Matt Springer has been giving presentations around San Francisco about home earthquake preparedness since 2008 (for more information about the presentation, go to his earthquake preparedness website). For those who cannot attend in person, a streaming version of the presentation is available online. This Quaketips blog is devoted to posts ranging from technical "how-to" articles to more philosophical "should-you" topics. New articles will be posted at most about once a month, so people who subscribe won't be subjected to lots of e-mail.

The suggestions contained in this website and in Matt Springer's presentations will substantially reduce the chances of an earthquake causing damage or injury, but cannot guarantee that problems will not still occur due to factors including but not limited to extreme seismic conditions, unexpected structural problems, bracing material flaws, or inadequate installation. This material is based on personal experience, research, and discussion with safety experts; Matt Springer does not have an official emergency management background other than standard community volunteer training. The information contained herein does not necessarily reflect the views of UCSF or the San Francisco Public Library.

Wednesday, December 31, 2025

Command Picture Hanging Strips vs Gravity and Murphy's Law, Which is Winning?

I’ve posted three articles about use of double Velcro-style Command Picture Hanging Strips to hang light or medium-heavy pictures, with the advantage that the picture is flush against the wall, and there’s no movement to cause swinging since all four corners are adhered to the wall rather than the object hanging from just one hook at top center.  However, longevity has been a concern, especially given occasional anecdotes from people about the strips not sticking well to walls in hot or humid climates.  

My 2016 article introduced the concept and was entirely positive, based on a short period of time in my old home.  I was subsequently there for another year before moving to my current home, and had no failures during that time.  

The 2018 article was written about 5 months after moving to my current home and thus having gone through a new round of mounting pictures and other objects: new walls, and some new items belonging to my wife (who was already there).  The Command Strips were still doing well, although the picture frames being mounted were more variable and sometimes not flat, or didn’t have a good full surface to which I could optimally stick a strip.  I pointed out some of the challenges posed by these variations and noted that one of the picture frames was a bit warped, so all four corners could not be tightly against the wall at the same time and one of them only had part of the strip against the wall; but it was holding up well despite that.

The 2020 article was written because I had started to see failures in the more challenging situations that I had mentioned in 2018.  The warped picture frame had a corner that had separated a bit more from the wall, but 3 1/2 strips were still adhered.  However, one picture fell spontaneously; it had waxy paper on the back and had been mounted by putting duct tape on the paper and sticking the Command strip adhesive side to the duct tape.  The Command Strip had not failed; it was the duct tape that had separated from the backing paper.  I figured this was a special case.  Some small framed photos in the bathroom had only a thin plastic rim on the back rather than a full surface and thus had started slowly sliding, and ultimately fell (2018 and first 2020 photo below).  The Command Strips ultimately had failed in that sub-optimal situation, so I cleverly built up extra material and stuck the Command Strips to that (second 2020 photo below).

The challenging bathroom frames in 2018 failure in
2020, my solution in 2020, and failure again in 2025
(click to enlarge)
SO, it’s the very end of 2025, and how are they all doing?  Well, it’s pretty abysmal; I’ve had 6 or 7 pictures spontaneously fall at different times!  However, the Command Strips were not the weak link.  The bathroom frames for which I had to jury rig a surface to adhere with the Command Strip just turned out to be too challenging; it was the extra material I had built up that failed (see photos at left).  The frame on the stairwell that had the one warped corner finally fell, and then when I put it back up, it didn’t take long to fall again.  My wife has similar frames for some pictures in her den, and 3 of the 4 have fallen one by one—these also seem to be a little warped.  So the Command Strips seems to be doing ok when sticking a flat surface to another flat surface, with both surfaces being at least as big as the Command Strip, and none of them having “non-stick” surfaces involved.  I think it’s still worthwhile to occasionally glance at Command Strip-mounted items from the side just to make sure that there has been no warping nor resulting partial separation of a strip.

Photos from my 2018 article. I did not take new
photos for this article because they look identical
now to how they looked when first mounted 8
years ago, including side view (click to enlarge).
Notably, EVERY item that I had mounted at my old home described in the 2016 article not only stayed securely mounted there, but also has remained securely mounted for the last 8 years in my current home, including items near doors where one expects more temperature and humidity changes (photos at right).  Clearly, some kinds of back surfaces are better than others for mounting with Command Strips.

I should point out something very important: ANY of these methods of hanging pictures could potentially fail one way or another, so never mount/hang anything, with any method, over the head of a bed, crib, dog bed, etc. that you would not want to fall there.  That includes Command Strips, maze picture hoods, regular picture hooks, and nails.  Note that the Command website also emphasizes that you should never mount something over a bed.  I got a useful comment last month on my 2020 Command Strip article from somebody who apparently had a spectacular failure after 5 years.  I was hoping to find out more details, like whether the Command Strips had separated from the picture, the wall, or themselves, but never got a follow-up.  I’m including a screenshot of that useful dialogue (screenshot is below).

Timely, recent comment on the 2020 article
with my reply (click to enlarge). If this
commenter sees this, I've love to learn
more details.
So what have we learned?  The differences between the two home situations are different kinds of paint on the walls, and the pictures that my wife had were in some cases warped already.  I want to emphasize that in all of the cases where the Command Strips were used to stick flat, full-surface frame backs, made of material that didn’t resist sticking, there were no failures in 8 years.

So here’s a rule of thumb.  If, after having stuck a picture to the wall with Command Strips, you find yourself patting yourself on the back and saying, “Aren’t I clever to have figured out a solution?!”, it is an inauspicious sign of things to come!


Saturday, July 9, 2011

Should I stay or should I go?...the inevitable dilemma about staying in the building during an earthquake

This month, we are taking a break from the actual preparedness issues and will instead delve further into this annoyingly counter-intuitive recommendation to not run out of buildings during earthquakes.

Monday, April 18, 2011

An amazing story from the past, AND more about hanging pictures that won’t come crashing down (the wired and non-wired varieties)

Even though I don’t plan on posting very often so  I don’t add to the e-mail overload of people who subscribe, it just makes sense to post something on April 18th, the anniversary of the great San Francisco earthquake of 1906.  There are two items on today’s plate: first a link to a then-young woman’s amazing description of what she experienced in the 1906 quake, and then I wanted to discuss a bit more about hanging pictures on the walls safely.

Thursday, March 31, 2011

Important information about the recurring "Triangle of Life" e-mail spam


Thoughts about the much-publicized North American earthquake prediction for late March 2011

"Why the heck do you live in that place with earthquakes??"

A blog is launched; opening thoughts

This is my first experience authoring a blog, and there will probably be a few technical bumps along the way.  Earthquake safety is an important topic in a place like the San Francisco Bay Area, and I hope that the information and occasional thoughts and tips here will be of interest to people who are trying to maximize their safety in our occasionally moving region.

It's important to remember that even though we live in a place that is subject to earthquakes, which are occasionally pretty big, most of the risks associated with California earthquakes can be minimized by taking some precautions ahead of time.  Just like one knows not to go jogging alone in the middle of the night in a dark park in a dangerous part of town, one should know what to do and not to do in regions subject to natural disasters.

I'm kick-starting this blog with a few entries in a row, first introductory and then a few entries that have already been on my website.  After that, I'll post occasionally; perhaps even relatively rarely so that I don't add to people's e-mail burdens.  I've got no idea about how many people will be signing on to this, but welcome to those that do!

-Matt Springer

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