Moore, Oklahoma Tornado: Understanding the Wind and Storms

NASA recorded this image of the Oklahoma superstorms from space. Image by NASA

Why does Oklahoma have so many tornadoes? The term ‘Tornado Alley’ isn’t just a joke, the area really is prone to twisters, due to a number of factors.

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Chile, Kamchatka and California: Earthquakes in the Week of 15-21 May 2013

The week's earthquakes, 15-21 May. Image credit: USGS

This has been a busy week, in terms of earth tremors, with over 1500 registered seismic events recorded. What were the most significant quakes of the week?

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GPS Data May Improve Tsunami Warnings, New Study Shows

Pattern of waves generated by the 2011 Japan tsunami. Image credit: NOAA

Tsunamis are difficult to predict, but strike fast and can be deadly – so how to evacuate efficiently? GPS technology could be the answer for high-risk coastal areas.

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Pavlof Volcano, Alaska Erupts: Placed on Orange Watch Alert: May 2013

The May 2013 eruption of Pavlof volcano. Image credit: Brandon Wilson

Pavlof, the Alaskan volcano, is erupting. What does the orange watch alert status mean, and how bad is the volcanic eruption?

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Increased Level of Alert as Popocatépetl Volcano, Mexico, Erupts

Popacatepetl and Mexico City. Image credit: Jorge 2701

Popocatépetl – Mexico’s volcano that’s in the process of erupting – has a history of explosive eruptions. How dangerous is this volcano, based on the current alert?

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