Maintaining a webpage is not my forté, nor my priority. Apologies for broken links.
Recent Earthquakes
Socal/US/Global
https://earthquake.usgs.gov/earthquakes/map/
https://ds.iris.edu/seismon/bigmap/index.phtml
Socal (slower to log than USGS)
https://scedc.caltech.edu/recent/
Global satellite images/Exploring the World
Google Earth Pro on Desktop https://www.google.com/earth/about/versions/
US Soil Maps (USA only - these are models/predictors accurate only to 1:24,000)
Soil Web Earth (Google Earth Plugin) https://casoilresource.lawr.ucdavis.edu/soilweb-apps
Soil Web Online Browser App https://casoilresource.lawr.ucdavis.edu/gmap/
Global Atmospheric Conditions
Fires
Local: https://app.watchduty.org/
Global: https://firms.modaps.eosdis.nasa.gov/map/#d:24hrs;@0.0,0.0,3.0z
Aircraft
https://www.flightradar24.com/34.10,-117.81/6
Ships (last known position)
https://www.marinetraffic.com/en/ais/home/centerx:-12.0/centery:25.0
Air Quality
https://www.iqair.com/us/air-quality-map
https://map.purpleair.com/1/mAQI/a10/p604800/cC0#9.14/33.922/-117.905
LA Area:
https://experience.arcgis.com/experience/6a6a058a177440fdac6be881d41d4c2c/
https://scaqmd-online.maps.arcgis.com/apps/webappviewer/index.html
Geology
https://ngmdb.usgs.gov/ngmdb/ngmdb_home.html
(on iPhone) Rock’d (app)
Landslides in LA County (ancient to present day)
https://maps.conservation.ca.gov/cgs/lsi/app/
Wells & Groundwater elevations in LA County
https://dpw.lacounty.gov/general/wells/
Other Useful Soils & Geology Pages:
Photo: coppice dunes developed in anthropogenically reworked scoria, Fossil Falls, CA.