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A Map detailing all the numerous quakes on the west coast during the past month.
REPORTING · 29th August 2011
Merv Ritchie
Only major earthquakes are reported. Anything under 6.o on the Richter scale usually gets ignored, unless it is in the USA. Earlier this month Haida Gwaii experienced another quake greater than 4.0 and in fact there have been five rather significant tremors since the middle of May this year. Here is a list of all those measuring greater than a Richter scale measurement of 4.0.

• 2011-08-18: M=4.6 - south of Moresby Island, Haida Gwaii, BC
• 2011-07-29: M=4.0 - 205 km SSE of Queen Charlotte City, BC
• 2011-06-16: M=4.6 - 172 km SSE of Queen Charlotte City, BC
• 2011-06-03: M=4.3 - 81 km SSW of Queen Charlotte City, BC
• 2011-05-15: M=4.5 - 111 km SSE of Queen Charlotte City, BC

All of these plate movements occur on a fault line that extends north from Oregon at the junction of another regular tremor point. It is common to have a quake occur at both ends of this fault line within a short time span of each other.

Geologists, plate tectonic specialists, sometimes consider these constant small tremors a good thing. It is when they don’t slide and move that causes them concern. The belief is that if the plates are not moving, creating these minor tremors, they are stuck and will release with an enormous quake once the pressure builds great enough.

But this science is guess work at best. If predicting earthquakes was good Japan and New Zealand would have been better prepared.

We should all remain vigilant and prepared at all times. The best prediction, accepted by almost all scientists, is the Northwest Coast has been over due for a large quake for decades.

The “Ring of Fire” is the outer circumference of the Pacific Ocean. The Coastline of British Columbia, down through to California, is the only significant fracture zone of the Ring of Fire, which has not experienced a significant earthquake in the past hundred years. We are long overdue; waiting our turn.

Here is a list of what the USGS calls significant quakes since the beginning of this year.

Magnitude 7.0 NORTHERN PERU August 24, 2011
•Magnitude 5.8 VIRGINIA August 23, 2011
•Magnitude 5.3 COLORADO August 23, 2011
•Magnitude 4.6 COLORADO August 22, 2011
•Magnitude 7.0 VANUATU August 20, 2011
•Magnitude 7.1 VANUATU August 20, 2011
•Magnitude 6.3 EAST OF HONSHU, JAPAN August 19, 2011
•Magnitude 6.8 NORTH COAST NEW GUINEA, July 31, 2011
•Magnitude 6.7 SOUTH OF THE FIJI ISLANDS July 29, 2011
•Magnitude 6.1 KYRGYZSTAN July 19, 2011
•Magnitude 7.0 EAST OF HONSHU, JAPAN July 10, 2011
•Magnitude 7.6 KERMADEC ISLANDS REGION July 06, 2011
•Magnitude 7.2 ALEUTIAN ISLANDS, ALASKA June 24, 2011
•Magnitude 6.0 SOUTH ISLAND OF NEW ZEALAND June 13, 2011
•Magnitude 5.8 WESTERN TURKEY May 19, 2011
•Magnitude 5.1 SPAIN May 11, 2011
•Magnitude 6.8 LOYALTY ISLANDS May 10, 2011
•Magnitude 6.9 SOLOMON ISLANDS April 23, 2011
•Magnitude 6.6 EASTERN HONSHU, JAPAN April 11, 2011
•Magnitude 7.1 EAST OF HONSHU, JAPAN April 07, 2011
•Magnitude 6.5 VERACRUZ, MEXICO April 07, 2011
•Magnitude 6.7 SOUTH OF JAVA, INDONESIA April 03, 2011
•Magnitude 6.8 MYANMAR March 24, 2011
•Magnitude 6.6 EAST OF HONSHU, JAPAN March 22, 2011
•Magnitude 6.3 VANUATU March 17, 2011
•Magnitude 9.0 EAST OF HONSHU, JAPAN March 11, 2011
•Magnitude 5.4 MYANMAR-CHINA BORDER March 10, 2011
•Magnitude 6.5 PAPUA NEW GUINEA March 09, 2011
•Magnitude 7.2 EAST OF HONSHU, JAPAN March 09, 2011
•Magnitude 6.6 SOLOMON ISLANDS March 07, 2011
•Magnitude 6.5 S. SANDWICH ISLANDS March 06, 2011
•Magnitude 4.7 ARKANSAS February 28, 2011
•Magnitude 6.1 S. ISLAND NEW ZEALAND February 21, 2011
•Magnitude 4.1 ARKANSAS February 18, 2011
•Magnitude 6.6 OFFSHORE MAULE, CHILE February 14, 2011
•Magnitude 6.8 OFFSHORE BIO-BIO, CHILE February 11, 2011
•Magnitude 6.5 CELEBES SEA February 10, 2011
•Magnitude 7.2 SOUTHWESTERN PAKISTAN January 18, 2011
•Magnitude 7.0 LOYALTY ISLANDS January 13, 2011
•Magnitude 6.6 VANUATU January 09, 2011
•Magnitude 4.1 NORTHERN CALIFORNIA January 08, 2011
•Magnitude 7.1 ARAUCANIA, CHILE January 02, 2011
•Magnitude 7.0 SANTIAGO DEL ESTERO, ARGENTINA January 01, 2011
Many Quakes from missing
Comment by M. Craven on 29th August 2011
The list should include the 500+ 5.0 quakes my family has endured in suffered through in Japan. Japan is good at predicting quakes, I know this well. Even our cellphones have alarms built in with earthquake warnings.