Please Explain: Tsunamis

Friday, March 11, 2011

This morning, an 8.9 magnitude earthquake occured 230 miles northeast of Tokyo, Japan, causing a large tsunami. The full extent of the impact of the tsunami is not yet known, and there are tsunami alerts for Russia, Hawaii, and the West Coast of the United States. On today's Please Explain, we'll try to answer all of your questions about tsunamis with Humboldt University Professor of Geology Lori Dengler who is currently at the National Weather Service monitoring the situation, and Geoff Abers, a seismologist at the Lamont Doherty Center at Columbia University. 


Geoff Abers and Lori Dengler

Comments [6]

Amy from Manhattan

Is a tsunami likely to be amplified more as it comes in over a steeper or a gentler shoreline?

Mar. 11 2011 01:42 PM

Being from the Pacific Northwest, I grew up hearing about "The Big Earthquake" that is bound to strike there sometime soon. I know some about subduction zones and why the Northwest is so prone to earthquakes. Could your guests explain if it's at all possible to monitor and map the sea floor in order to predict when these subduction "catches" and "snaps" might happen?



Mar. 11 2011 01:40 PM
david from ditmas park

Can an earthquake across the globe trigger another, weeks months later in another place on earth?

Mar. 11 2011 01:37 PM
Laura from Princeton

Could your guests talk about infrastructure in place throughout Japan to protect people from the effects of a tsunami? How is our infrastructure in the United States different from or similar to systems that have been put in place in Japan?

Mar. 11 2011 01:35 PM

Hi John -

We've switched things up at the last minute! We'll be doing digital photography in a few weeks, and we'll save your question. Thanks for writing in!

Mar. 11 2011 11:50 AM
John Gee from ex-NY'er in northeast Pa

I understand the immediacy and convenience of digital for news organizations, but I've heard a few pro's who are not working against a deadline say they are spending too much time with the computer 'fixing' their photos. Does digital make one lazy??
So where is the 'win' for the pro? Maybe digital is only meant to be for the masses? (ie: point and shoot and immediate gratification like a Polaroid)
I mean, would Joel Meyerwitz sacrifice his 8x10 view camera? I already know that answer! I still shoot and develop my own black and white. There is absolutely NO tactile exchange to digital!!!! It has no smell and you can't 'touch' it. So much for progress!!! Thank god film photography is still taught in colleges!! Maybe there is hope.
I'll be buried with my F3's!!!
Shout out to Bruce Habbeggar - the former Photo director at City College Art Dept!!

Mar. 11 2011 10:34 AM

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