# Wood-Anderson torsion seismometer

> seismometer developed by Harry Oscar Wood & John August Anderson

**Wikidata**: [Q25429888](https://www.wikidata.org/wiki/Q25429888)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Wood–Anderson_seismometer)  
**Source**: https://4ort.xyz/entity/wood-anderson-torsion-seismometer