Monday, August 29, 2016

8/29/16- NATURAL HAZARDS- BLAME IT ON TECTONICS

This week we are exploring plate tectonics and how the location of each country respect to the plate boundaries relates directly with their natural hazards -like volcanoes or earthquakes-

In the past days the center of Italy has suffered devastating shakes -news here-. The devastation comes from the poor construction standards on the houses close to the epicenter, not because it was an inactive area..
nobody that knows where the plates are located was surprised by the event.

In the US, the NOAA map shows clearly how the Easter US is a passive margin and the Western side of the country is a very active one, with the Pacific Plate, Cocos, Juan de Fuca plates connecting to the North American plate. Not a surprise we are on the ‘Ring of Fire’, where a lot of the volcanic and seismic activity happens!

Of course, there are a few exceptions, like the activity of Hawaii (hot spot) or the New Madrid area (ancient rift), both not at plate boundaries, but that will be another post another time.

We might not know when events like volcanic eruptions or big earthquakes will happen, but if you know your Tectonics, you definitely know where the do!

All for now-


Other Plate Maps found at USGS or Esri: interactive


Thursday, August 4, 2016

8/4/2016- VISUALIZING GLOBAL NATURAL DISASTERS

Now that the hurricane season is here, is a good idea to check the national hurricane center in case you are planning any travelling in certain parts of the world. We also have numerous news of flash floods and flooding events all around the planet and if you are paying attention, these are very frequent.
To help prepare and/or visualize worldwide natural catastrophes, there are currently several websites you can use, most of them based on Google maps, some still beta, and most of them including tectonic plates-which makes perfect sense to geologists-. I have included a few here.
-The National Association of Radio Distress-Signalling and Infocommunications (RSOE) operates Emergency and Disaster Information Service (EDIS) within the frame of his own web site which has the objective to monitor and document all the events on Earth which may cause disaster or emergency.

-The NOAA viewer website is also useful to point out how active the Ring of Fire is. Also, their billion-dollar weather and climate disaster map is very telling as well –see image on the left-.

-Another resource that is very useful is the information from insurance companies. An example of the losses of 2015 is below, from artemis.

As you can see, catastrophes are everywhere and that is why we will be exploring all these in the Fall during our Geol9 course at MPC.

Should be fun.

Buckle up-