Glass Shard (image) Arizona State University Share Print E-Mail Caption The photo shows a volcanic glass shard erupted 74,000 years ago from the Toba volcano in Indonesia found at an archaeological site nearly 9000 km away at Vleesbaai, South Africa. Credit Image credit Racheal Johnsen. Usage Restrictions Image may be used only by media outlets for articles related to this research release. Share Print E-Mail Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.