Add script to compress earthquake data from usgs.gov

site/public/examples/quake/quake-compress.js

@@ -0,0 +1,28 @@
+#!/usr/bin/env node
+var fs = require('fs');
+
+var filename = process.argv[2];
+
+if (!filename) {
+  console.log("Please specify a file to process");
+  process.exit(1);
+}
+
+if (!fs.existsSync(filename)) {
+  console.log("#{filename} not found.");
+  process.exit(2);
+}
+
+var data = fs.readFileSync(filename, 'utf8');
+var json = JSON.parse(data);
+
+var quakeData = json.features.map(function(feature) {
+  return {
+    time: feature.properties.time,
+    lat: feature.geometry.coordinates[1],
+    lng: feature.geometry.coordinates[0],
+    mag: feature.properties.mag
+  };
+}).sort(function(a, b) { return a.time - b.time});
+
+console.log(JSON.stringify(quakeData));