On October 15th of 2019, an earthquake with a magnitude of 4.5 was felt widely in the city of San Francisco at the time of 10.33 pm on Monday. The epicentre of the earthquake was at the walnut creek and in the pleasant hill area.
According to USGS, there is a 2 percent chance of another earthquake with a magnitude of over 4.5 in the coming week. Considering the observed shaking, the scientists came to the conclusion that there won’t be major structural damage. The depth of the earthquake was 9 miles underneath the surface, and this was the reason why the shaking intensity at the surface was quite low.
Now if we keep in track of the data projected by Earthquake track, there have been 10 earthquakes of the magnitude 1.5 in San Francisco bay area in last 24 hours
- 15 in the past 7 days
- 70 in the past 30 days
- In last year it was 404
According to PG&E and Contra Costa fire, there were no reports on any serious injury or damages and talking about the quakes they were felt throughout the Bay Area. Following this earthquake, one seismologist has warned this could be a precursor to a larger earthquake.
Seismologist Lucy Jones said on Twitter: “Because any quake can be a foreshock, there’s a slight increase in the chance of a bigger quake for the next few days, at the same location near the Calaveras fault.”
Now, if we look back at the past record, the last time when the earthquake exceeds the mark of 4.5 magnitudes was in 2014 when the magnitude was 6 at South Napa. In the year of 1906, when the earthquake exceeds the mark of magnitude 7, which lead to the destruction of 80 percent of the town and 3000 people lost their life.