Seismic Sphere
Global Earthquake Monitor Harvard University · Earth and Planetary Sciences · Shaw Group
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Live Event Stream0▭▾
Controls▾
M6+ earthquakes 1900 to today (USGS ComCat + ISC-GEM). Drag the slider to any year; weather has its own playback above.
Sphere-output controls only. Desktop text and lines keep their normal size. Start with larger labels and stronger plate/fault lines for the LED display.
For a 1920×1080 input, use Fill only if the controller maps the whole frame. A true 2:1 map is 1920×960. Larger text can overlap; switch off event labels or city names when not needed. Wave thickness is set in Seismic tracking.
Magnitude▾
024567+
P · PP
S · SS · SSS
Surface train
Real-time propagation from IASP91 travel times — P reaches 90° in ~13 min, S ~24 min, surface waves ~45 min. Rings dim with distance (geometric spreading + attenuation) and dissolve near their magnitude-scaled reach. Big quakes add reflected multiples (PP, SS, SSS); direct S dies off past 103° (liquid outer core); P dims in the 103–143° shadow zone.
Quakes
Graticule
Day / Night
Auto-spin
Wavefronts
Detections
Plates
Coastlines
Body multiples (PP·SS)
Borders & names
Event labels
Stars
Volcanoes
Active faults
City names
Beach balls M5.5+ exp
Ocean waves exp
Tsunami danger exp
Tiled imagery online
EMSC global feed review
build edfcc0c+dev · 2026-11-04 · v2026-11-10
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