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Best Mercalli Scale Apps

0+ iOS apps curated and reviewed

4.1 avg rating
18 free apps
Updated June 2026

MyShake Earthquake Alerts is the household name in mercalli scale, but it's far from the only option. We track 0+ alternatives and competitors on iOS — many free, many higher-rated than you'd expect.

Compare top Mercalli Scale Apps (June 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1MyShake Earthquake AlertsMyShake Earthquake AlertsFree3.3★ (1.9K)NoNoAug 2026
2Earthquake - alerts and mapEarthquake - alerts and mapFree4.7★ (50K)NoYesAug 2026
3My Earthquake Alerts & FeedMy Earthquake Alerts & FeedFree4.8★ (139K)YesNoAug 2026
4QuakeFeed Earthquake AlertsQuakeFeed Earthquake AlertsFree4.8★ (99K)NoYesAug 2026
5Earthquake: Alerts & MapEarthquake: Alerts & MapFree4.7★ (3.4K)YesYesAug 2026
6QuakeZonesQuakeZonesFree2.3★ (4)NoNoMay 2026
7iSeismometeriSeismometerFree3.6★ (170)NoNoAug 2026
8Earthquake+ Alerts & TrackerEarthquake+ Alerts & TrackerFree4.7★ (22K)NoYesAug 2026

Top Picks for Mercalli Scale

MyShake Earthquake Alerts#1

MyShake Earthquake Alerts by University of California, Berkeley

Earthquake Warning California
Editor's Choice
☀️ Weather
3.3😐(1.9K ratings)
Free
#13in Weather
MyShake Earthquake Alerts screenshot 1
MyShake Earthquake Alerts screenshot 2
MyShake Earthquake Alerts screenshot 3
MyShake Earthquake Alerts screenshot 4
MyShake Earthquake Alerts screenshot 5
MyShake Earthquake Alerts screenshot 6

Get timely earthquake early warnings for California, Oregon, and Washington. Access safety tips, explore global earthquake data on a map, and contribute to a citizen-science seismic network. Receive notifications for earthquakes based on your region and magnitude preferences.

What We Love

  • 🚀 Early earthquake warning
  • 👍 Useful for earthquake preparedness
  • 🚨 Alerts before shaking starts
  • 🗺️ Detailed earthquake information

Room to Improve

  • 🐛 Unreliable notifications
  • 🔔 Excessive or unnecessary alerts
  • 🔋 High battery consumption
Earthquake - alerts and map#2

Earthquake - alerts and map by Nico Tranquilli

worldwide data and alerts
Strong Contender
☀️ Weather
4.7😊(50K ratings)
FreeIn-App Purchases
#34in Weather
Earthquake - alerts and map screenshot 1
Earthquake - alerts and map screenshot 2
Earthquake - alerts and map screenshot 3
Earthquake - alerts and map screenshot 4
Earthquake - alerts and map screenshot 5
Earthquake - alerts and map screenshot 6

Stay informed about seismic activity with real-time global earthquake data and customizable push notifications. Visualize events on an interactive map, access a historical catalog, and contribute to community reports. Includes tsunami bulletins and detailed event information.

What We Love

  • 🚀 Real-time earthquake updates
  • 🌍 Worldwide earthquake coverage
  • 📊 Detailed earthquake information
  • 🔔 Customizable alert settings

Room to Improve

  • 🕰️ Delayed notifications
  • 🔒 Limited free features
  • 🗺️ Lack of advanced map options
My Earthquake Alerts & Feed#3

My Earthquake Alerts & Feed by JRustonApps B.V.

US & Worldwide Earthquakes Map
Worth Considering
☀️ Weather
4.8😊(139K ratings)
FreeAds
#8in Weather
My Earthquake Alerts & Feed screenshot 1
My Earthquake Alerts & Feed screenshot 2
My Earthquake Alerts & Feed screenshot 3
My Earthquake Alerts & Feed screenshot 4

Stay informed about seismic activity with real-time earthquake alerts and a comprehensive global map. Track quakes, receive instant notifications, and search historical data. This free, ad-supported application provides detailed information on location, depth, and distance.

