Discover and read the best of Twitter Threads about #Liquefaction
Most recents (2)
(1) Thread: Today's #earthquake #aftershock near Alaska.
I survived an EQ on 2/22/11 in Christchurch, NZ in which 185 people died and the city's downtown and coastal areas were destroyed. We're _still_ rebuilding.
Here's reliable info about today:
earthquake.usgs.gov/earthquakes/ev…
I survived an EQ on 2/22/11 in Christchurch, NZ in which 185 people died and the city's downtown and coastal areas were destroyed. We're _still_ rebuilding.
Here's reliable info about today:
earthquake.usgs.gov/earthquakes/ev…
(2) As usual, Twitter was filled with anxious tweets from folk asking how bad today's earthquake and potential tsunami threat were.
Tsunami info: tsunami.gov
Earthquake info: usgs.gov
Tsunami info: tsunami.gov
Earthquake info: usgs.gov
(3) The (mild) tsunami watch (not an alert) has now been cancelled.
Damaging tsunami near Alaska are extremely rare. Still, everyone there should educate themselves about what to do.
There are some rules of thumb that can allay fear.
Damaging tsunami near Alaska are extremely rare. Still, everyone there should educate themselves about what to do.
There are some rules of thumb that can allay fear.
#ShakeAlert focuses on eq shaking which is controlled by 3 main factors: magnitude, distance from the rupturing fault, and local ground conditions. These factors play a role in how hard and for how long a region will shake. (1/5)
During an earthquake, loose, soft soil will shake harder and longer than hard rock. Valleys will shake harder than mountains because of their sediment fill. Watch this video from @IRIS_EPO (2/5)
Liquefaction occurs when loosely packed, water-logged sediments at/near the surface lose their strength in response to strong ground shaking. Liquefaction occurring beneath buildings and other structures can cause major damage during earthquakes. (3/5)
