Serie van aardbevingen schudt Vancouver Island
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Serie van aardbevingen schudt Vancouver Island
Quake swarm rocks West Coast's ocean depths
An unusually large swarm of tremors is rocking the ocean floor off the west coast of Vancouver Island. Since Tuesday, 17 quakes in the four to five magnitude range centred about 200 kilometres west of Port Hardy have been detected. Earthquake scientist Garry Rogers with the Geological Survey of Canada said quake swarms happen several times a year in that area, but this one is lasting longer, and the earthquakes are larger, than normal. "It's just a reminder that we live in a very active area, and that immediately west of Vancouver Island is where new ocean crust is being born, and where we would call a very active geological environment." The largest so far has been a magnitude 5.2 quake on Aug. 27 at 1:17 p.m. PT, but likely none were felt by anyone on shore, said Rogers. "The earthquakes are too far off shore to be felt, and they are way too small to cause any tsunami or wave action," he said. A magnitude 3.4 quake on July 30 west of Seattle in Puget Sound was felt by residents of Vancouver Island.
Bron: CBC
An unusually large swarm of tremors is rocking the ocean floor off the west coast of Vancouver Island. Since Tuesday, 17 quakes in the four to five magnitude range centred about 200 kilometres west of Port Hardy have been detected. Earthquake scientist Garry Rogers with the Geological Survey of Canada said quake swarms happen several times a year in that area, but this one is lasting longer, and the earthquakes are larger, than normal. "It's just a reminder that we live in a very active area, and that immediately west of Vancouver Island is where new ocean crust is being born, and where we would call a very active geological environment." The largest so far has been a magnitude 5.2 quake on Aug. 27 at 1:17 p.m. PT, but likely none were felt by anyone on shore, said Rogers. "The earthquakes are too far off shore to be felt, and they are way too small to cause any tsunami or wave action," he said. A magnitude 3.4 quake on July 30 west of Seattle in Puget Sound was felt by residents of Vancouver Island.
Bron: CBC
Every cloud has a silver lining
6.1 quake strikes off western Canadian coast
Story Highlights
# Epicenter is almost 300 miles west-northwest of Vancouver
# About two dozen quakes with magnitude 4 or above have hit area in past 48 hours
# 6.1-quake capable of causing considerable damage
# Victoria is main city of Vancouver Island
A magnitude 6.1 earthquake struck at sea just west of Vancouver Island, Canada, on Thursday, according to the U.S. Geological Survey. The temblor's epicenter was about 95 miles (153 kilometers) west-southwest of Port Hardy, British Columbia, and about 293 miles (472 kilometers) west-northwest of Vancouver, British Columbia. A 6.1-magnitude earthquake is classified as "strong," the USGS Web site says, capable of causing considerable damage. Thursday's quake was the latest of about two dozen temblors of magnitude 4 or above to strike in the area in the past 48 hours, according to the USGS. A 5.2-magnitude quake was the largest of those, striking the same area Wednesday. "We're having a series in that area," Julie Martinez, a USGS geophysicist said. She said the number of earthquakes was not unusual. Seismologists told The Associated Press the quakes pose no tsunami threat and are unlikely to be felt on land. Vancouver Island sits off Canada's west coast. Its main city of Victoria sits at its southern end.
Bron: CNN
Magnitude 6.1
Date-Time
* Thursday, August 28, 2008 at 12:37:35 UTC
* Thursday, August 28, 2008 at 05:37:35 AM at epicenter
Location 50.218°N, 129.536°W
Depth 10 km (6.2 miles) set by location program
Region VANCOUVER ISLAND, CANADA REGION
Distances
* 153 km (95 miles) WSW (251°) from Port Hardy, BC, Canada
* 308 km (191 miles) W (276°) from Campbell River, British Columbia, Canada
* 412 km (256 miles) WNW (302°) from Neah Bay, WA
* 472 km (293 miles) WNW (285°) from Vancouver, British Columbia, Canada
Story Highlights
# Epicenter is almost 300 miles west-northwest of Vancouver
# About two dozen quakes with magnitude 4 or above have hit area in past 48 hours
# 6.1-quake capable of causing considerable damage
# Victoria is main city of Vancouver Island
A magnitude 6.1 earthquake struck at sea just west of Vancouver Island, Canada, on Thursday, according to the U.S. Geological Survey. The temblor's epicenter was about 95 miles (153 kilometers) west-southwest of Port Hardy, British Columbia, and about 293 miles (472 kilometers) west-northwest of Vancouver, British Columbia. A 6.1-magnitude earthquake is classified as "strong," the USGS Web site says, capable of causing considerable damage. Thursday's quake was the latest of about two dozen temblors of magnitude 4 or above to strike in the area in the past 48 hours, according to the USGS. A 5.2-magnitude quake was the largest of those, striking the same area Wednesday. "We're having a series in that area," Julie Martinez, a USGS geophysicist said. She said the number of earthquakes was not unusual. Seismologists told The Associated Press the quakes pose no tsunami threat and are unlikely to be felt on land. Vancouver Island sits off Canada's west coast. Its main city of Victoria sits at its southern end.
