- #1
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A nice piece of history. Really liked the smoked paper!
Can Construction Sites Cause Artificial Earthquakes?
- Thread starter DrClaude
- Start date
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Discussion Overview
The discussion revolves around the potential impact of construction sites on seismic activity, specifically whether heavy machinery used in construction can cause artificial earthquakes. The scope includes both historical context regarding seismic recording methods and contemporary observations related to construction noise affecting seismic systems.
Discussion Character
- Exploratory, Technical explanation, Conceptual clarification
Main Points Raised
- Some participants express appreciation for historical seismic recording methods, such as smoked paper and photographic paper, noting their evolution and challenges.
- One participant shares a personal experience with a seismic drum system that was converted from photographic to an ink-fed system, highlighting advancements in seismic technology.
- A participant mentions the start of a large construction site nearby, suggesting that the heavy machinery is generating significant noise that interferes with their seismic system during working hours.
Areas of Agreement / Disagreement
Participants generally agree on the historical significance of seismic recording methods but do not reach a consensus on whether construction activities can be classified as causing artificial earthquakes. The discussion remains unresolved regarding the specific effects of construction noise on seismic measurements.
Contextual Notes
Limitations include the lack of detailed analysis on the relationship between construction activities and seismic readings, as well as the dependence on subjective experiences regarding noise interference.
- #2
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Yeah, that smoked paper was a very clever idea.
- #3
davenn
Science Advisor
Gold Member
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DrClaude said:
sweet ... thanks for sharing
Smoked paper seismo recording drums became all the rage around the world for many years but it was very messy to use
Then photographic paper became the in-thing. Of course it still had its problems with keeping everything dark till the paper was developed
My first seismic drum was a photographic one that came out of service from the Milford Sound station in SW New Zealand in 1991.
The New Zealand seismological Obs. replaced it with a digital recording system whose output is satellite linked back to the HQ in Wellington city.
I converted this photographic drum system to a more common ( at that time) to a normal paper and capillary - ink fed system
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- #4
davenn
Science Advisor
Gold Member
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ohh and speaking of artificial earthquakes, I have a large construction site started up across the road from home a week ago
It's going to be several blocks of multi-story apartments and the heavy machinery digging the ground for the foundations is
causing so much noise on my seismic system during working hours ...
Dave
It's going to be several blocks of multi-story apartments and the heavy machinery digging the ground for the foundations is
causing so much noise on my seismic system during working hours ...
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