.........my earthquake alarm keeps going off tonight and the house shook pretty good about 20 minutes ago.....anyone else feel it? .....there it goes again....Costambar POP.
- Thread starter POP Bad Boy
- Start date
Earthquake Alarm.........
POP Bad Boy said:
Yepp, I felt it too... same time... My computer table started to shake and my dog went under the bed!
I checked on the internet, but found nothing so far on
http://earthquake.usgs.gov/recenteqsww/Maps/region/N_America_eqs.html
Was just going to post and ask if anyone else felt it---
4.5 20 miles NNE of POP.....
http://neic.usgs.gov/neis/bulletin/neic_awap.html
Site now shows 20 miles NNE of Puerto Plata......4.5
http://neic.usgs.gov/neis/bulletin/neic_awap.html
Site now shows 20 miles NNE of Puerto Plata......4.5
Wow. I didn't even know that they had an earthquake alarm. Does it ring before, during, or after the earthquake?
It detects P waves which reach faster than the S waves which you feel. Theoretically, a strong quake about 100 miles away should give you approx 20-30 secs warning (if I remember correctly the write up on it). Small quakes close to you - you almost get no warning. Depth of the quake also plays a factor.
I bought my alarm two years ago after the sept.22nd quake and it worked good with the aftershocks, giving a few secs warning.
During the tremor a few days ago my it went off towards the end of the shaking, which was strange. Maybe the battery needs to be replaced since its been in there over a year.
I bought my alarm two years ago after the sept.22nd quake and it worked good with the aftershocks, giving a few secs warning.
During the tremor a few days ago my it went off towards the end of the shaking, which was strange. Maybe the battery needs to be replaced since its been in there over a year.
Once you been through the terror of a big quake, the aftershocks, and all the false alarms that go with them (powerplant firing up, jet airplane, truck going down the road, dog scratching himself and hitting bed, etc) you will find that it actually gives you peace of mind.
Also, by the volume and consistency of the alarm bell, you can tell if its going to be a small tremor or a big one.
Also, by the volume and consistency of the alarm bell, you can tell if its going to be a small tremor or a big one.