What We Love

  • 🚀 Real-time earthquake alerts
  • 📍 Detailed earthquake information
  • ⚙️ Customizable notification settings
  • 🗺️ Intuitive map interface

Room to Improve

  • 🐛 Missed earthquake notifications
  • 🔍 Inaccurate or delayed earthquake data
  • 🔌 High battery consumption

More Mercalli Scale apps to explore

4
QuakeFeed Earthquake Alerts
QuakeFeed Earthquake Alerts
QuakeFeed Earthquake Alerts
Earthquakes Tracker Maps News
Free

Track earthquakes worldwide with real-time alerts, customizable notifications, and detailed map layers. Access multiple data sources and view historical data. Premium features include wildfire and smoke tracking, volcano and hurricane alerts, and enhanced map options.

Worldwide earthquake mapReal-time alertsCustomizable regional alerts
☀️ Weather
(99K)
freemium
5
Earthquake: Alerts & Map
Earthquake: Alerts & Map
Earthquake: Alerts & Map
Live Tracker, Feed & Warnings
Free

Stay informed about seismic activity worldwide with real-time earthquake tracking and alerts. View detailed maps, filter by various criteria, and receive notifications for significant events. Access global data from multiple agencies to understand seismic trends.

Live earthquake dataWorldwide seismic alertsDetailed map view
☀️ Weather
(3.4K)
freemium
6
QuakeZones
QuakeZones
QuakeZones
Historical Earthquakes
Free

Explore a vast database of historical and current earthquake events worldwide. View over 33 years of seismic activity on interactive maps or detailed lists. Filter by magnitude, date, or proximity, and save locations of interest for quick access.

Historical earthquake data since 1973Current earthquake updatesMap and List views
📡 News
(4)
free
7
iSeismometer
iSeismometer
iSeismometer
Feel the Pulse of the Earth
Free

Transform your iPhone into a sensitive seismometer to detect and visualize vibrations. Explore its educational and data-collecting capabilities for fun or serious applications.

Converts iPhone to seismometerDetects and visualizes vibrationsData collecting capabilities
📚 Education
(170)
free
8
Earthquake+ Alerts & Tracker
Earthquake+ Alerts & Tracker
Earthquake+ Alerts & Tracker
Worldwide & Near You Today
Free

Stay informed about seismic and volcanic activity worldwide with real-time alerts, detailed maps, and historical data. Track earthquakes, volcanic eruptions, and tsunamis from over 30 trusted sources. Customize notifications and explore rich visualizations.

Real-time earthquake and volcano monitoringData from 30+ trusted sourcesTsunami and volcanic eruption alerts
☀️ Weather
(22K)
freemium
9
QuakeWatch
QuakeWatch
QuakeWatch
Latest Earthquakes Info
$0.99

This app provides real-time information on earthquakes worldwide. It features an interactive map, detailed reports, and customizable alerts. Stay informed about seismic activity near you or loved ones.

Interactive world map with tectonic platesSortable earthquake listings (recent, largest, closest)Tsunami information access
📡 News
(78)
paid
10
Scale for Grams & Weights・Kilo
Scale for Grams & Weights・Kilo
Scale for Grams & Weights・Kilo
Digital Scale for Grams
Free

Transform your phone into a digital scale using AI. Simply take a photo of an object to instantly get its weight in various units. Ideal for precise measurements of small items, food portions, or packages without needing a physical scale.

Instant weight estimates from photosScale for grams precisionDigital scale accuracy with ML
🔧 Utilities
(706)
subscription
11
LastQuake
LastQuake
LastQuake
by EMSC
Free

Receive real-time earthquake alerts and contribute to scientific research by sharing your experiences. This app provides critical safety information and allows you to notify loved ones during seismic events.

Real-time earthquake informationCustomizable notificationsEyewitness comments, photos, and videos
☀️ Weather
(2.1K)
free
12
EarthQuake Map
EarthQuake Map
EarthQuake Map
by Illes Laszlo
Free
$14.99 | 100% OFF

Visualize global seismic activity with detailed information on an interactive map. Customize your search by date, magnitude, and map view, and save important events to your favorites.

Global earthquake visualizationDetailed earthquake informationCustomizable search settings
📡 News
(12)
free
13
Digital scale: grams & weights
Digital scale: grams & weights
Digital scale: grams & weights
Scale For Weighing Gram Weight
Free

Transform your iPhone into a digital scale using AI. Estimate the weight of objects by taking a photo or uploading an image, with results available in grams, pounds, or kilograms. Track your measurements and use the AI-powered algorithm for accurate estimations.

