5:10 PM: Felt Earthquake Reported Across Western Trinidad

A felt earthquake was reported. This post will be updated as more information is published by the relevant scientific and governmental organizations.

At approximately 5:10 PM Saturday 22nd June 2019 an earthquake was reportedly felt across parts of Western Trinidad. If you felt this earthquake, please report it to the Seismic Research Centre here.

This event was seismically confirmed as a signal was recorded at a seismometer in Grenville, Grenada. This event was reportedly felt around 5:10 PM this evening. This earthquake is likely less than magnitude 3.8, the threshold UWI Seismic Research Center uses to automatically post earthquake parameters onto their social media feeds.
This event was seismically confirmed as a signal was recorded at a seismometer in Grenville, Grenada. This event was reportedly felt around 5:10 PM this evening. This earthquake is likely less than magnitude 3.8, the threshold UWI Seismic Research Centre uses to automatically post earthquake parameters onto their social media feeds.

Persons reportedly felt shaking of some magnitude across Western Trinidad

We’re awaiting a preliminary report from the U.W.I. Seismic Research Centre for the location and depth. Note that preliminary solutions may also come in from FUNVISIS and the USGS.

Note that unless felt reports are received by U.W.I Seismic Research Centre (SRC), only earthquakes of magnitude 3.8 and larger are automatically posted to the SRC’s online platforms.

Across the globe, different seismic monitoring agencies use different methods, or several methods, for processing earthquake parameters. Each method has its limitations and will likely produce different results within the ranges of the uncertainty of that data. This is generally accepted within the scientific community. Hence, USGS’ or FUNVISIS’ parameters may differ from the UWI SRC’s preliminary information.

Note that across the globe, different seismic monitoring agencies use different methods, or several methods, for processing earthquake parameters. Each method has its limitations and will likely produce different results within the ranges of the uncertainty of that data. This is generally accepted within the scientific community.

Earthquakes *cannot* be predicted – meaning the precise time, date, magnitude, depth, etc. cannot be known ahead of time based on current research and technology.

Generally, in the Eastern Caribbean, a seismically active area, earthquakes up to M8.0 and greater are possible in the area, and this statement has been repeated by seismologists at the U.W.I. Seismic Research Centre for decades.

Each year, over 2,200 seismic events are recorded in the Eastern Caribbean. On average, the Eastern Caribbean has seen a pattern of major (M7.0-M7.9) quakes every 20 to 30 years. That pattern has stayed true. The last major (M7.0-7.9) quake occurred north of Martinique in 2007. 

Historical patterns indicate great earthquakes (M8.0+) on the Richter Scale have occurred every century or so in the region. The probability of another event at that level is high since the last >M8.0 earthquake occurred in 1843.

Now is the time to create or go over your earthquake preparedness plan and know what to do during, before and after an earthquake. See here for more details.

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