--- product_id: 1045061 title: "JDS c-88quake Earthquake Alarm | Detects P-Wave Seismic Activity, Earthquake Early Warning System, Alerts Before Destructive S-Wave" brand: "jds" price: "$109.46" currency: USD in_stock: true category: "Jds" url: https://www.desertcart.us/products/1045061-jds-c-88quake-earthquake-alarm-detects-p-wave-seismic-activity store_origin: US region: United States of America --- # Detects quakes miles away Loud, wake-up alarm Early P-wave detection JDS c-88quake Earthquake Alarm | Detects P-Wave Seismic Activity, Earthquake Early Warning System, Alerts Before Destructive S-Wave **Brand:** jds **Price:** $109.46 **Availability:** ✅ In Stock ## Summary > ⏳ Don’t just survive—outsmart the quake with early alerts! ## Quick Answers - **What is this?** JDS c-88quake Earthquake Alarm | Detects P-Wave Seismic Activity, Earthquake Early Warning System, Alerts Before Destructive S-Wave by jds - **How much does it cost?** $109.46 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/1045061-jds-c-88quake-earthquake-alarm-detects-p-wave-seismic-activity) ## Best For - jds enthusiasts ## Why This Product - Trusted jds brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Miles-Ahead Detection:** Monitors seismic activity from hundreds of miles away for ultimate preparedness - • **Loud & Distinctive Alarm:** Piercing sound designed to wake you even if walls start to collapse - • **Automatic Reset & Silence:** Smartly shuts off and resets after the quake, no manual hassle needed - • **Custom Sensitivity Control:** Fully adjustable settings to tailor alerts to your local seismic environment - • **Split-Second Early Warning:** Instantly senses the faster P-wave to give you crucial extra seconds before danger ## Overview The JDS c-88quake Earthquake Alarm is a battery-powered seismic sensor that detects the initial P-wave of earthquakes, providing early warnings before the destructive S-wave arrives. With adjustable sensitivity and the ability to detect quakes from miles away, it offers critical seconds to take cover. Its loud alarm ensures you wake up even in the worst scenarios, while automatic reset features keep it ready for continuous protection. ## Description The Quake Alarm is designed to provide instant warning of seismic activity by detecting the "P" wave (compression wave) of an earthquake, which travels faster than the more destructive "S" wave (shear wave). The Quake Alarm saves valuable seconds by removing the guesswork in earthquake detection. It is capable of detecting large earthquakes that occur hundreds of miles away and can detect moderate to minor earthquakes for many miles around your local area. One very important advantage of the Quake Alarm is that it can wake you up and alert you the moment the quake starts so that you can immediately take cover or tend to other family members. The Quake Alarm can eliminate confusion, save valuable seconds and provide peace of mind. ## Features - Polyester - Imported - Provides early quake warning by detecting an earthquake's sound wave before the destructive shear wave strikes your area - Fully adjustable sensitivity setting - Automatically resets and shuts off alarm when earthquake stops - Can detect earthquakes that occur many miles away to help property and shop owners make informed decisions and check damage to remote - Loud, distinctive alarm will wake you up in case collapsing walls fail to do the trick ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B001D8NMY4 | | Alarm | Audible | | Best Sellers Rank | #857,577 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #1,953 in Household Sensors & Alarms #13,572 in Security & Surveillance Equipment | | Brand | JDS | | Color | White | | Customer Reviews | 4.3 4.3 out of 5 stars (326) | | Enclosure Material | Plastic | | Manufacturer | Jds Products | | Mfr Part Number | QA-2000 | | Model Number | c-88quake | | Number of Items | 1 | | Power Source | Battery Powered | | Product Style | Classic | | Sensor Type | Non-dispersive infrared | | UPC | 092912020009 | | Unit Count | 1.0 Count | ## Product Details - **Alarm:** Audible - **Brand:** JDS - **Color:** White - **Manufacturer:** Jds Products - **Material:** Plastic - **Number of Items:** 1 - **Power Source:** Battery Powered - **Sensor Type:** Non-dispersive infrared - **Style:** Classic - **Unit Count:** 1.0 Count ## Images ![JDS c-88quake Earthquake Alarm | Detects P-Wave Seismic Activity, Earthquake Early Warning System, Alerts Before Destructive S-Wave - Image 1](https://m.media-amazon.com/images/I/21X7-0hs-tL.jpg) ## Questions & Answers **Q: I live in st. louis. how much warning would it give for a quake in new madrid, mo?** A: OK, so to answer this question, you need to first understand how the device itself works. It's real simple. There is a ring with an alarm and a pendulum hanging in the center of the ring. What this device detects is two different types of waves, the sound wave and the shear wave. This thing detects the sound wave pretty darn well but it also depends on the size and duration of the waves... you might hear a little ring for an insignificant but sizable quake, but a more pronounced alarm when the wave is significant in both size and duration. The sound wave will travel through solid objects and cause the pendulum to swing and contact the ring which makes the alarm sound, the 9V batter lasts for quite a long time because the circuit is normally open and does not allow for leakage current. The waves start from the epicenter so it depends on where the fault erupts, to calculate the time of warning and technically speaking no one can precisely provide an answer of how much warning this device or any other device would give. The New Madrid fault is a real threat to quite a few