Web Statistics for www.iris.edu for 2009

Month Unique visitors Number of visits Pages Hits Bandwidth
Jan 2009
189137
466639
3401358
4601540
605.70 GB
Feb 2009
152659
386355
3093156
4274149
292.81 GB
Mar 2009
155969
386137
3827409
5122295
373.88 GB
Apr 2009
272249
570287
4393357
5894629
407.86 GB
May 2009
207541
473552
3836861
5762044
329.26 GB
Jun 2009
153990
381605
2954470
4765372
383.93 GB
Jul 2009
153394
404489
3180223
4760528
364.72 GB
Aug 2009
173940
460501
3127823
4764010
554.46 GB
Sep 2009
199785
478523
3477963
5868771
428.10 GB
Oct 2009
256389
652547
4900483
8908950
970.28 GB
Nov 2009
195980
491633
4737280
8201826
714.29 GB
Dec 2009
178476
441792
3677882
7008625
541.58 GB
Total
2289509
5594060
44608265
69932739
5966.86 GB

updated: 2009.12.31

AWStats Glossary contains information about unique visitors, number of visits, pages, hits, etc.

Top pages viewed:

Web Visits

Daily Web Visits to the IRIS website in 2009. The sharp peaks correspond to major earthquakes. Web traffic naturally increases during the working week and dips during the weekend resulting in an weekly hump pattern. The dip in March 2009 was due to a power outage at the DMC.

In April 2009, the M6.3 earthquake in Central Italy caused a spike in daily web traffic. At the end of September 2009, there was a M8.0 quake in the Samoa Islands plus a M7.6 quake in Sumatra. The M7.6 quake in Vanuatu resulted in a peak in web visits on Oct 7, 2009.

Unique Visitors per month

Unique Visitors to the IRIS website from 2003 to 2009. The peaks correspond to major earthquakes. The large peak in December 2004 followed the Sumatra earthquake and tsunami. The increase in visitors during May 2006 was due to an earthquake in Java. The peak in September 2007 followed the M8.4 earthquake in Sumatra. The spike in May 2008 followed the M7.9 Sichuan China earthquake.

On 6 April 2009, the M6.3 earthquake in Central Italy caused a steep increase in web traffic and record number of software downloads at the DMC.

M8.0 Samoa Islands and M7.6 Sumatra quakes caused a spike in web visits at the end of September, 2009.

A unique visitor is a statistic describing a unit of traffic to a Web site, counting each visitor only once in the time frame of the report (Wikipedia).

 

Peaks in activity for the IRIS Website (tracked by Alexa).