This photo shows the plate tectonic boundaries and how earthquakes, tsunamis and volcanic eruptions happen.
This picture shows a diagram of how an earthquake is caused.
Before an earthquake occurs have a fire extinguisher, first aid kit, a battery powered radio, and extra batteries. Learn how to turn off the gas, water and electricity. If your family is seperated during the earthquake, plan a point to meet up after the earthquake.
During an earthquake STAY CALM, don't use matches, candles or any sort of flame. Don't use elevators, if your in a car, stay inside the car until the earthquake is finished.
After an earthquake occurs check yourself and others do injuries, provide first aid for anyone that needs it. Check water, gas and electric lines for any damage. Turn on your radio, don't use your phone unless it's an emergency. Stay out of damaged buildings.
How and why and Earthquake would occur in Northern Iran? It is likely that an earthquake would occur in Northern Iran because, the Iranian plate is an earthquake zone. A converging boundary is surrounding the Iranian plate.