Osmussaar
... that the most powerful recorded earthquake in Estonia, measuring 4.7 magnitudes in Richter scale, occurred in 1976 near the Baltic Sea island of Osmussaar ?
... that the most powerful recorded <a href="./Earthquake" id="mwEcw" rel="mw:WikiLink" title="Earthquake">earthquake</a> in <a href="./Estonia" id="mwEc0" rel="mw:WikiLink" title="Estonia">Estonia</a>, measuring 4.7 magnitudes in <a href="./Richter_scale" id="mwEc4" rel="mw:WikiLink" title="Richter scale">Richter scale</a>, occurred in 1976 near the <a href="./Baltic_Sea" id="mwEc8" rel="mw:WikiLink" title="Baltic Sea">Baltic Sea</a> island of <b id="mwEdA"><a href="./Osmussaar" id="mwEdE" rel="mw:WikiLink" title="Osmussaar">Osmussaar</a></b> <i id="mwEdI">(pictured)</i>?