earthquakes

     

An earthquake is the result of a suden release of energy in the Earth's crust that creates seismic waves. Earthquakes are recorded with a seismometer, also known as a seismograph. The moment magnitude of an earthquake is conventionally reported, or the related and mostly obsolete Richter magnitude, with magnitude 3 or lower earthquakes being mostly imperceptible and magnitude 7 causing serious damage over large areas. Intensity of shaking is measured on the modified Mercalli scale.

Trivia about earthquakes

  • The modified Mercalli scale ranks these 1-12: 1 - not felt except by few, 12 - total destruction
  • In '06 these events devastated San Francisco in April & Valparaiso, Chile in August
  • Dr Lucy Jones is part of the "Hazards Team" for these events at the U.S. Geological Survey in Pasadena
  • Hot California is famous for these temblors, making it a shake & bake state
  • The Mercalli scale measures the intensity of these from I to XII
  • ...that's built to withstand these, as mandated in Los Angeles building code section 8805
  • In 1931 2 Americans modified the Mercalli scale to measure the intensity of these in California
  • Seismology studies the seismic waves produced by these plate shifts
  • They're recorded on seismographs
  • Irish geologist Richard Oldham discovered that these events have primary & secondary waves

Tweets about earthquakes

  • frack it
  • #Sismo M 1.0 - 52km S of Lone Pine, California: Time2014-07-16 09:38:21 UTC2014-07-16 02:38:21 -07:0... #CSismica
  • #Sismo M 1.6 - 12km SW of Huron, California: Time2014-07-16 09:21:24 UTC2014-07-16 02:21:24 -07:00 a... #CSismica
  • #Earthquake #Sismo M 1.0 - 52km S of Lone Pine, California: Time2014-07-16 09:38:21 UTC2014-07-16 02:38:21 -07...
  • #Earthquake #Sismo M 1.6 - 12km SW of Huron, California: Time2014-07-16 09:21:24 UTC2014-07-16 02:21:24 -07:00...
  • #Sismo M 1.0 - 52km S of Lone Pine, California: Time2014-07-16 09:38:21 UTC2014-07-16 02:38:21 -07:00 at e... #CS
  • #Sismo M 1.6 - 12km SW of Huron, California: Time2014-07-16 09:21:24 UTC2014-07-16 02:21:24 -07:00 at epic... #CS
  • Light mag. 4.5 earthquake - Southern Iran on Wednesday, 16 July 2014
  • #eartquake M 1.6 - 12km SW of Huron, California
  • #eartquake M 3.0 - 21km WSW of Cantwell, Alaska
  • #eartquake M 1.0 - 52km S of Lone Pine, California
  • #eartquake M 1.4 - 70km E of Cape Yakataga, Alaska
  • #eartquake M 1.2 - 41km WSW of Cantwell, Alaska
  • #Earthquake M 3.0, 21km WSW of Cantwell, Alaska: Wednesday, July 16, 2014 08:33:19 UTCWednesday, July 16, 2014...
  • RT @KennettDems: #Fracking and earthquakes. Coincidence or correlation? You decide! Fracking States See Surge In Earthquakes
  • Looking For The Next Oil Boom? Follow The Tech - Earthquakes Are Us! Pulp the rocks and feel the Earth move!
  • #Temblor♨ M 3.0, 21km WSW of Cantwell, Alaska #Earthquake #Sismo
  • M3 - 21km WSW of Cantwell, Alaska 16/07/14 04:33:19 EDT [UD: 16/07/14 05:43:59 EDT] Depth: 95km (59.03mi) #hmrd
  • 3.0 earthquake occurred at 16 Jul 2014 08:33:19 UTC, 21 km (13 mi) WSW of Cantwell, Alaska.
  • 【#USGS #alert】 M 1.6, Central California: July 16, 2014 09:21:24 GMT #earthquake #tsunami #prayfromjapan
  • As of June 2014, there have been more earthquakes in Oklahoma than anywhere else in the continental United States.
  • 5.0 earthquake, Fox Islands, Aleutian Islands, Alaska. Jul 15 22:13 at epicenter (18m ago, depth 50km).
  • Seven earthquakes in 14 hours. Something is up in Oklahoma #Fracking
  • Oklahoma experienced 109 earthquakes measuring 3.0 or greater last year, a 5000% increase
  • Does fracking cause big earthquakes? Science says NO, Journalists say YES more than Molly Bloom
  • Half of all 3.0+ earthquakes in US now occur in Oklahoma, but absolutely coincidental to all our huge underground explosions, say frackers
  • Of the Seven Wonders of the World, 3 fell due to earthquakes, 2 due to fires, 1 probably never existed, and only one stands today.
  • There were seven earthquakes in Oklahoma in the span of 14 hours. Just saying.
  • Oklahoma hit by eight earthquakes in two days. Is the fracking industry to blame?
  • Oklahoma continues to see an incredible number of earthquakes
  • Fracking? 11 earthquakes hit central Oklahoma over weekend
  • 11 earthquakes hit fracking-heavy central Oklahoma over weekend
  • 8 small earthquakes shake Oklahoma as fracking critics grumble -
  • Does fracking cause big earthquakes? Shorter answer: No. Longer answer: No. Media answer: Yes.
  • This state has more #earthquakes than #California with more than 200 this year: via @CNNVideo
  • RT @TIME: Is fracking to blame for Oklahoma’s spate of weekend earthquakes?
  • RT @FoxNews: 7 small earthquakes strike Oklahoma over the weekend, US Geological Survey says
  • แผ่นดินไหว CENTRAL CALIFORNIA ขนาด 1.6 ลึก 6.00 กม. เมื่อ 14 กรกฎาคม 2014 21.00.39 PM
  • Does #fracking cause big earthquakes in #OK #CA elsewhere? Science, @BarackObama Dept of Interior says no
  • RT @Jesus_and_Love: Matt 24:7 4 nation will rise against nation, & kingdom against kingdom.& there will be famines, pestilences,& earthquak…
  • NEW THIS MORNING: 7 earthquakes have been reported in Oklahoma in the past two days. The area doesn't usually lots of quakes.
  • Matt 24:7 4 nation will rise against nation, & kingdom against kingdom.& there will be famines, pestilences,& earthquakes in various places
  • RT @billmckibben: Fracking technology really is ground-breaking: OK records 7 earthquakes over the weekend
  • RT @tokaiama: M6.3 - 86km SSE of Pondaguitan, Philippines 2014-07-14 08:00:00 UTC フィリピン 今日17時くらい
  • RT @terremotolive: Último Sismo M 5.5 - 162km SSW of Camana, Peru: PAGER - GREEN ShakeMap - III DYFI? - ITim... #Ear…
  • RT @terremotolive: Último Sismo M 6.4 - 83km SSE of Pondaguitan, Philippines: ShakeMap - VII DYFI? - IVTime2... #Ear…
  • Oklahoma experiences 7 earthquakes in 14 hours over weekend via @dailykos
  • USGS reports a M1.6 #earthquake 51km S of Lone Pine, California on 7/14/14 @ 14:00:39 UTC #quake
  • RT @alisonannyoung: USGS: 7 small earthquakes shake central Oklahoma over weekend. Some suspect increase due to hydraulic fracturing. http…
  • RT @terremotolive: Último Sismo M 6.1 - 22km W of Iquique, Chile: PAGER - GREEN ShakeMap - VI DYFI? - VITime... #Ear…