Alaska Earthquake Center Quarterly Technical Report October-December 2021

This series of technical quarterly reports from the Alaska Earthquake Center (AEC) includes detailed summaries and updates on Alaska seismicity, the AEC seismic network and stations, field work, our social media presence, and lists publications and presentations by AEC staff. Multiple AEC staff members contributed to this report. It is issued in the following month after the completion of each quarter Q1: January-March, Q2: April-June, Q3: July-September, and Q4: October-December.1. Introduction 2. Seismicity 3. Field network 4. Data Quality assurance 5. Real-time earthquake detection system 6. Computer systems 6.1 Computer resources 6.2 Waveform storage 6.3 Metadata 6.4 Software development 7. Fieldwork 8. Social media and outreach 8.1. Website 8.2. Twitter 8.3. Facebook (Page) 8.4. Facebook (Group) 9. Publications and presentations 9.1. Publications 9.2. Public Presentations 9.3. Lunch Seminar Talks 10. References Appendix A: Data availability for broadband stations from the AK network. Appendix B: Gaps for broadband stations from the AK network

Know Your Tsunami Hazard in Skagway

Coastal Alaska communities live with the most serious tsunami hazard in the United States. The Alaska Earthquake Center helps coastal communities prepare for the next tsunami disaster. We provide state and local officials with the best available scientific information for addressing the variety of tsunami hazards faced by their communities. These community-specific brochures distill information from several scientific publications, such as tsunami inundation reports, pedestrian travel time maps, and maritime response guidance, into a handy, quick reference. The brochures include maps with community-designated safety information, historical tsunami information, as well as links for local and statewide tsunami preparedness information. The brochures are rack-card size for easy display, and a great safety resource for both locals and visitors. The Earthquake Center partnered with the Alaska Division of Homeland Security and Emergency Management and the Municipality of Skagway to create this brochure, tailoring the map, safety contact information, and historical information to this location

Know Your Tsunami Hazard in Klawock

Coastal Alaska communities live with the most serious tsunami hazard in the United States. The Alaska Earthquake Center helps coastal communities prepare for the next tsunami disaster. We provide state and local officials with the best available scientific information for addressing the variety of tsunami hazards faced by their communities. These community-specific brochures distill information from several scientific publications, such as tsunami inundation reports, pedestrian travel time maps, and maritime response guidance, into a handy, quick reference. The brochures include maps with community-designated safety information, historical tsunami information, as well as links for local and statewide tsunami preparedness information. The brochures are rack-card size for easy display, and a great safety resource for both locals and visitors. The Earthquake Center partnered with the Alaska Division of Homeland Security and Emergency Management and the City of Klawock to create this brochure, tailoring the map, safety contact information, and historical information to this location

Effects of Wintering System on Cow and Calf Performance in a Summer- Calving Intensive Production System

A study evaluated the effects of two wintering systems (cornstalk grazing and drylot feeding) on cow- calf performance in a summer- calving intensively managed cowherd at two locations. Grazing cow- calf pairs on cornstalks resulted in lower ending BW of cows and reduced ADG of calves when compared to drylot cow- calf pairs at weaning. A partial budget of incorporating winter cornstalk grazing into an intensive production system suggests that cows wintered on cornstalks were $136.85 more profitable when compared to cows wintered in the drylot

Know Your Tsunami Hazard in Ketchikan and Saxman

Coastal Alaska communities live with the most serious tsunami hazard in the United States. The Alaska Earthquake Center helps coastal communities prepare for the next tsunami disaster. We provide state and local officials with the best available scientific information for addressing the variety of tsunami hazards faced by their communities. These community-specific brochures distill information from several scientific publications, such as tsunami inundation reports, pedestrian travel time maps, and maritime response guidance, into a handy, quick reference. The brochures include maps with community-designated safety information, historical tsunami information, as well as links for local and statewide tsunami preparedness information. The brochures are rack-card size for easy display, and a great safety resource for both locals and visitors. The Earthquake Center partnered with the Alaska Division of Homeland Security and Emergency Management, the City of Ketchikan, and the City of Saxman to create this brochure, tailoring the map, safety contact information, and historical information to this location

Effects of Wintering System on Cow and Calf Performance in a Summer- Calving Intensive Production System

A study evaluated the effects of two wintering systems (cornstalk grazing and drylot feeding) on cow- calf performance in a summer- calving intensively managed cowherd at two locations. Grazing cow- calf pairs on cornstalks resulted in lower ending BW of cows and reduced ADG of calves when compared to drylot cow- calf pairs at weaning. A partial budget of incorporating winter cornstalk grazing into an intensive production system suggests that cows wintered on cornstalks were $136.85 more profitable when compared to cows wintered in the drylot