Bron: CNN
Magnitude 6.1
Date-Time
* Thursday, August 28, 2008 at 12:37:35 UTC
* Thursday, August 28, 2008 at 05:37:35 AM at epicenter
Location 50.218°N, 129.536°W
Depth 10 km (6.2 miles) set by location program
Region VANCOUVER ISLAND, CANADA REGION
Distances
* 153 km (95 miles) WSW (251°) from Port Hardy, BC, Canada
* 308 km (191 miles) W (276°) from Campbell River, British Columbia, Canada
* 412 km (256 miles) WNW (302°) from Neah Bay, WA
* 472 km (293 miles) WNW (285°) from Vancouver, British Columbia, Canada
Every cloud has a silver lining
Series Of Quakes Shaking Up B.C. Coast
Tremors In "Seismically Active" Region Too Small For Tsunami And Too Far To Be Felt On Land
(AP) A strong earthquake struck off Canada's west coast early Thursday near Vancouver Island. There were no immediate reports of major damage or injuries.
The epicenter of the magnitude-6.1 quake was 97 miles west of Port Hardy and 293 miles west northwest of Vancouver, the U.S. Geological Survey said. It struck at a depth of about 6 miles.
Geological Survey of Canada scientist Garry Rogers said there were no reports of injuries or damages and said it occurred too far off land for there to be any. He said it's normal activity for the region and there's nothing to be alarmed about.
The quake was the latest in a series of coastal tremors since Monday. Two quakes rattled the area Wednesday, both with magnitudes of around 5. There have been 18 quakes with a magnitude greater than four in the region this week.
Seismologists said the tremors are occurring in a "seismically active" region, and they are too far offshore to be felt on land and too small to generate a tsunami.
"Rarely a day goes by where we don't have an earthquake. Once a year we have a swarm in the high fours, maybe a five. Once a decade we have a six," Rogers said. "It's one of the most busiest earthquake areas in the world."
Rogers said new ocean crust is forming in the area and that's why it's so active geologically.
Bron:CBS News
Tremors In "Seismically Active" Region Too Small For Tsunami And Too Far To Be Felt On Land
(AP) A strong earthquake struck off Canada's west coast early Thursday near Vancouver Island. There were no immediate reports of major damage or injuries.
The epicenter of the magnitude-6.1 quake was 97 miles west of Port Hardy and 293 miles west northwest of Vancouver, the U.S. Geological Survey said. It struck at a depth of about 6 miles.
Geological Survey of Canada scientist Garry Rogers said there were no reports of injuries or damages and said it occurred too far off land for there to be any. He said it's normal activity for the region and there's nothing to be alarmed about.
The quake was the latest in a series of coastal tremors since Monday. Two quakes rattled the area Wednesday, both with magnitudes of around 5. There have been 18 quakes with a magnitude greater than four in the region this week.
Seismologists said the tremors are occurring in a "seismically active" region, and they are too far offshore to be felt on land and too small to generate a tsunami.
"Rarely a day goes by where we don't have an earthquake. Once a year we have a swarm in the high fours, maybe a five. Once a decade we have a six," Rogers said. "It's one of the most busiest earthquake areas in the world."
Rogers said new ocean crust is forming in the area and that's why it's so active geologically.
Bron:CBS News
