Earthquake player

What is this?

A tool to replay earthquake series from USGS earthquake feeds, catalog search, EMSC catalog search, user specified GeoJSON URLs and files, or included files featuring the July 2019 Ridgecrest and October 1989 Loma Prieta quakes.
Built using OpenLayers. Data courtesy USGS, EMSC, OpenStreetMap contributors. Bugs by me.

How do I use it?

Scroll down to the controls, pick your poison and hit Play. Using Chrome or Firefox is suggested.

I wish it did something different. Can I modify it?

Yep. It's a mess... caveat forker.

Bugs?

Probably. Tweet me?

Time: - Speed: x /s

Step Loop
Speed Speed X

Data source:

Start :
End : , default now.
Mag min Max
Limit bounds:
None
Map view
Radius  km from map center
Radius  degrees from map center
Limit max records
Order by Time, new to old Time, old to new Magnitude, high to low Magnitude, low to high For use with limit, does not affect playback

Enter URL of GeoJSON source compatible with USGS GeoJSON summary format.
NOTE: Minimal validation, time range set from first/last events, CORS must be permitted.

Select a GeoJSON file compatible with USGS GeoJSON summary format.
NOTE: Minimal validation, time range set from first/last events.

Data info: Start - End - Total quakes - M - - -

Marker options:
Fade time:
Point color opacity size
Scale by Mⁿ
Outline color opacity size
Display only M: min max

Scale line Off US Metric
Time zone: Browser UTC

Status messages: