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IRIS Earthquake Sci
@IRIS_EPO
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Are you going to @NSTA? Please join us for one (or more!) of the following sessions or Share-A-Thons. #NSTA19 #educator (THREAD)
Thursday, April 11: Bring NASA’s Seismic Data from Mars to Your Classroom!
3:30–4:30 PM | America’s Center, Room 242
Explore data from the first seismometer on #Mars! Learn about Mars’ interior using IRIS’s free software, lessons, and data from @NASAInSight mission. #NSTA19
Friday, April 12: Meet Me in the Middle Share-a-thon
3:00–4:30 PM | Marriott St. Louis Grand, Majestic D/E @NSTA #NSTA19
Sat, April 13: Accounting for Uncertainty in Scientific Argumentation
9:30–10:30 AM | America’s Center, Rm 152
Uncertainty is an important part of scientific discourse, yet often overlooked in the classroom. Explore ways to bring uncertainty into students’ argumentation.
Sat, April 13: @NESTA_US, @UNAVCO, and IRIS Session: Are Earth’s Plates Really Moving? Explore Earth Science Data | 9:30–10:30 AM | America’s Center, Annex | Explore and quantify plate motions and investigate models to support observations! #NSTA19
Sat, April 13: @NESTA_US Earth System Science Share-a-Thon
11:00 am–12:00 PM | America’s Center, Annex
Sat, April 13: After an #Earthquake: Real-Time Earthquake Data as a Hook to Encourage Answer-Seeking about the Geologic and Societal Context of the Event | 2:00–3:00 PM | America’s Center, Rm 223 | Learn about our free classroom products, data, animations, and visualizations.
Sunday, April 14: @NESTA_US and @UNAVCO: Hands-On Demonstrations and Models for Your Earth Structure, #Earthquake, and Plate Tectonics Unit
9:30–10:30 AM | America’s Center, Room 225
Explore UNAVCO’s collection of inexpensive physical models.
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More from @IRIS_EPO see all

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IRIS Earthquake Sci
@IRIS_EPO
The Great Alaska Earthquake occurred on March 27, 1964 and rocked the state with strong ground shaking that lasted four and a half minutes. #AlaskaEarthquake #earthquake
At M9.2, it was the 2nd largest quake ever recorded. This event also rocked the scientific community by confirming a major principle of #platetectonics with the observation that the oceanic Pacific Plate dives beneath the continental North American Plate at the Aleutian trench.
On average, #Alaska has 24,000+ measured earthquakes every year. Usually, there is at least one M7 every year. Between 1899 and 1986, eight #earthquakes of M8 or greater impacted different areas of the Aleutian subduction zone.
Read 19 tweets
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IRIS Earthquake Sci
@IRIS_EPO
Subduction-zone mega-thrust #earthquakes, the most powerful earthquakes, can produce #tsunamis through a variety of structures that are missed by simple models. (THREAD)
The basic model shows rock above the convergent plate boundary being compressed and bent as it stores elastic energy. Once friction is overcome, the overriding plate slides abruptly up the fault causing the leading edge to heave seawater upward generating a #tsunami.
In 2011, the M9 #Japan #earthquake ruptured a fault area 500kms x 200kms over an interval of nearly 3 min. Surveys of sea-floor bathymetry before and after the earthquake document up to 50 m of fault displacement at near the Japan Trench.
Read 15 tweets
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IRIS Earthquake Sci
@IRIS_EPO
NEW ANIMATION! Foreshock, Mainshock, or Aftershock? (THREAD) #earthquake @NSF_GEO
There is often confusion surrounding the terminology of earthquakes. Large earthquakes are followed by 100s or even 1000s of smaller earthquakes, called aftershocks. In some #earthquake sequences, a smaller earthquake called a “foreshock”, precedes the mainshock.
Although seismologists have carefully analyzed foreshock/mainshock pairs of earthquakes, and earthquake triggering in general, there are no special characteristics of a foreshock that let us know it is a foreshock until the mainshock occurs.
Read 12 tweets

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diaryofanaijagirl.ng
@DANGposts
Yesterday at the Lagos General hospital where some of the casualties of the Ita-Faaji collapsed building are being treated, I met Maria Adeyemo. I'll tell you about her.

