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Media Advisory: Volcano Detective Kicks Off Centennial Commemoration with Free Public Lecture

Media Advisory: Volcano Detective Kicks Off Centennial Commemoration with Free Public Lecture

ANCHORAGE, Alaska —One hundred years ago this June, Novarupta and Katmai volcanoes, in what is now Katmai National Park & Preserve, exploded in a 3-day volcanic eruption. This historic eruption created the Valley of Ten Thousand Smokes, which early explorers called the eighth wonder of the world. Come hear how “volcano detectives” explored the aftermath of one of the five largest eruptions in recent history and why the still-active volcanoes offer important insights about earth processes that shape our world.

Who: Judy Fierstein, U.S. Geological Survey Research Geologist and Novarupta – Katmai expert

What: Free public lecture to tell the eruption story and what the 1912 eruption teaches us about large explosive eruptions and volcanic processes and hazards

Where: Anchorage Museum, 625 C Street, Anchorage, AK.

When: Tuesday, April 24 at 7 p.m.

The Novarupta – Katmai eruption was a landmark event in the young science of volcanology. Scientists believe that an eruption of this size could happen again

The USGS, Alaska Volcano Observatory, National Park Service, and the Alaska Historical Society have partnered to commemorate the 100th anniversary of the 1912 Novarupta-Katmai eruption – Earth’s largest of the 20th century– by offering a series of lectures, publications, and other events. Visit the AVO and NPS websites for more details.

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.

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