quick little node script to show growl alerts when the ground shakes

quake.js

var request = require("request");
var csv = require("csv");
var growl = require("growl");

const URL = "http://earthquake.usgs.gov/earthquakes/catalogs/eqs1hour-M0.txt";
const INTERVAL = 20000;

// this is what the keys map to
var keys = ['Src', 'Eqid', 'Version', 'Datetime', 'Lat', 'Lon', 'Magnitude', 'Depth', 'NST', 'Region'];
var quakes = {};

function notifyNewQuake(quake) {
  var title = "New Quake Detected";
  var msg = quake.Region + ": " + quake.Magnitude;
  console.log(title, msg, buildQuakeUrl(quake));
  growl(msg, { title: title });
}

function notifyUpdatedQuake(quake, oldQuake) {
  var title = "Updated Quake Info";
  var msg = "Updated " + oldQuake.Region + ": " + oldQuake.Magnitude + " to " + quake.Magnitude;
  console.log(title, msg, buildQuakeUrl(quake));
  growl(msg, { title: title });
}

function buildQuakeUrl(quake) {
  return "http://earthquake.usgs.gov/earthquakes/recenteqsus/Quakes/" + quake.Src + quake.Eqid + ".html";
}

function parseQuakeData(data) {
  var parsedData = {};
  data.forEach(function(d, i) {
    parsedData[keys[i]] = d;
  });
  return parsedData;
}

function handleQuakeData(data) {
  var quake = parseQuakeData(data);
  // if we already have this quake, look to see if we should update the data
  // otherwise it's a new quake
  if (quakes[quake.Eqid]) {
    // console.log("got existing quake");
    var oldQuake = quakes[quake.Eqid];
    // check to see if it's a different version
    if (oldQuake.Version != quake.Version) {
      notifyUpdatedQuake(quake, oldQuake);
      quakes[quake.Eqid] = quake;
    }
  }
  else {
    quakes[quake.Eqid] = quake;
    notifyNewQuake(quake);
  }
}

function getQuakeData() {
  var currentQuakes = {};
  var c = csv().fromStream(request(URL));
  c.on("data", function(data, index) {
    if (index > 0 && data)
      handleQuakeData(data);
  });
}

// call getQuakeData once to seed, then follow on an interval
getQuakeData();
setInterval(getQuakeData, INTERVAL);