“Humans make great seismologists — we are pretty sensitive. We feel every little bump that goes off.”
There were two earthquakes felt by the residents in Wandilo, Australia, a city located north-west of Mount Gambier. The tremors were so small, they went undetected by the seismograph. Rather, the scientists in charge of the Geoscience Australia website learned about the earthquakes from residents who reported it on the webpage. The scientists estimate that the initial tremor could be felt about 25 kilometers away from the estimated epicenter.
The second earthquake, occurring at roughly 5pm (local time) may have just been a secondary quake linked to the first one. The data from the monitors will let them know if it was a true, independent case or not.
This is the second (and possibly third) earthquake of the year for this area. The first occurrence was in early February.