The Change of Qibla Direction 2

thumbnail
In the previous article, has been described how the potential for changes qibla direction at someplace that caused by the earthquake. Visit this Link! The Change of Qibla Direction.

Now, in this article we will describe one example of the shift of coordinates that caused by the earthquake, and the changing direction of qibla. How big is it? And how big is the change?

Sample of Qibla Direction Change
Simulation of The Change of Qibla Direction
One of the mosques we have sampled is the Baiturrahim mosque in Ule Lheue, Aceh, Indonesia. One of the areas that was hit by the Tsunami on December 26, 2004 with a strength 9.3 Mw. The tsunami was the result of an earthquake in the Indian Ocean, which took victims from six countries : Indonesia, India, Sri Lanka, Thailand, the Maldives and Somalia.

Tsunami
Simulation of Tsunami 2004 in Indian Ocean
Source : Wikipedia.com
Please see some image below, these images we got from Google satellite imagery in Google Earth App, in a few different times.

The Shift of The Baiturrahim Mosque
Image 1 : The Capture of Baiturrahim 2004
Image 1: Satellite images taken on June 23, 2004, before the earthquake occured. in this figure there is the coordinate value of the roof of the Baiturrahim Mosque is 5˚ 33 '21.4 "N and 95˚ 17' 1.7" E.


The Shift of The Baiturrahim Mosque
Image 2 : The Capture of Baiturrahim 2005

Image 2 : Satellite images on January 28, 2005, images taken several months after the earthquake. the coordinates shifted to 5˚ 33 '20.67 "N and 95˚ 17' 1.61" E. coordinates shifted to the South West.

The Shift of TheMosque
Image 3 : The Capture of Baiturrahim 2009

Image 3: Satellite image on June 16, 2009, image taken 4 years after the earthquake. The coordinates again shifted towards the North East, the coordinates are 5˚ 33 '20.97 "N and 95˚ 17' 2.22" E

The Shift of TheMosque
Image 4 : The Capture of Baiturrahim 2010

Image 4: Satellite images on July 8, 2010, shifting South East to 5˚ 33 '20.9 "N and 95˚ 17' 2.39" E

The Shift of TheMosque
Image 5 : The Capture of Baiturrahim 2017
Image 5 : The last image on January 29, 2017, shifting North East to 5˚ 33 '20.95 "N and 95˚ 17' 2.54" E
The Shift of The Mosque Latitude
Latitude Shift's
The Shift of The Mosque Longitude
Longitude Shift's
Of the drawings, the greatest shift occurred between June 23, 2004 and January 28, 2005. where between the dates there was a very large earthquake. The latitude shifts by 0.73 " to the South and longitude shifts by 0.09" to the West.

There was also a substantial shift, between January 28, 2005 and June 16, 2009, after I searched further, there was also some earthquake that occurred between that date, at Nias, Indonesia in 2005 and at West Sumatra, Indonesia in 2007. The latitude shift by 0.3 " to the North and longitude shifts by 0.61" to the East.

For the other date the shift is not too large, is between 0.05 "- 0.17", because there is no earthquake, the shift according to our, occurs caused by the shift of the earth's plate, but not too large, so it didn't cause an earthquake.

As for the qibla shift, I have calculated the direction of the qibla from some conditions with spherical algorithms calculation, can be seen from the following table:
The Shift of The Mosque qibla
Qibla Direction Shift's
The shifting direction of the qiblah that happened was very small, and almost no effect, less than 0.5". The 0.5" impact was caused by the tsunami that occurred on December 26, 2004. Then the impact of the Nias and West Sumatra earthquakes was less than 0.3", while in other condition, the qibla direction shifted less than 0.2" .

A shift in the direction of qibla is very possible, although the shift is very small, but it should be checked regularly, because if the slight shift is repeated several times it will produce a big shift.

Visit this link for the previous discussion. The Change of Qibla Direction 1

Google Qibla Finder

thumbnail
One of the requirements of a valid prayer is facing the Qibla, which is a Ka'ba in Mecca, Saudi Arabia.

To determine the direction of qibla there are many ways, ranging from traditional to modern. Some use a very traditional tool like a stick, some use simple tools but still have a fairly high accuracy such as Mizwala and Istiwaaini, some also use modern tools as well as Teodholite and Total Station. Use of some of these ways may still cause difficulties if who will determine is a beginner.

Nowadays has come a very useful technology for all human activity, that is smartphone. These benefits also apply to the determination of Qibla direction. Lots of users or developers who already take advantage of this technology, a lot of software / program direction of the Qibla is made for smartphones, let alone android smartphone. There are currently around 500 to 600 Qibla direction apps in the playstore, but if we are going to download the app it will be a bit complicated and confused, especially as the accuracy of the apps itself is untested.

But Google has responded to that, Google has presented a web-based qibla direction program that is highly compatible with smartphones especially android and has a very nice interface. The program is called Google Qibla Finder.

To use it we just need to open the browser, any browser through our smarphone, then slide to the site Google Qibla Finder then we will be taken to the Google Qibla Finder page.


Then please note that the GPS position must be in a state of luminous, so that our android can read the coordinates of where we are. In the next step we will choose the interface language we want, then press the Let's Go!


Then Google Qibla Finder will directly calculate, measure the direction of Qibla and apply it to a map which is the location where we are.


If we flip smartphone towards the front, then the interface will turn into a camera and the line appears which is the direction of our place qibla. We can directly mark the direction of Qiblah on our floor through the line that is in our smartphone camera.

Very practical without having to calculate and bring a tool to measure the direction of Qibla. Can we use wherever we are.

Note: There are some things to watch out for, smarphone must support multiple sensors, such as gps, compass and motion sensors, other than that the camera conditions must also be in normal. For the last step I can not exemplify because my camera is in error.

Good luck!