7.7 M Earthquake Hits Off Masset Island, Canada

A magnitude 7.7 earthquake hit off of Masset Island, Canada, near 8 pm local time on Saturday the 27th of October. The quake occurred as a result of oblique-thrust faulting near the plate boundary between the Pacific and North America plates, and is likely associated the Queen Charlotte fault system offshore of British Columbia. A tsunami warning was issued for the state of Hawaii, but has now been cancelled.

For more information about the quake, go to the USGS earthquake hazards page.


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Atmospheric CO2 Level Tops 400 ppm

During the week of May 13th, the CO2 level at the Mauna Loa Observatory in Hawaii topped 400 ppm repeatedly. Daily levels of CO2 can vary due to weather, and there are seasonal trends as well.

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Here is a link to the one-page bill:

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