largely populous cities and it closely follow the western Tennessee border and while it does not point either end directly at St. Louis, Earthquakes are circular and St. Louis is probably anywhere between 70 and 150 miles from the closest measurement to the fault. If the fault were to erupt at the southern point, you would get more time to get to cover. If it were to erupt on the northern point of the fault, your probably looking at under 5-10 seconds if your lucky but in that time, you become ahead of the game and now when the shear wave hits your already in reaction mode... to that point... The second wave is the shear wave or the shaking. when the shaking starts, the device will start going crazy and constantly sounding. Honestly, it is largely confirming that you are feeling a quake and not something else... I live within sight of the San Andreas Fault and have had this device in my home for years. I can tell you first hand that it absolutely does work but it won't trip for small quakes that wouldn't cause damage i think the lowest setting is about a 5.0 or so... which i have experienced while only a few feet from the device so i could visually see what happened. It was a 5 seconds warning for a 5.0 quake about 60 miles away but it provided immediate confirmation that the slightly sea sick feeling we experience as humans from the sound wave... If you don't have one... Get 2... if you have one, get another... Best advise i can give to anyone living close to a fault or concerned they will be caught off guard by a quake... this should be as mandatory as a smoke detector in your area... **Q: how loud is the alarm? do you have one of these on each floor of the house? one in each bedroom? only one in the whole house? thanks.** A: Hi, the alarm is a simple chiming buzz, it plays following the mechanical contact of the swinging pendulum against the adjacent metal frame (frame has an adjustable width in order to set the right sensitivity you wish).I think the alarm "sound pressure" is sufficient just in these two circumstances :1) If you are awake and around 6-7 meters from the device 2) If you are sleeping and the device is set close to your bed (within 1-2 meters) in my case I fixed it on the wall, half meter far from my bed, so that it will be able to wake me up. (consider that I live in apartment so it is a single-floor home. It is a 100mq. apartment, not a huge apartment. For my application I think it works fine) Being the buzzer-contact activated by a mechanical way you have the advantage the battery charge will not be used unless the quake happens. Battery will be ready for long time (will discharge just for "oldness") **Q: I live in MN where a huge quake could occur in eastern MO, and past ones have been felt further than where I am. Could this help in my situation?** A: YES this is the BEST case for this device.Let me be more clear.If the main focus of another giant New Madrid/MO earthquake is in MO and you are say 450 miles away (St Louis,MO to Rochester, MN border is 450 miles according to google) the earthquake alarm would feel the p waves at least 2 to 3 MINUTES (http://www.google.com/url?sa=t&rct=j&q=&esrc=s&source=web&cd=3&cad=rja&ved=0CDYQFjAC&url=http%3A%2F%2Facademics.concord.edu%2Fsckuehn%2FVirtualEarthquake.pdf&ei=4Y8rUpzpNoLM9ATvzYHABA&usg=AFQjCNHc6KVy0i2IpMfXYFUnIBYsQFwWMA&bvm=bv.51773540,d.eWU) before you would otherwise feel the major shaking thus it would give you time to do something - wake up, get outside, get a door open so you aren't trapped inside etc. It works BEST in situations like yours when there is a large quake that is further away because it then gives you the MOST time warning before the later big rolling waves that will hurt you will follow.IT works LEAST well when the quake originates right under your house becuase then both waves hit you at nearly the same instant.since we know the eastern US feels the effects of New Madrid quakes far more than Los Angeles feels the effects of closer quakes we know that Earthquake damage in the Middle of america and the East could be strong as far away as MO.(the New Madrid quake rang church bells in Boston!) **Q: I live in Oregon where we have a 37% chance of a magnitude 9 or greater earthquake striking within the next 50 years. Approximately 50 miles off the Oregon coast is the Cascadia Subduction Zone where in January 29, 1700 a magnitude 9 earthquake occurred. They occur on average approximately once every 250 years and the …** A: today is 1/29/18, and I've read that there is now 14% chance for the 9 or greater quake within next 50 years. But Nature lives by it's own rules, and it could happen at any moment. A device like this is valuable even if you only get 10 seconds notice. That 10 seconds could save lives. Definitely get this device, and apply it to a solid post that is connected to the ground. By the way, over the last 10,000 years, the mega quakes are averaged to occur at approx 500 years apart, with significant but smaller magnatude quakes spaced in between those largest ones. But keep in mind that although some mega quakes were spaced as much as about 1,000 years apart, there were others that were only in the 200's apart, so better to be prepared in case we experience one of the shorter intervals. Who's to say for sure. ## Frequently Bought Together - JDS c-88quake Earthquake Alarm - MayDay Earthquake Alarm with Early Detection Feature --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.us/products/1045061-jds-c-88quake-earthquake-alarm-detects-p-wave-seismic-activity](https://www.desertcart.us/products/1045061-jds-c-88quake-earthquake-alarm-detects-p-wave-seismic-activity) --- *Product available on Desertcart United States of America* *Store origin: US* *Last updated: 2026-07-06*