Earthquake Info

Presented by City of Irving

House Bill 2932
While earthquakes are relatively new to Irving, they are not new to the state of Texas. Understanding that earthquakes are a state issue, City of Irving representatives traveled to Austin and met with Irving’s legislative delegation as well as the governor’s office. At the request of the City of Irving, State Rep. Rafael Anchia has filed a bill on our behalf identifying the University of Texas at Austin’s Bureau of Economic Geology (BEG) as the organization to study earthquakes and land shifting in Texas. HB 2932 also requires the BEG to:

  • Focus on any known series of earthquakes and new or developing fault lines.
  • Identify potential causes of seismic activity, natural and man-made.
  • Identify necessary equipment for the study.
  • Provide hazard assessments in coordination with the Division of Emergency Management and local officials.
  • Report of this and any other relevant information once every even-numbered year to the governor, legislative committees with jurisdiction over finance, public safety and urban affairs and any other committees or agencies deemed relevant to the discussion.
Most Recent Tremor
April 2, 2015, 11:28 p.m. – M2.4
View details
Information from the City of Irving 

To read the entire bill, click here.

HB 2932 is expected to be heard in committee by late April.

Funding $2.5 million
City of Irving also is supporting the allocation of $2.5 million for TexNet, a statewide system to study seismic activity. The proposal currently is included in the House version of the budget bill (HB 1) as part of the University of Texas at Austin appropriation and is designated for the 106-year-old Bureau of Economic Geology (BEG) for equipment, including 22 permanent monitors across the state and 36 temporary monitors that could be deployed in sets of 12 as activity warrants.

The allocation is not contained in the Senate version at this time.

City lobbyists are committed to getting this funding included in the final state budget after the house-Senate budget conference in May.

SMU Identifies Epicenter Locations
Southern Methodist University seismologists have identified earthquake epicenters from 11 seismometers deployed around the area in early January 2015. Of 27 earthquakes recorded between Jan. 1 and March 7:

  • Twenty-three were located in Dallas.
  • Four were located in Irving.
  • None occurred on the Texas Stadium site.
North Texas Earthquake Locations - Updated March 9 2015Irving has experienced tremors since March 7 and will update the epicenter locations as soon as we receive them from SMU.

How do we know Southern Methodist University’s information is correct?

SMU information is specific. When earthquakes occur, the 11 locally installed seismometers gather instantaneous data and telemeter that data to SMU for analysis. Scientists study the data and report epicenter coordinates once they identify the locations.

More Resources
Residents are highly encouraged to learn more about earthquakes. Below are helpful resources:
Southern Methodist University’s preliminary report released Feb. 6, 2015.
U.S. Geological Survey – U.S. agency that monitors seismic activity.
Texas Railroad Commission – State agency that oversees drilling.
Federal Emergency Management Agency (FEMA) – U.S. disaster preparedness agency.

The City of Irving understands that residents have questions and concerns related to the earthquakes. It has gathered the information below to share with the community. All of these resources and more can be found online at cityofirving.org/earthquakes.

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