#Thread
Maria birthed 3 beautiful girls, two of whom are twins. Maria has struggled all her life but she's always wanted her babies to get an education even though she didn't have such privilege. Thankfully, she got married to a hardworking man who also has the same belief.
Maria sells cheap biscuits and candies on the road at Eko Idumota. These goods are placed in a small tray, while she alternates between sitting and standing to attract customers, at the end of the day, Maria may turn over N2,000
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Ian Kluft
@ikluft
“Earthrise: A Video Reconstruction” is #NASA #astronomy picture of the day by @apod/@USRAedu apod.nasa.gov/apod/ap181223.… Apollo 8’s iconic photo “Earthrise” was taken 50 years ago; 4K HD animation shows astronauts’ view using NASA LRO data of lunar surface
“Earthrise in 4K” is a 50th anniversary commemoration of the 1968 #Earthrise image during Apollo 8, and description how the rendering was made with NASA LRO imagery/data taken since 2009, by @NASA/@NASAGoddard/@USRAedu #astronomy #Apollo50 #Apollo8 #Moon
#Apollo8 was historic for 1st time humans left Earth and orbited the Moon. Apollo was intended as Cold War competition with Soviets. Starting with #Earthrise photo and many other observations, we found we had much to learn about Earth there. #astronomy #space #history
Read 7 tweets
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Andreas Graf
@andreasgraf
THREAD: SECTORAL DEEP DIVE - BUILDINGS IN 2030
Wednesday I posted an overview of some of the key energy data highlights for 2030 in the @EU_Commission's newly released EU 'Long Term Strategy'. Today I want to take a closer look at 'Buildings Sector'. 1/
So to begin, what is the 'Buildings Sector'? Well if you intuitively answered, anything relating to buildings, you would be indeed correct. It's that simple. With one important caveat you will need to understand to make sense of this thread. 2/
In energy and climate statistical data we differentiate between the 'residential sector' (ie. households/non-commercial buildings) and the 'services sector', which includes buildings related to trade and market services, but also public buildings and agriculture. 3/
Read 26 tweets
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Kayode Ogundamisi
@ogundamisi
#Thread

Why I decided to oppose @MBuhari - @bukolasaraki addresses followers in Kwara State 👇

"All that you have complained about tonight is on point, I can not find anything you have said that is not on point, you complained about empowerment" @bukolasaraki
"Let us agree that the last 3 and a half years, things have not been easy at all, I agree and accept things have not been easy at all, particularly in the area of empowerment" @bukolasaraki
"Before 2015 I have always tried to empower the youth and get you involved in appointments, but this time around as a result of what I call human factor, things have not been the same, I believe it is the will of God" @bukolasaraki
Read 27 tweets
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AnupamSaraph
@AnupamSaraph
#Thread on the Ghosts of #Aadhaar

Are subsidies, benefits and services from the Consolidated Fund of india being siphoned by the Ghosts and duplicates of Aadhaar?
In order to assign an #Aadhaar number at least two Primary IDs are required by the UIDAI - one as proof of identity and another as a proof of address. uidai.gov.in/enrolment-upda…
According to data provided by the UIDAI, in its Affidavit to the SC, only 60 crores could have used the voter ID, 29 crores PAN,17.37 crores a drivers license, 15.17 crores a ration card and 6.9 crores a Passport as their Primary ID to obtain a Secondary ID, the #Aadhaar
Read 20 tweets
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Gonto
@mgonto
#thread One of the biggest misconceptions of new managers is that they think they need to come across as having strong personalities and no weaknesses.

What they don't realize is that by doing that they alienate people. #thread 👇
* When junior people see their managers as very strong, they might be scared to share their opinion
* When senior people see their managers as strong on things that don't make sense, they might think they're an idiot and not say anything
I think the best thing we can do with our teams is create a vulnerability based trust where we can be who we really are. We're never as strong as when we're ourselves.
Read 5 tweets

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