After the USA got lucky last week more than 400 after-shocks have rattled the Gulf Of Alaska since Tuesday’s powerful quake
TheBigWobble.org
Tuesday, 30 January 2018
USGS
More than 400 after-shocks have rattled the Gulf Of Alaska after the powerful mag 7.9 rocked Kodiak Island on Tuesday with many of them significant and some in the mid 5 magnitude.
The huge earthquake of magnitude 8.2, reduced by USGS to a mag 7.9 struck 256 km (157 miles) southeast of Chiniak, Alaska at a depth of 10 km n Tuesday morning, see below.
With American west coast residents well aware a “big one” is guaranteed probably sooner rather than later Tuesdays massive quake came as quite a shock, especially as a tsunami warning, was issued for the entire west coast which turned out to be a glitch from data sent by an Alaskan buoy at station 46410.
On Friday morning the US West Coast rode their luck once again when a mag 5.8 – 173km struck W of Ferndale, California with a mag 5.0 after-shock, which could have been much worse.
“The Big One” is well overdue, according to Wikipedia, a study published in 2006 in the journal “Nature” found that the San Andreas fault has reached a sufficient stress level for an earthquake of magnitude greater than 7.0.
This study also found that the risk of a large earthquake may be increasing more rapidly than scientists had previously believed.
Whats more important the M 7.9 – 280km SE of Kodiak, Alaska on Tuesday didn’t cause any injuries or cause any damage!
Incredible considering the shallow depth of the powerful Alaskan quake.
The Rest…HERE
