DISCLAIMER

The earthquake information delivered through the Earthquake Notification Service (ENS) is preliminary. Subsequent review usually results in some revision to the data, and all users are advised to check the USGS earthquake program pages at https://www.usgs.gov/programs/earthquake-hazards for updates. Data users are cautioned to consider carefully the provisional nature of the information before using it for decisions that concern personal or public safety or the conduct of business that involves monetary or operational consequences. Earthquakes are a common occurrence, and many are either not large enough to cause damage or not located sufficiently close to populations centers to produce damage. E-mail alerts sent through ENS do not imply an impending threat.

ENS is an informational tool and NOT a robust earthquake or tsunami warning system. The USGS does not produce tsunami warnings. For the information about tsunamis, please refer to the information given in the NOAA website https://tsunami.gov/.

On a global basis, earthquakes of magnitude 5.0 or greater are generally reviewed and distributed by ENS within 2 hours or their occurrence. Some events of magnitude 5.0 to 6.0 in remote parts of the world, especially on mid-ocean ridges in parts of the Southern Hemisphere, may not be distributed until 24 hours after their occurrence. Within the US, widely felt earthquakes are generally distributed within 5 minutes. Additionally, processing and sending the messages typically takes 30 minutes. The USGS cannot guarantee the receipt or timeliness of an e-mail message after it has been sent.

If numerous bounced messages are received from your account, the automated system will not remove your address from the ENS mailing list. If that should happen, your mail regions will be marked 'inactive' and the system will stop sending you mail. If you fix your address and you still want to receive e-mails, just log in and mark your regions active.

The events which have been located by the USGS and contributing agencies should not be considered to be a complete list of ALL events M2.5+ in the US and adjacent areas and especially should not be considered to be complete lists of ALL events M4.0+ in the World. The World Data Center for Seismology, Denver (a part of the USGS National Earthquake Information Center) continues to receive data from observatories throughout the world for several months after the events occurred, and using those data, adds new events and revises existing events in later publications.

Please address unresolved mailing list issues to: ensadmin@ens.usgs.gov.

PRA - Privacy Statement

This form is subject to the Privacy Act of 1974.

Authority
The National Earthquake Hazards Reduction Program (NEHRP), which was first authorized in 1977, Public Law (PL) 95–124), and most recently reauthorized in 2004 (NEHRP Reauthorization Act of 2004, PL 108–360

Principal Purpose
The Earthquake Hazards Program provides rapid, authoritative information on earthquakes and their impact to emergency responders, governments, facilities managers and researchers across the country.

Routine Use
Used to allow users to report shaking intensity of earthquake events, to allow users to receive notifications of earthquake events, and to allow users to volunteer to have seismic instrumentation installed on their property.

Disclosure is Voluntary
If the individual does not furnish the information requested, there will be no adverse consequences. However, if you do not provide contact information, we may be unable to contact you for additional information to verify your responses.

Privacy Act Statement
You are not required to provide your personal contact information in order to submit your survey. However, if you do not provide contact information, we may be unable to contact you for additional information to verify your responses. If you do provide contact information, this information will only be used to initiate follow-up communications with you. The records for this collection will be maintained in the appropriate Privacy Act System of Records identified as Earthquake Hazards Program Earthquake Information. (INTERIOR/USGS-2) published at 74 FR 34033 (July 14,2009).

Paperwork Reduction Act Statement
The Paperwork Reduction Act of 1995 (44 U.S.C. 3501 et. seq.) requires us to inform you that this information is being collected to supplement instrumental data and to promote public safety through better understanding of earthquakes. Response to this request is voluntary. Public reporting for this form is estimated to average 6 minutes per response, including the time for reviewing instructions and completing the form. A Federal agency may not conduct or sponsor, and a person is not required to respond to, a collection of information unless it displays a currently valid OMB Control Number. Comments regarding this collection of information should be directed to: Bureau Clearance officer, U.S. Geological Survey, 807 National Center, Reston, VA 20192.