![]() A century later, Kalamata was hit by another strong earthquake w2, this time of magnitude 6.0. In 1886, a severe earthquake of magnitude 7.5 on the Richter scale struck Filiatra w1 ( figure 2). The district of Messinia, where our school is located, has a history of major earthquakes. Monitoring local earthquakesĮarthquakes are a daily occurrence in Greece (figure 1), sitting as it does at the boundary of two tectonic plates. By measuring the time that the seismic waves take to arrive at seismographs, as well as recording the amplitude and duration of the waves, we can calculate the magnitude of the earthquake and determine its epicentre. These waves can be detected and recorded by instruments called seismographs, which are often sited at great distances from the earthquake. Each tremor produces different types of vibration, or seismic waves, which travel through Earth’s interior with different velocities. Some earthquakes may be so slight as to be practically unnoticeable, but they can still be recorded. But did you know that 2011 also saw earthquakes in Finland, Belgium and the Czech Republic? In 2011, the earthquakes that caused the Fukushima disaster in Japan, killed thousands in Turkey and devastated Christchurch, New Zealand, made the headlines. Image courtesy of Jeffreyw /Įarthquakes occur around the world all the time. Did you know that you can use old hi-fi speakers to detect earthquakes? And also carry out some simple earthquake experiments in the classroom? Here’s how. ![]()
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