Retreive and print quake date and size from the Icelandic Met office

getQuakes.js

// run with node:
// node getQuakes.js 3.5
// to get all quakes over M3.5

async function getQuakesFromMetoffice(minimumQuakeSize) {
    const axios = require('axios');

    let pageHtml = await axios.get('https://vedur.is/skjalftar-og-eldgos/jardskjalftar/reykjanesskagi/#view=table');
    lines = pageHtml.data.split('\r\n');
    let VI = {quakeInfo: undefined};
    eval(lines.filter(l=>/VI.quakeInfo/.test(l))[0]);

    return VI.quakeInfo.map(x=>{ return {...x, s: parseFloat(x.s.replace(',','.'))} }).filter(x=> x.s>=minimumQuakeSize);
};

(async function() {
    const minimumQuakeSize = parseFloat(process.argv[2]?process.argv[2]:3.0);
    const quakes = await getQuakesFromMetoffice(minimumQuakeSize);
    quakes.sort((a,b)=>a>b?1:-1).forEach(x=>console.log(x.t, x.s));
}());