Tremor 97. A square wave at 20 Hz, originating from Subway Tunnel. Recorded in a underwater environment, era: 1950s. One of 5555 echoes — sounds no one thought to save.
Name
ECHO #2670 — Tremor 97
Owner![]()
0xb379F0637c473617481B66FDe2B230217701Cbe4
ID#2670
Rarity
LO:67%
Frequency
20 Hz
EX:4%
Wave Type
Square
X-HI:10%
Resonance
Cold
X-HI:10%
Era
1950s
X-HI:5%
Origin
Subway Tunnel