many of Taiwan's major international airports continued as normal, with only minor damage and delays reported from airlines. Some airports in Southern Japan were closed temporarily following the earthquake but have since reopened with minimal disruptions. 

 



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Most aircraft landing gears are built with shock absorbers to withstand hard landings. This means that an aircraft's landing gear will absorb most of the quake's tremors during an earthquake, leading to the aircraft being unaffected and undamaged.

 

Watch: Earthquake in Turkey splits Hatay airport runway into two -  BusinessToday
A runway at Hatay Airport (HTY) in Turkey was damaged by an earthquake in February 2023 | Photo: Business Today

 

Besides potentially affecting airport buildings and the sensitive radio and electrical equipment inside them, earthquakes can also affect airport runways through a process known as liquefaction. Liquefaction occurs when the rapid shaking of the ground during an earthquake causes the soil underground (typically soil with a higher amount of water) to act as a liquid. Liquefaction can no longer support the weight above it. 

 

This means that if an earthquake is powerful enough to cause the liquefaction of the soil beneath an airport runway, the runway will crack and buckle, leaving it unusable to air traffic afterward. Certain organizations, such as Oregon State University, are studying the effects a major earthquake might have on U.S. airports - in this case, Portland Intl Airport (PDX) in Oregon. 




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Adam Schupak
Hey there! I'm Adam, a passionate avgeek absolutely obsessed with everything that flies. I'm a student glider pilot, but have the ultimate ambition of become a commercial airline pilot. Besides aviation, I'm also passionate about urban design, civil engineering, and trains.

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