Coast Guard Helps Deploy Seismic Sensors in Southeast Alaska

Thursday, May 02, 2013
Photo: USCG

The crew of the Coast Guard Cutter Maple worked with scientists from the U.S. Geological Survey to deploy 12 seismic sensors along the Queen Charlotte-Fairweather Fault, northwest of Craig, Alaska.

The team placed the ocean-bottom seismometers along a 28-mile section of the Queen Charlotte-Fairweather Fault to improve understanding of recent earthquake activity and associated seismic and tsunami hazards in Southeast Alaska coastal communities.

"The Queen Charlotte-Fairweather fault is similar to the northern San Andreas fault, with the same earthquake potential," said Dr. Peter Haeussler, a research geologist with the USGS. "A problem is that it is located entirely offshore, so it is much harder to study."

The Maple, a 225-foot buoy tender homeported in Sitka, has all the necessary equipment on board to handle hefty equipment like the OBS.

"Our crew uses the buoy deck and crane to routinely service aids to navigation of all shapes and sizes," said Lt. Cmdr. Fred Seaton, commanding officer of the Maple. "We were more than happy to assist the USGS in deploying equipment that will raise earthquake and tsunami awareness in Southeast Alaska."

The crew deployed the 12 seismometers over two days before returning to Sitka. These instruments, and the data they record, are due to be recovered in early June.

"The Coast Guard's willingness to provide a ship for the deployment allowed us to take advantage of a unique opportunity to observe aftershock activity and learn more about fault structure and expected long-term seismic behavior in the region," Haeussler said.


  • Photo: USCG

    Photo: USCG

Maritime Today

The Maritime Industry's original and most viewed E-News Service

Maritime Reporter November 2015 Digital Edition
FREE Maritime Reporter Subscription
Latest Maritime News    rss feeds

Coast Guard

Rocket Debris Found Near Isles of Scilly

A piece of metal thought to be debris from an American space rocket was recovered from the sea off the Isles of Scilly.   The metal – a large section of alloy about 10 meters by 4 meters,

Passengers Transferred from Stranded Ferry

Passengers were transferred from Indonesia-registered Sea Prince after the ferry struck a floating object after leaving the Nongsapura ferry terminal in Batam late on November 29.

Indonesia Ferry Hits Trouble, 97 Rescued

Almost 100 people were rescued when a ferry sailing towards Singapore from the Indonesian island of Batam hit a floating object and reportedly started to sink, authorities in the city-state said.

Ocean Observation

Shipping emissions 17% of global CO2

Shipping could be responsible for 17% of global CO2 emissions in 2050 if left unregulated, according to a new scientific study conducted by European Parliament

Sustainable Shipping Initiative leans on shipping ahead of COP21

The Sustainable Shipping Initiative (SSI) is stepping up pressure on the shipping industry ahead of the COP21 Climate Change Conference in Paris, says The Chamber of Shipping of British Columbia.

Panama-Registered Ship Sinks off Vigan City

A Panamanian cargo vessel MV Fortune Life sank off the coast 130 nautical off Vigan City in Ilocos Sur, Philippine Coast Guard (PCG), uthorities said.   The

Maritime Contracts Maritime Security Naval Architecture Offshore Oil Pipelines Port Authority Ship Electronics Ship Repair Ship Simulators Winch
rss | archive | history | articles | privacy | contributors | top maritime news | about us | copyright | maritime magazines
maritime security news | shipbuilding news | maritime industry | shipping news | maritime reporting | workboats news | ship design | maritime business

Time taken: 0.0775 sec (13 req/sec)