Colorado did not have seismographs prior to 1900, nor did many parts of the U.S. There are a number of different methods for calculating magnitude: Moment Magnitude, Richter Magnitude, Rayleigh Surface Wave Magnitude, and Gutenberg Body Wave Magnitude. Magnitude is always presented in numerals. Hypothetically, all seismographs around the world should yield the same magnitude for a given earthquake, no matter the distance from the epicenter. Magnitude is determined by measurements of recordings on seismographs. With our current state of knowledge, it is not possible to predict when or where, the next large earthquake might occur in Colorado.Д®arthquakes are measured in several ways: magnitude, intensity, and ground acceleration. There are many more faults in the state that could probably generate significant earthquakes, but have not received sufficient study, or documentation, to be included in the hazard map. The CGS conducts scientific studies of fault zones and past earthquakes while monitoring fault movements with a network of seismometers throughout Colorado.ДЇive faults in Colorado have received sufficient study to be included in the USGS National Seismic (Earthquake) Hazard Map (version 2018 NSHM), and three of those are listed as being capable of generating earthquakes of 7.0 magnitude, or greater. However, the state has experienced large natural (magnitude 6.5 or higher) and human-triggered (induced) earthquakes in recorded history and will continue to periodically experience large earthquakes in the future.Д«ecause fault movement causes earthquakes, it is important to study the thousands of faults in Colorado to determine whether they have moved in the recent geologic past or capable of moving again in the near future. Colorado experiences fewer and less frequent earthquakes on average than more seismically active states like California and Alaska. The active landscape of the state-with the still-rising mountains containing thousands of faults-features over 90 potentially active faults and more than 700 recorded earthquakes of magnitude 2.5 or higher since 1867. ColoradoвЂ™s high mountains are a result of uplift on faults (with associated earthquakes) that are part of the rift system. These waves can cause noticeable shaking at the surface and, in the case of large earthquakes, damage to roads, buildings, and other infrastructure that may pose a threat to public safety.Д¬olorado is considered an active tectonic province that is essentially being pulled apart where the Rio Grande Rift cuts north/south across the mountainous, central part of the state. The resulting earthquake releases energy in waves that travel through the earthвЂ™s crust. As the rocks on either side of the fault accumulate stress between them, they will eventually overcome friction and slip. This material may not be published, broadcast, rewritten or redistributed.Think you just felt an earthquake? Check out the USGS Latest Earthquakes Map.Д®arthquakes are caused by sudden movements of the earth along a fault. The official cause of the shaking and rumbling is not yet known.Д¬opyright 2022 Sunbeam Television Corp. 7News reached out to the base for an update, but we have not received a response.

Homestead Air Reserve Base said they were conducting training drills on Thursday, but not on Friday. вЂњI started getting a suspicion that it could have been a tremor, and suddenly, we started hearing a rumbling.вЂќ вЂњStarted rocking and getting worse and worse,вЂќ he said. James Haddad felt the shaking in Coral Springs.

вЂњI was doing Math work, and then, all of the sudden, it was just like a shake, like my chair shook,вЂќ Tanner said. вЂњThankfully, other people felt it too, so I knew I wasnвЂ™t crazy.вЂќ ItвЂ™s probably a truck,вЂ™ so we all came down and went outside, and there was no truck,вЂќ Bob said.

вЂњThe house shook about twice, and the kids, who were on online school, came running out and said вЂWhat was that?вЂ™ вЂI have no idea. The Hopkins family was at home in Weston, with Bob Hopkins working virtually and his son, Tanner Hopkins, completing his Math homework. You can feel it from the ground, too, yes.вЂќ Instead, Pursley suggests the reports are more consistent with a sonic boom, which occurs when an aircraft breaks the sound barrier. We do not think this is an earthquake because the seismometers would very likely show us an earthquake, especially since it was felt over such a broad region.вЂќ вЂњWe do not see any recorded earthquakes in the area. вЂњAt this point, the USGS does not know the source of the reported shaking,вЂќ geophysicist Jana Pursley said. Geological Survey said they have gotten multiple reports of people feeling shaking, but they have checked and rechecked their seismometers and have no reports of seismic activity.

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