This HTML can be applied to a dcTrack HTML Widget to show the recent USGS Earthquakes on your dashboard.
Add a new HTML Widget to the dashboard, edit the widget settings and copy/paste the following HTML text.
<iframe width="100%" height="100%" frameborder="0" allowfullscreen src="https://www.arcgis.com/apps/opsdashboard/index.html#/5d01c6ccc21f4631abd3e16690a40041"></iframe>
