Mapping earthquakes provides live information of seismic activity based on USGS reported data with basic information about place and magnitude of the earthquake. Also the map can show different tectonic plates across the world.
HTML Javascript D3 JS LeafletJS Mapbox API CSS for styling
You need an account with MapBox (https://account.mapbox.com/), create and download API key from MapBox and create a file called config.js under static/js of your choice either Earthquakes_Challenge or Earthquakes_past7days.
Content of the config.js file should be of the following sort
const MAP_API_KEY =
Earthquake data sourced from USGS --> https://earthquake.usgs.gov/earthquakes/feed/v1.0/summary/all_week.geojson Tectonic Plate source from github --> https://raw.githubusercontent.com/fraxen/tectonicplates/master/GeoJSON/PB2002_boundaries.json
Default rendered streets view with overlayed earthquake and tectonic plate information, provision to turn on/off earthquake and tectonic plate information is added. Earthquake highighted using circular marker whose size and color is based on magnitude of the earthquake. Legends are added explaining different colors and the correlation to the magnitude.
Satellite view is added which can show the terrain information as characteristic in the map along with Earthquake and Tectonic Plate with popup to show one of the earthquake details 
Using mapboxgl new daytime view of the map with just tectonic plate information is attached also highlighted one of the tectonic plate to see the name 
Using mapboxgl new nighttime view of the map is also added with earthquake information 