The Trembling Earth

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Tag Archives: terremoto

Earthquake Alert App for Mexico City residents

Después de dos temblores grandes sentido en la Ciudad de México, el gobierno ha publicado una “app” que les alerta a los residentes del Distrito Federal cuando están grabado los señales sísmicas de un temblor grande. Porque muchos de los temblores sentido en el Distrito Federal se originan en la costa, hay mucho tiempo (algunos 30-60 segundos) para protegerse en la ciudad antes de tiembla. La aplicación está disponible solo para usuarios de los teléfonos BlackBerry, pero es gratis. Hay más información y la app está disponible del gobierno aqui: http://www.caepccm.df.gob.mx/appalertasismica

Okay so I tried. Parece que muchas personas ven este sitio desde México a causa de estas noticias, así traté de usar mi español rudimentario para anunciarlas.

For those of you north of the border,

After two big earthquakes that shook Mexico City–a M7.4 on April 20 and a M6.0 on April 2–the Mexican government has released a very timely app that alerts residents of the capitol city to impending shaking. It’s based on the same system that provided warning to the congresspeople in the 20 April quake. The app is available only for BlackBerries right now, but the developers are open to other platforms provided the necessary speed for dissemination. The app can be downloaded for free from the Mexican government at the link above.

Here are detailed new releases:

http://www.bbc.com/news/technology-17609688

http://www.economist.com/blogs/americasview/2012/04/earthquake-warnings-mexico-city

This comes closely on the heels of a similar release in New Zealand that alerts residents to the magnitude and location of a quake immediately after it happens, but both countries lag well behind Japan, where the widespread adoption of mobile early-warning technology predated the Tohoku earthquake.

Deep earthquake rumbles Chile

On March 25, 2012 a magnitude 7.1 earthquake struck central Chile–the same region that was rocked in 2010 by an the Great 8.8 quake. This one was much smaller than that, and at a depth of 34km was more mild at the surface than it could have been, but it nonetheless walloped the region just before dusk on Monday, and plenty of people recorded it. In fact, it interrupted a soccer match between two Chilean first-division club teams, although the players didn’t much care.

Below is a sampling of footage from elsewhere in Chile.

Dogs and people are alarmed, and the plants and houses jostling sure make a lot of noise. As the shaking winds down you hear all the car and house alarms set off by the temblor.

 

The sound of their apartments rattling dominates this sunset scene in the city of Talca:

 

In what may be the most dramatic scene from this quake, a mall-goer captures the chaotic noise and panic of the earthquake shaking a mall full of people. Despite the relatively modest shaking, the sound of so much rattling overwhelms the situation, and the rush to leave the building means that emergency procedures must still function properly or there’d be a different disaster to contend with.

 

If you watch those on YouTube you’ll find a multitude of others in the “related videos” but they’re mostly of poorer quality, so I decided I’d leave you with those three… the best picks. The Chileans are fine, and there was no remarkable tsunami, so it wound up being simply a firm reminder of the forces beneath their feet.

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