iSeismometer

Name: iSeismometer
Rating: 3.3 (12 reviews)
Author: ObjectGraph LLC

Your phone is a seismograph

Free

12 Ratings
Age Rating

4+
Years
Category

Education
Developer

ObjectGraph LLC
Language

EN
+ 4 More
Size

3
MB

Rebuilt from the ground up: live spectrum, automatic recordings, event detection, USGS earthquakes on a globe, and a Mac control center for every device you own. iSeismometer turns your iPhone or iPad into a seismograph. Set it on a table, tap the desk, and watch the ground move. You will be surprised how sensitive your phone is. It has been doing that since the App Store opened in 2008, when it reached #1 in Education in Japan, Austria, Finland, and Greece. Version 1.7 is a complete rebuild: faster, clearer, and finally a real instrument. LIVE SEISMOGRAPH • Three axes at up to 100 samples per second, drawn like a strip-chart recorder • Scroll back through up to an hour of history while it keeps recording • Gravity filter with a real corner frequency, so slow tilt disappears and earthquakes stay • Live spectrum: see the frequency of footsteps, a washing machine, or a passing truck at a glance • Dark mode and a full iPad layout EVENT DETECTION • A seismologist's STA/LTA trigger flags every tremor with its peak acceleration, duration, and dominant frequency • Three sensitivity levels, from "only real shakes" to "every footstep" • Events are shaded on the traces and listed so you can jump straight to them RECORDINGS • Every session is saved automatically as compact raw data, split into hourly files • Browse by day, open any recording, scrub to its events, and see its spectrum • Export CSV, or pick up the raw files in the Files app and in Finder • Keep them for a day, a week, a month, or forever WAS THAT AN EARTHQUAKE? • Live USGS feed on a globe, filtered by time window and magnitude • Tap a quake for its depth, time, and the official USGS page STREAM TO YOUR MAC • Open iSeismometer on a Mac on the same Wi-Fi and your phone finds it by itself • The Mac shows every device streaming to it side by side, with its own recordings and event detection • Reconnects on its own after the screen locks, the network drops, or the Mac restarts Made for fun and for learning. A phone carries a MEMS accelerometer, not a broadband seismometer, so it feels footsteps and trucks far better than distant earthquakes. Put it on a solid floor, plug it in, keep the screen awake, and you have a home seismic station. iSeismometer is not a substitute for official earthquake early warnings or emergency alerts. Questions and ideas: info@objectgraph.com "This is a novelty app but one that also helps you learn something new... one of those things that is very captivating once you've looked at it once." — The Independent Guide to the iPhone 3GS

Ratings & Reviews

3.3

out of 5

12 Ratings

Cool!!
26/03/2009
Jasonworrie
the apps is great !! but there is only one thing it should have a record function that lets you record the graph... when u press the record buttom for something plz make a update like that!! i'm looking forward to it TYVMkeep it up
Cool!!
26/03/2009
Jasonworrie

the apps is great !! but there is only one thing it should have a record function that lets you record the graph... when u press the record buttom for something plz make a update like that!! i'm looking forward to it TYVMkeep it up
Very cute
02/06/2011
Jericho_Huskydog
I'm not sure exactly how accurate this is as an earthquake detection tool, but it certainly does work and yes, shows you how sensative the iphone is. i can see this being very useful in situations where you need to measure vibration on a surface and try and get that vibration to a minimum, such as tuning a car. Also, I think the donate option is much better than an add banner, very ethical.
Very cute
02/06/2011
Jericho_Huskydog

I'm not sure exactly how accurate this is as an earthquake detection tool, but it certainly does work and yes, shows you how sensative the iphone is. i can see this being very useful in situations where you need to measure vibration on a surface and try and get that vibration to a minimum, such as tuning a car. Also, I think the donate option is much better than an add banner, very ethical.
No support for iOS 11.
09/08/2018
Wenlock
Although working fine on older versions of iOS but not on iOS 11 so I can’t run it on my iPhone 5s. At least it runs on my iPad Retina and old 4th gen iPod. Last update was 7 years ago and support URL is now a 404 error.
No support for iOS 11.
09/08/2018
Wenlock

Although working fine on older versions of iOS but not on iOS 11 so I can’t run it on my iPhone 5s. At least it runs on my iPad Retina and old 4th gen iPod. Last update was 7 years ago and support URL is now a 404 error.
:/
10/06/2015
Bf docs
Keeps freezing and nothing works but waves...
:/
10/06/2015
Bf docs

Keeps freezing and nothing works but waves...

• 1.7.1: the app now speaks German, French, Spanish and Japanese. Connect to your Mac by address on networks that block Bonjour; the Mac shows its address and port under Receiver iSeismometer has been rebuilt from the ground up. • Smooth, fast charts that scroll back through up to an hour of history while recording continues • Live spectrum with adjustable range, window, and averaging • Event detection: tremors are flagged with peak acceleration, duration, and dominant frequency • Automatic recordings, browsable by day, with CSV export and Files app access • Gravity filter with a selectable corner frequency • USGS earthquakes on a globe, with time and magnitude filters • Mac app redesigned as a control center for every device streaming to it • Auto-reconnect to your Mac, charging awareness, and a keep-awake option • Dark mode, iPad layout, and a new launch screen

Version 1.7.1 1 hr ago

Data Not Collected

The developer does not collect any data from this app.

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Accessibility

Information

Seller: ObjectGraph LLC
Size: 3 MB
Category: Education
Compatibility: Requires iOS 16.0 or later.

iPhone
Requires iOS 16.0 or later.

iPad
Requires iPadOS 16.0 or later.

Mac
Requires macOS 13.0 or later.

Apple Vision
Requires visionOS 1.0 or later.
Languages: English and 4 more

English, French, German, Japanese, Spanish
Age Classification: 4+

4+

Learn More