Environmental watch
What's in the air, water, and ground around here.
Live environmental OSINT for your community, pulled from public federal feeds — the EPA, the USGS, and the National Weather Service. No account, no tracking; every number links back to its public source. Auto-refreshes about every 30 minutes.
🌎 Environmental watch
Live public data for San Diego · updated 16 hr ago · showing last good readingAir quality
68ModerateUS AQI
PM2.5 18μg/m³PM10 22μg/m³Ozone 20μg/m³NO₂ 48μg/m³
Water monitoring
No live streamgage nearby.
Active alerts
- MinorCoastal Flood Advisory
Earthquakes · 30 days
M3.8strongest within 250 km
4 km SE of Piru, CA
16 quakes ≥ M2.5
Sources: Open-Meteo Air Quality, USGS Water Services, National Weather Service, USGS Earthquake Catalog, EPA National Priorities List. All public, no personal data.
Air quality — full readout
US Air Quality Index 68 (Moderate). Observed Sep 30, 2:00 AM.
18.2 μg/m³PM2.5
21.5 μg/m³PM10
20.0 μg/m³Ozone
47.6 μg/m³NO₂
2.1 μg/m³SO₂
206.0 μg/m³CO
Source: Open-Meteo Air Quality ↗
Active weather alerts1
MinorCoastal Flood Advisoryuntil Oct 1, 12:00 AM
Coastal Flood Advisory issued September 30 at 2:02AM PDT until September 30 at 5:00PM PDT by NWS San Diego CA
San Diego County Coastal Areas; Orange County Coastal
Source: National Weather Service ↗
Earthquakes — last 30 days16
M3.8↗M3.6↗M2.6↗M3.0↗M2.9↗
4 km SE of Piru, CA
Sep 30, 3:00 AM · 238 km away
7 km WSW of Hermosa Beach, CA
Sep 27, 3:40 PM · 175 km away
9 km WNW of Anza, CA
Sep 23, 10:52 AM · 102 km away
12 km SW of Estacion Coahuila, B.C., MX
Sep 20, 7:50 PM · 205 km away
4 km SSE of Compton, CA
Sep 17, 8:32 PM · 161 km away
Source: USGS Earthquake Catalog ↗
Superfund sites
99 active EPA Superfund (National Priorities List) sites in CA of 116 ever listed.
Camp Pendleton Marine Corps Base
San Diego County · NPL Site · 68 km away
The state’s energy ledger
What CA’s grid runs on, its EV fleet and charging network, and where its mandate stands — from the national Energy Ledger.
Open the CA energy dossier →Snapshot generated Sep 30, 9:43 AM (showing last good reading while refreshing). All data is public and carries no personal information.