Estimate weight from photosSupports grams, pounds, and kilogramsAI-powered weight estimation
🔧 Utilities
(66)
free with in-app purchases
14
Seismometer - Earthquake Alarm
Seismometer - Earthquake Alarm
Seismometer - Earthquake Alarm
Live Meter & Alarm
Free

Transform your device into a sensitive seismograph to monitor real-time seismic vibrations. Customize sensitivity, receive instant alerts for significant activity, and interpret data with an intuitive interface. Explore Earth's movements for educational, home monitoring, or entertainment purposes.

Real-time seismic monitoringCustomizable sensitivity levelsInstant alert notifications
☀️ Weather
(434)
free with in-app purchases
15
EarthQuake+
EarthQuake+
EarthQuake+
EarthQuake alerts, data, maps
Free

Stay informed about seismic activity with real-time earthquake alerts and detailed data. Access global information from multiple sources, filter notifications by location and magnitude, and view events on an interactive map. Includes tsunami bulletins and social sharing capabilities.

Unlimited push notificationsAdvanced notification filtersInteractive earthquake map
☀️ Weather
(2.3K)
free with in-app purchases
16
My Earthquake Alerts Pro
My Earthquake Alerts Pro
My Earthquake Alerts Pro
US & Worldwide Live Quake Map
$2.99

This app provides real-time earthquake monitoring and alerts worldwide. It features a live map, customizable notifications, and historical earthquake data. Find precise details like location, depth, and distance from you.

Live earthquake mapCustomizable earthquake alertsHistorical earthquake search (since 1970)
☀️ Weather
(5.8K)
free with in-app purchases
17
Earthquake Safety Tips
Earthquake Safety Tips
Earthquake Safety Tips
How To Protect Yourself
Free

Learn essential safety procedures for earthquakes through interactive scenarios, educational rhymes, and engaging tests. This app helps children understand how to stay calm, prepare emergency kits, find safe shelters, and administer basic first aid during and after an earthquake.

Interactive real-life earthquake scenariosEducational nursery rhymes and cartoonsMaster safety tips through tests
📚 Education
(640)
free with in-app purchases
18
Volcanoes & Earthquakes
Volcanoes & Earthquakes
Volcanoes & Earthquakes
Earthquake & Volcano Alerts
Free

Track the latest seismic and volcanic activity globally. View earthquakes and active volcanoes on an interactive map or in a detailed list. Receive custom alerts for events near your location or specific areas of interest.

Latest earthquakes on map and listActive volcano trackingCustomizable earthquake and volcano alerts
☀️ Weather
(322)
free with in-app purchases
19
Just Scale kitchen scale
Just Scale kitchen scale
Just Scale kitchen scale
get the best smart scale deals
Free

Transform your smartphone into an expanded display for your smart kitchen scale. Effortlessly convert between numerous weighing units like kg, oz, lb, and ml, and even convert weight to length for yarn measurement. Supports Siri Shortcuts for convenient control.

Smartphone as scale displayUnit conversions (kg, oz, lb, ml, cups)Weight to length conversion
🔧 Utilities
(70)
ad-supported
20
Epicenter - Earthquake Map
Epicenter - Earthquake Map
Epicenter - Earthquake Map
Track Global Seismic Activity
Free

Explore global earthquake activity from the past 30 days on an interactive globe. View detailed information, animate seismic events over time, and customize map displays. Includes companion apps for Apple Watch and a Today Widget for quick access to recent data.

30 days of global earthquake dataInteractive rotatable and zoomable globeEarthquake details (magnitude, depth, source)
☀️ Weather
(37)
paid

FAQ about Mercalli Scale

What are the best mercalli scale apps for iPhone?
MyShake Earthquake Alerts tops our mercalli scale apps ranking as of June 2026, with a 3.3-star average from 1.9K App Store ratings, and it's free to download.
Yes — 18 of the top mercalli scale apps we rank are free to download, including MyShake Earthquake Alerts and Earthquake - alerts and map.
MyShake Earthquake Alerts has no ads and has no in-app purchases, according to its App Store listing as of June 2026.
MyShake provides earthquake early warnings for California, Oregon, and Washington using the USGS ShakeAlert system. It also offers earthquake safety tips, a global earthquake map with detailed information, and notifications for earthquakes based on your selected regions and magnitude.
The app utilizes the USGS ShakeAlert system to deliver alerts for earthquakes of magnitude 4.5 or greater. These alerts are received several seconds before shaking arrives, giving users time to take protective actions.