Panic Selling in Silver

$34.61 was the 200-day EMA for $SLV on the daily chart, which was suppose to provide some support.  However, $SLV is now trading right at $30.  What is significant about that price?  According to the long-term Point & Figure Chart for $SLV, $30 is right on its "Bullish Support Line" that goes back to 2009.  If that support does not hold, $17-18 might be the next support levels in this stage of panic selling.