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Language: en-US

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Hi, everyone. I’m Maggie
Ortiz-Millan, senior program

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manager at the Earthquake
Engineering Research Institute.

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I manage our Learning from
Earthquakes program,

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and I’m the lead staff for
response to earthquakes.

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I’ll be talking about how EERI
responds to earthquakes

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in general and in
California specifically.

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I want to start by saying
a few words about EERI

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for those who may
not be familiar.

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The Earthquake Engineering
Research Institute is the leading

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nonprofit membership organization
that connects those dedicated to

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reducing earthquake risk.
Our multidisciplinary members

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include engineers, geoscientists,
social scientists, architects, planners,

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emergency managers,
academics, students,

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and many other
like-minded professionals.

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EERI is managed by a small staff
based in Oakland, California.

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If you’re interested in learning more
about EERI or would like to become

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a member, you can visit EERI.org
for more information.

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EERI responds to
earthquakes through our

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Learning from Earthquakes
program, or LFE.

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Through LFE, EERI has been
deploying reconnaissance teams to

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study earthquake impacts since 1948.
EERI leverages our multidisciplinary

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international membership to document
the impacts of earthquakes around

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the world and to achieve the program
mission of accelerating and increasing

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learning from earthquake-induced
disasters that affect the natural,

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built, social, and political
environments worldwide.

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EERI has responded to over
300 earthquakes around the world.

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In addition to team-based
reconnaissance studies,

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for U.S. earthquakes,
EERI also has specific

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responsibilities as part of the NEHRP
post-earthquake coordination plan.

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Under the current USGS Circular 1242,
EERI has the following roles in

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U.S. earthquake technical response.
Along with federal and state partners,

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to determine if the earthquake
is significant and warrants

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the implementation of
all or part of the plan.

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To compile and link to earthquake
information from the earthquake.

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To compile and link to engineering
information from the earthquake.

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To work with federal and state
agencies to organize a field

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technical clearinghouse.
And, along with USGS,

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to publish an event summary report
within three months of the event.

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In states with their own
clearinghouse plan,

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EERI may have additional roles
for earthquakes in that state.

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As Cindy described, in California,
the California Earthquake

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Clearinghouse is responsible for
managing a technical clearinghouse

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following an earthquake.
EERI serves as vice chair of the

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California Earthquake Clearinghouse,
and in that role, we support the

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clearinghouse activation in
California in the following ways.

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By establishing a virtual
clearinghouse website.

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By staffing a physical
clearinghouse location.

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By connecting and coordinating the
engineering response and investigators.

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By hosting nightly briefings
and coordination calls.

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By sharing engineering
observations and data with

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data coordination efforts led by
the California Geological Survey.

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And by maintaining the California
Earthquake Clearinghouse website.

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In addition to supporting
a California Earthquake

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Clearinghouse activation,
EERI may also deploy

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a reconnaissance team to investigate
specific impacts of an earthquake.

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I want to end with an example of
EERI’s most recent response to

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an earthquake in California – the
2019 Ridgecrest earthquake sequence.

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EERI’s response to this earthquake
was mainly in support of the California

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Earthquake Clearinghouse activation.
In support of the clearinghouse,

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EERI established the virtual
Earthquake Clearinghouse website

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for the sequence to collect and
share preliminary observations.

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Several EERI staff traveled
to Ridgecrest to staff

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the physical clearinghouse
location along with CGS.

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The physical location was open
for one week with more than

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60 people checking into
the clearinghouse.

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EERI hosted regular evening
briefing calls to share preliminary

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field observations.
Briefings were held daily

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while the physical location was
open and continued less frequently

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for several weeks after the
physical location was closed.

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Over 120 people participated in the 10
briefings, either in person or remotely.

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EERI also supported data coordination
efforts led by CGS and the USGS

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by collecting and sharing data and
observations from engineering teams.

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In addition to the clearinghouse
response, EERI also coordinated

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several fallout activities to support
the dissemination of observations

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and findings to the
broader community.

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EERI hosted a reconnaissance briefing
webinar one month after the earthquake

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to share preliminary findings.
We also published an earthquake

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reconnaissance report which
compiled summaries of the

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multidisciplinary observations
from the earthquake.

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And finally, eight months
after the sequence began,

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EERI hosted special sessions
on the earthquake sequence

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as part of the 2020 National
Earthquake Conference.

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The Ridgecrest earthquake sequence
virtual Earthquake Clearinghouse

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website contains links to all products
from these activities and will serve

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as a long-time archive of this –
long-term archive of this information.

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The Ridgecrest clearinghouse
activation was similar to the

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clearinghouse activation for the
2014 South Napa earthquake.

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EERI’s response to a future earthquake
in northern California would likely

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be similar to the Ridgecrest and
South Napa earthquake activations.

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Thank you for your attention.
If you’re interested in learning more

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about EERI or our LFE program or the
California Earthquake Clearinghouse,

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you can visit the links on this slide.
I’m looking forward to the panel

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discussion and your questions.
Thank you.