What’s the loud boom I hear in my lawn? Frost quakes

That’s right, your lawn isn’t wrestling with eating too much over the holidays, but it is making strange, loud and unusual noises, deep down below.
They are actually called a cryoseism or also commonly referred to as “frost quakes”. So rest assured it’s not going to explode!

The Greater Toronto areas has been experiencing extreme cold lately, and because of that, we’ve also had extreme temperature shifts.  (like when it went to a balmy +2 or +3 deg C. last week, allowing us to scrape the 2″ of ice off our cars and driveways and kill our backs!-ugh).  This was in addition to the damaging ice storm experienced through Dec 21-23rd 2013. (see more on the tree damage in another blog)

The “above-freezing” temperatures (snowmelt, rain or sleet) allows water to seep into the soil, and when we are followed by extreme cold, this water freezes and expands creating the sound that many people are witnessing.  Really, its a big stress relief for the soil.  The sound isn’t much different than the the ice cubes cracking in your drink as you pour a warmer liquid, or its exposed to warm air (although its scale outside makes it much louder!)

Will it cause damage to my lawn or trees?  It’s possible, but that is due to the natural frost heaving that occurs every winter that many are unaware of, the more frost heaving, the more potential for shifting soils and the ripping and tearing of roots, (which could cause some damage to your lawn’s and tree’s root systems.) That’s another reason why its best to keep them properly cared for with the right amount of nutrition and overseeding to repair the damage each year.

Whats interesting to those of us interested in soil structures, is that these are thought to be most common in sandy or gravel soils which leads me to wonder- what area did you hear a cryoseism in this winter?

Let us know in your comments.

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  • Let’s Grow Healthy Lawns and Trees together. updated: 07/21/22

    Hi Everyone, 

    Summer is officially here!
    We are extremely grateful to our loyal customers. AND we are thrilled to learn we were the only lawn care company in the GTA awarded the first BEST OF THE BEST Award from
    LawnSavers was awarded the “Best Place to Work” designation in the June 2022 issue of Lawn and Landscape Magazine!

    We are fully open and performing lawn and pest control services in all our GTA service areas.

    Our service experiences a higher demand and volume of calls during Seasonal peaks.
    We know how much everyone hates being left on hold, so please feel free to  leave us a message,  or email and we will get back to you in less than 24 hours.  (you can also text us at 905-707-9994)

    Please be patient with us, we will get back to you as fast as we can and will do
    our very best to help you.

    You can also sign up for all services on our website by clicking here.

    2021 is now behind us.  Together with our customers, we are proud of our foundation as a community-minded, local, small family business and are extremely grateful to be able to persevere and keep all of our loyal employees working hard with us through it all.

    2020-21 important turf and tree high (and low) lights:

      • Nine days of snow, ice and wintry weather in May 2020,
        2021 was the driest April, May, and June in 51 years See Actual GTA daily weather records by clicking here.
      • One of the hottest, driest summers on record in 2020 with long spells of grass-killing heat and drought. Read more here in our 2020 summary blog.
        2021 carried on this trend with only a few days of rain in July and August, with extreme dryness and heat.
      • A bumper crop of crabgrass that germinated in the perfect (rainless) storm. As expected, even more arrived this past summer in 2021!
      • Chinch Bug numbers in 2020 were record breaking and persisted through the dry heat they love, secretly killing lawns while dormant! We can help with Chinch bug damage  Expect even more this summer!
      • Fall of 2021 provided excellent conditions for lawn that were treated through the summer with our recovery amendments to bounce back and regain their vigour. (thanks for the positive feedback!)
    • We put together an easy to read lawn care service timeline that you can use to know when to expect us for each scheduled service in your package. 

    Our number one priority remains the health and safety of our employees and customers.  Safety, Integrity and doing the right thing are som of our most important Core Values.  We will continue to follow strict and common sense safety guidelines that ensure “low/no touch”.  Safety of our team and clients will always be front and centre!

    Thank you all for your understanding and extra patience. Our team works hard, so if you are met with our exceptional service from our technicians or office team members- please give them a thumbs up to make them smile or let me know through a quick email to

    We thank you for supporting our local, family-owned business of 32 years.
     genuinely appreciate you.

    Thank you in advance,
    Kyle Tobin
    Chief Environmental Officer