Reference Article

from Wikipedia, the free encyclopedia

Richter magnitude scale

The Richter magnitude test scale (or more correctly local magnitude ML scale) assigns a single number to quantify the size of an earthquake.

It is a base-10 logarithmic scale obtained by calculating the logarithm of the combined horizontal amplitude of the largest displacement from zero on a seismometer output.

Note: This article excerpts material from the Wikipedia article "Richter magnitude scale", which is released under the GNU Free Documentation License.

See the following related content on ScienceDaily:


Related Videos

last updated on 2014-10-20 at 1:27 am EDT

The Netherlands: Shaken Up

The Netherlands: Shaken Up

Deutsche Welle (June 19, 2013) No other land in Europe produces as much natural gas as the Netherlands. But this has come at a price for the people who live there. Drilling is causing more and more earthquakes - and stronger ones too.People in Groningen - a densely populated area in the northern Netherlands - live directly above Europe's biggest natural gas field. They've got used to the odd rumble or two, but this year alone 20 earthquakes have shaken the region. Now The Dutch Oil Company (NAM) has announced it wants to increase its rate of gas extraction. Thus far, the quakes have been relatively low in magnitude, but scientists warn this is likely to change. Angry homeowners, complaining of cracked walls and roofs, are demanding the plans be reconsidered.
Powered by NewsLook.com
Satellite Imagery Shows Pakistan's New 'Earthquake Island'

Satellite Imagery Shows Pakistan's New 'Earthquake Island'

Newsy (Oct. 2, 2013) A new island has emerged off Pakistan's coastline as a result of the deadly magnitude-7.7 earthquake last week.
Powered by NewsLook.com
A Closer Look at Pakistan's Earthquake Island

A Closer Look at Pakistan's Earthquake Island

Reuters (Sep. 26, 2013) After a 7.7 magnitude earthquake hit a remote province of Pakistan Tuesday, a new island emerges in the Arabian Sea, but this isn't the first island created by an earthquake... Gavino Garay reports.
Powered by NewsLook.com
Big Data Weather: Tracking Tornadoes Goes High Tech

Big Data Weather: Tracking Tornadoes Goes High Tech

FORA.tv (May 9, 2013) Kelvin Droegemeier's research involves the dynamics and predictability of severe thunderstorms and tornadoes. He helped pioneer the science of storm-scale numerical weather forecasting, leading the early development of the world's first atmospheric computer model capable of assimilating Doppler radar and other data for explicitly predicting high-impact local weather such as individual thunderstorms. High performance computing has played a key role in Droegemeier's career as an educator and scientist, and during the past decade he helped establish two supercomputing centers at the University of Oklahoma and served on NSF's Blue Ribbon Panel on Cyberinfrastructure.
Powered by NewsLook.com

Related Stories


Share This



Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:

Breaking News:
from the past week

In Other News

... from NewsDaily.com

Science News

Health News

Environment News

Technology News



Save/Print:
Share:

Free Subscriptions


Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

Get Social & Mobile


Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

Have Feedback?


Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
Mobile: iPhone Android Web
Follow: Facebook Twitter Google+
Subscribe: RSS Feeds Email Newsletters
Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins