Nepal earthquake, magnitude 7.3, strikes near Everest

http://www.bbc.com/news/world-asia-32701385

by illuminek • 11 years ago

105 17 11 years ago

bbc.com

illuminek2• 11 years ago

Aftershocks felt, there were at least 2. I ll call them major ones. I was sitting on 4th floor. It felt very strong.

spacefight• 11 years ago

Yes, 5.6 and 6.3 after 7.4.

Source: https://twitter.com/USGSBigQuakes

dredmorbius• 11 years ago

What's your location? Distance from initial epicenter?

chrisra• 11 years ago

A magnitude 7.8 earthquake is 2.511 times bigger than a magnitude 7.4 earthquake on a seismogram, but is 3.981 times stronger (energy release).

via http://earthquake.usgs.gov/learn/topics/calculator.php

illuminek2• 11 years ago

I did not quite understand "3.981 times stronger (energy release)", but god bless everyone.

Swizec• 11 years ago

The Richter scale is exponential. According to chrisra a 7.8 earthquake release almost 4x the energy of a 7.4 quake.

I didn't run the numbers, but it seems plausible the difference would be that big.

According to Wikipedia[1] a 7.5 quake releases 11 petajoules of energy, while a 7.8 quake release 32 petajoules.

[1] http://en.wikipedia.org/wiki/Richter_magnitude_scale#Example...

th0br0• 11 years ago

The Richter scale is logarithmic and therefore, a doubling of values is not equivalent to a doubling of force.

buro9• 11 years ago

Which doesn't account for the fact that this one is shallower than the previous earthquake. Shallower earthquakes create considerably more damage.

samikc• 11 years ago

Writing this from Kolkata (India). We were asked to evacuate the office building, as it was shaking. Just got an all clear to get back in.

God bless everyone.

dschiptsov• 11 years ago

That could be quite bad, because vast majority of houses in the area of Namche Bazaar has been built without steel-and-concrete reinforcement - just stones and cement, due to lack of motorable roads in Sulukhumbu region to supply steel and other building materials.

eliaspro• 11 years ago

Please help the OSM HOT [1] team to map the regions struck by the earthquake. Without proper/up-to-date maps, coordinating emergency efforts is hardly possible.

[1] http://wiki.openstreetmap.org/wiki/2015_Nepal_earthquake

legulere• 11 years ago

Please get used to how OSM works before starting to map. There has been lots of bad data added by new people to OSM in Nepal recently. Cleaning up may be more work than adding new.

nabaraz2• 11 years ago

Can't believe another earthquake has hit Nepal and it's even worse. Please pray for the people of Nepal and donate. A little can make all the difference.

frabcus• 11 years ago

Lots of Nepal Earthquake datasets (including map of new quake) on the Humanitarian Data Exchange:

https://data.hdx.rwlabs.org/nepal-earthquake

Nepal earthquake, magnitude 7.3, strikes near Everest

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