TONGA

<body topmargin=0 leftmargin=0 marginheight=0 marginwidth=0> <table cellpadding=0 cellspacing=0 border=0><tr> <td valign="top" colspan=2 height=90 BGCOLOR="#006699" TEXT="#080000" background="0a9fd5a3.jpg"> <div> <FONT SIZE="6" COLOR="#FF0000" FACE="Arial" ><B><IMG SRC="0b1c52d0.gif" border=0 width="197" height="45" ALIGN="BOTTOM" HSPACE="0" VSPACE="0"></B></FONT><B>  </B><B> |     </B><A HREF="index.htm" TARGET="_top" TITLE=" "><U><B>home</B></U></A><B>                                                       </B><FONT SIZE="7" COLOR="#FF0000" FACE="Arial" ><B>AstroGeoData</B></FONT></div> <div> <A HREF="id130.htm" TARGET="_top" TITLE="Papua New Guinea"><U>Papua New Guinea</U></A>   |   <A HREF="id153.htm" TARGET="_top" TITLE="SOLOMON ISLANDS"><U>SOLOMON ISLANDS</U></A>   |   <A HREF="id154.htm" TARGET="_top" TITLE="VANUATU"><U>VANUATU</U></A>   |   <A HREF="id129.htm" TARGET="_top" TITLE="BANDA SEA"><U>BANDA  SEA</U></A>   |   <A HREF="id219.htm" TARGET="_top" TITLE="FLORES SEA"><U>FLORES SEA</U></A>   |   <B>TONGA</B>   |   <A HREF="id245.htm" TARGET="_top" TITLE="SAMOA "><U>SAMOA </U></A>   |   <A HREF="id156.htm" TARGET="_top" TITLE="FIJI"><U>FIJI</U></A>   |   <A HREF="id184.htm" TARGET="_top" TITLE="LOYALTY ISLANDS"><U>LOYALTY ISLANDS</U></A>   |   <A HREF="id193.htm" TARGET="_top" TITLE="KERMADEC ISLANDS "><U>KERMADEC ISLANDS </U></A>   |   <A HREF="id204.htm" TARGET="_top" TITLE="AUSTRALIA"><U>AUSTRALIA</U></A>   |   <A HREF="id157.htm" TARGET="_top" TITLE="NEW ZEALAND"><U>NEW ZEALAND</U></A></div> <div> </div> </td> </tr><tr> <td valign="top" width=210 BGCOLOR="#FFCC66" TEXT="#080000" background="0aad2043.jpg"> <div>          <FONT SIZE="2" COLOR="#FF0000" FACE="Arial" ><A HREF="id29.htm" TARGET="_top" TITLE="DATA"><U><B>Back to DATA</B></U></A></FONT></div> <bR> <bR> <div> <B>        </B><FONT SIZE="2" COLOR="#0000FF" FACE="Arial" ><B>August 6 - 2005</B></FONT></div> </td> <td valign="top" height=390 BGCOLOR="#DDDDDD" TEXT="#080000"> <div> <I><B>TONGA</B></I></div> <bR> <bR> <div> <B>GEOLOGICAL SETTING</B></div> <bR> <div> <A HREF="http://en.wikipedia.org/wiki/Tonga_Plate" TARGET="_top" TITLE="http://en.wikipedia.org/wiki/Tonga_Plate"><U><B><U>http://en.wikipedia.org/wiki/Tonga_Plate</U></B></U></A></div> <bR> <bR> <bR> <bR> <bR> <bR> <bR> <bR> <bR> <bR> <div> <IMG SRC="10a46550.gif" border=0 width="70" height="85" ALIGN="BOTTOM" HSPACE="0" VSPACE="0"></div> <bR> <bR> <div> _____________________________________________</div> <bR> <bR> </td> </tr></table></body>