NSF SAGE Facility FDSNWS event Web Service Documentation


This service is deprecated and will be retired in 2024

Users are recommended to transition their use of this service to other endpoints. Of particular interest for DMC users:

International Seismological Centre:


United States Geological Survey:

Below is a full list of service parameters and their usage.

Query Usage

Retired service

Sample Queries

Retired service

Detailed Descriptions of each Query Parameter

Retired service


Retrieve the WADL associated with this service:


Date and Time Formats

Year, Month, Day in Month — Time:

YYYY-MM-DDThh:mm:ss[.ssssss] ex. 1997-01-31T12:04:32.123

YYYY-MM-DD ex. 1997-01-31 a time of 00:00:00 is assumed


YYYY	:: four-digit year
MM	:: two-digit month (01=January, etc.)
DD	:: two-digit day of month (01 through 31)
T	:: date-time separator
hh	:: two digits of hour (00 through 23) (AM/PM NOT allowed)
mm	:: two digits of minute (00 through 59)
ss	:: two digits of second (00 through 59)
ssssss	:: one to six digits representing decimal fractions of a second, down to microseconds

Problems with this service?

Please send an email report of which service you were using, your URL query, and any error feedback to:
[email protected]
We will address your issue as soon as possible.

FDSNWS event web service