Earthquakes today

Current and latest world earthquakes breaking news, activity and articles today

Geological news

Media Advisory: Briefing on New Science to Identify Sources of Excessive Nutrients in Rivers and Estuaries


Media Advisory: Briefing on New Science to Identify Sources of Excessive Nutrients in Rivers and Estuaries

What: The USGS will demonstrate a new and innovative online decision support system used to identify sources of nutrients to downstream waters, such as the Gulf of Mexico, Long Island Sound and others. The decision support system provides access to six newly-developed regional models that describe how rivers receive and transport nutrients to sensitive waters.

Why: This decision support system saves time and resources by giving water managers access to sophisticated water-quality models that relate nutrient sources, such as atmospheric deposition, agriculture, waste water treatment plants, and others, to stream water-quality conditions. Managers can easily map and track predictions of nutrient conditions, sources, and quantities transported to downstream waters, and evaluate alternative nutrient reduction scenarios.

Who: Alan Vicory, Executive Director of the Ohio River Valley Water Sanitation Commission
Steve Preston, USGS National Water-Quality Assessment Program
Saya Qualls, Tenn. Department of Environment and Conservation Water Pollution Control
Wayne Anderson, Minn. Pollution Control Agency

Where: Rayburn House Office Building, Room 2167, Washington, D.C.

When: Friday, October 28, 10:00 a.m. to 11:30 a.m.

Sponsors: Northeast Midwest Institute
Water Environment Federation
USGS National Water-Quality Assessment Program
 

The briefing is free and open to the public. No RSVP required.

For more information, contact Pallavi Raviprakash at praviprakash@wef.org or (703) 684-2400 x7741.

USGS Newsroom


More information

Parameter Value Description
Magnitude mb The magnitude for the event.
Longitude ° East Decimal degrees longitude. Negative values for western longitudes.
Latitude ° North Decimal degrees latitude. Negative values for southern latitudes.
Depth km Depth of the event in kilometers.
Place Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 1970-01-01 00:00:00 Time when the event occurred. UTC/GMT
Updated 1970-01-01 00:00:00 Time when the event was most recently updated. UTC/GMT
Timezone offset Timezone offset from UTC in minutes at the event epicenter.
Felt The total number of felt reports
CDI The maximum reported intensity for the event.
MMI The maximum estimated instrumental intensity for the event.
Alert Level The alert level from the PAGER earthquake impact scale. Green, Yellow, Orange or Red.
Review Status Indicates whether the event has been reviewed by a human.
Tsunami This flag is set to "1" for large events in oceanic regions and "0" otherwise. The existence or value of this flag does not indicate if a tsunami actually did or will exist.
SIG A number describing how significant the event is. Larger numbers indicate a more significant event.
Network The ID of a data contributor. Identifies the network considered to be the preferred source of information for this event.
Sources A comma-separated list of network contributors.
Number of Stations Used The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap The largest azimuthal gap between azimuthally adjacent stations (in degrees).
Magnitude Type The method or algorithm used to calculate the preferred magnitude for the event.
Event Type Type of seismic event.
Event ID Id of event.
Event Code An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS A comma-separated list of event ids that are associated to an event.

Leave a Reply