The Trendy application is being retired in the new year. The new web application, ThingSpeak, offers similar functionality. We recommend that active Trendy users who are looking to create new trends use ThingSpeak. To begin collecting your data in ThingSpeak, please read the tutorial : ThingSpeak for Trendy users. Although Trendy no longer allows the creation of new trends, the application will still remain accessible until January 13, 2016. Until that date, you can view your current trends and download your data. After that date, your data will no longer be accessible. Thanks for using Trendy and we encourage you to check out ThingSpeak.


Average magnitude of earthquakes past day

This trend is broken.

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[s,status] = urlreadwrite(mfilename,catchErrors,url,varargin{:});


data points



Including all earthquakes in the world. Data provided by the Eearthquake Notification Service ENS.

Recently Collected Data (last 5 of 650) Show All Data

Time Recorded (time1713) Data (data1713)
03 Apr 2015 04:01:14 NaN
02 Apr 2015 04:00:13 [1.68918918918919]
01 Apr 2015 04:00:23 [1.55674157303371]
31 Mar 2015 04:00:13 [1.87860962566845]
30 Mar 2015 04:00:14 [1.69019607843137]
% -------------------------
% import and prepare data

url = '';
block = urlread(url);
fmt = '%s %s %s %s %s %s %s %s %s %s %s %s %s';
readData = textscan(block, fmt, 'delimiter', ',');

% -------------------------
% process
T = size(readData{5},1);
magnitudes = zeros(T-1,1);
for t = 2:T
magnitudes(t-1) = str2double( char( readData{5}(t) ) );

magNAN = isnan(magnitudes);
magnitudes_adj = magnitudes(magNAN==0);

avgMagn = mean(magnitudes_adj);


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