In the two weeks since the horrific mass shooting at a high school in Parkland, Florida, azcentral.com has reported on 16 separate threat incidents at schools in Arizona, most in the Phoenix area.

A 17th incident reported on azcentral.com involved a threat against a Phoenix church.

At least one other incident, which was not reported previously on azcentral.com, occurred Feb. 20 at Cholla High Magnet School in Tucson and was not found to be viable, although parents were notified.

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Most of the school incidents involved threats seen on social media, and several involved students who brought weapons onto school property.

After investigating, police and school officials found most of the threats weren’t viable and some were considered hoaxes.

No one was injured in any of the incidents, but several people, including some minors, were arrested.

It should be noted that these only are incidents for which we were able to obtain information from school or law-enforcement authorities.

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Here is a rundown of incidents we have reported on since Feb. 15, the day after the Parkland tragedy:

Thursday, Feb. 15: A Scottsdale Chaparral High School student was arrested after a handgun was found in his car, police said.                 

Thursday, Feb. 15: A teen was arrested on suspicion of bringing a loaded handgun to Sierra Linda High School in Phoenix. 

Sunday, Feb. 18: A Parker High School student was arrested in connection with having a shotgun on campus. 

Wednesday, Feb. 21: Mesa schools were among those checking a viral social-media threat. 

Wednesday, Feb. 21: The Scottsdale Police Department said a teen was arrested after posting an online threat against Coronado High School.   

Wednesday, Feb. 21: A Chino Valley teen was questioned about an online threat against the high school.

Thursday, Feb. 22:St. Mary’s High School in Phoenix canceled classes after a social-media threat.   

Thursday, Feb. 22: Mesa High School advised parents of a second threat in two days. 

Saturday, Feb. 24: A former ASU football player was arrested after police said he threatened to shoot up Sun Devil Stadium.  

Sunday, Feb. 25: Gilbert police investigated an online threat against San Tan Elementary School in Gilbert.  

Monday, Feb. 26: A 20-year-old man was arrested after making an online threat to “shoot up’’ South Pointe High School in Phoenix, police said. 

Monday, Feb. 26: The Pinal County Sheriff’s Office says teens used GoFundMe to raise ammo money as part of a school threat.   

Tuesday, Feb. 27: Glendale police investigated a threat at Apollo High School in Glendale. 

Tuesday, Feb. 27: Goodyear police looked into a reported threat at an elementary school.  

Tuesday, Feb. 27: Classes were canceled at Gila Ridge High School in Yuma after shooting threats. 

Tuesday, Feb. 27: A trespasser was arrested after he was found with guns at Ottawa University campus in Surprise, police said.

The church incident:

Monday, Feb. 26: A man was arrested in connection with a threat against a Romanian church in Phoenix. 

READ MORE:

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Florida school shooting: What has happened since 17 people were killed?

Teens organize Phoenix ‘March for Our Lives’ in wake of Florida shooting

Our View: 4 ways to know if you’re part of the school shootings problem

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