Alan Kafka
@alankafka.bsky.social
Geophysics, Earthquake Science, and Community Science for the Greater Good
bit.ly/A_Kafka_Website
bit.ly/A_Kafka_Website
Magnitude 5.5 earthquake in Bangladesh, recorded by our
Raspberry Shake seismograph in Assam, India.
Raspberry Shake seismograph in Assam, India.
November 21, 2025 at 2:39 PM
Magnitude 5.5 earthquake in Bangladesh, recorded by our
Raspberry Shake seismograph in Assam, India.
Raspberry Shake seismograph in Assam, India.
Small earthquake in New Hampshire. Barely felt, but well-recorded by our Raspberry Shake citizen science seismic network.
November 12, 2025 at 5:35 PM
Small earthquake in New Hampshire. Barely felt, but well-recorded by our Raspberry Shake citizen science seismic network.
Magnitude 6.5 earthquake east of Guadeloupe, recorded across New York City with low-cost Raspberry Shake community seismographs.
USGS: Green alert for shaking-related fatalities and economic losses. There is a low likelihood of casualties and damage
USGS: Green alert for shaking-related fatalities and economic losses. There is a low likelihood of casualties and damage
October 29, 2025 at 3:13 AM
Magnitude 6.5 earthquake east of Guadeloupe, recorded across New York City with low-cost Raspberry Shake community seismographs.
USGS: Green alert for shaking-related fatalities and economic losses. There is a low likelihood of casualties and damage
USGS: Green alert for shaking-related fatalities and economic losses. There is a low likelihood of casualties and damage
Magnitude 6.2 earthquake - Timor Island, Southeast Asia - recorded in Northeast India.
October 27, 2025 at 12:54 PM
Magnitude 6.2 earthquake - Timor Island, Southeast Asia - recorded in Northeast India.
Lively quake in Canada today...
October 20, 2025 at 8:27 PM
Lively quake in Canada today...
Magnitude 2.6 earthquake today in Northern NY State.
October 14, 2025 at 11:07 PM
Magnitude 2.6 earthquake today in Northern NY State.
Very sad 😢tragic explosion in Tennessee 😢
Forensic Seismology: Application of seismology to investigate (and hopefully mitigate the impact of) social, legal, political, and/or security implications of seismic events (usually non-earthquake events).
Forensic Seismology: Application of seismology to investigate (and hopefully mitigate the impact of) social, legal, political, and/or security implications of seismic events (usually non-earthquake events).
October 12, 2025 at 7:37 PM
Very sad 😢tragic explosion in Tennessee 😢
Forensic Seismology: Application of seismology to investigate (and hopefully mitigate the impact of) social, legal, political, and/or security implications of seismic events (usually non-earthquake events).
Forensic Seismology: Application of seismology to investigate (and hopefully mitigate the impact of) social, legal, political, and/or security implications of seismic events (usually non-earthquake events).
Magnitude 7.6 earthquake south of Tierra del Fuego, recorded by our Raspberry Shake seismograph in Assam, India.
October 11, 2025 at 3:39 AM
Magnitude 7.6 earthquake south of Tierra del Fuego, recorded by our Raspberry Shake seismograph in Assam, India.
Magnitude 7.4 earthquake in Philippines, recorded by our Raspberry Shake seismograph in Assam, India.
October 10, 2025 at 1:43 PM
Magnitude 7.4 earthquake in Philippines, recorded by our Raspberry Shake seismograph in Assam, India.
Draft of Chapter 2 of my book "Geoscience and Society from Galileo to the 21st Century" is now available for public access, and you can read it here:
Chapter 2: The Great Lisbon Earthquake of 1755 and the “Age of Science and Reason”
open.substack.com/pub/alankafk...
Chapter 2: The Great Lisbon Earthquake of 1755 and the “Age of Science and Reason”
open.substack.com/pub/alankafk...
Draft of Chapter 2 of my book "Geoscience and Society from Galileo to the 21st Century"
Chapter 2: The Great Lisbon Earthquake of 1755 and the “Age of Science and Reason"
open.substack.com
October 10, 2025 at 1:04 PM
Draft of Chapter 2 of my book "Geoscience and Society from Galileo to the 21st Century" is now available for public access, and you can read it here:
Chapter 2: The Great Lisbon Earthquake of 1755 and the “Age of Science and Reason”
open.substack.com/pub/alankafk...
Chapter 2: The Great Lisbon Earthquake of 1755 and the “Age of Science and Reason”
open.substack.com/pub/alankafk...
Magnitude 6.3 earthquake in Venezuela.
September 26, 2025 at 1:38 AM
Magnitude 6.3 earthquake in Venezuela.
Magnitude 5.5 earthquake today in Assam.
I think our Raspberry Shake at Madhabdev University might be the only nearby recording.
I think our Raspberry Shake at Madhabdev University might be the only nearby recording.
September 15, 2025 at 1:29 AM
Magnitude 5.5 earthquake today in Assam.
I think our Raspberry Shake at Madhabdev University might be the only nearby recording.
I think our Raspberry Shake at Madhabdev University might be the only nearby recording.
Another large earthquake in Kamchatka, recorded across New York City with low-cost raspberryshake.org community seismographs.
USGS: Green alert for shaking-related fatalities. There is a low likelihood of casualties.
USGS: Green alert for shaking-related fatalities. There is a low likelihood of casualties.
September 13, 2025 at 12:18 PM
Another large earthquake in Kamchatka, recorded across New York City with low-cost raspberryshake.org community seismographs.
USGS: Green alert for shaking-related fatalities. There is a low likelihood of casualties.
USGS: Green alert for shaking-related fatalities. There is a low likelihood of casualties.
Magnitude 5.8 earthquake, off coast of Oregon
September 10, 2025 at 12:52 PM
Magnitude 5.8 earthquake, off coast of Oregon
Magnitude 1.8 earthquake: Narragansett, Rhode Island
September 5, 2025 at 4:05 PM
Magnitude 1.8 earthquake: Narragansett, Rhode Island
Magnitude 6.0 earthquake in Afghanistan.
USGS "Orange Alert" - Sad story unfolding...😢
USGS "Orange Alert" - Sad story unfolding...😢
September 1, 2025 at 1:20 PM
Magnitude 6.0 earthquake in Afghanistan.
USGS "Orange Alert" - Sad story unfolding...😢
USGS "Orange Alert" - Sad story unfolding...😢
Magnitude 1.5 earthquake near Concord, NH.
August 27, 2025 at 4:05 PM
Magnitude 1.5 earthquake near Concord, NH.
Draft of Chapter 1 of my book "Geoscience and Society: From Galileo to the 21st Century" is now available for public access, and you can read it here:
Chapter 1: Galileo and the Church: Science, Religion, and Public Policy
alankafka.substack.com/p/draft-of-c...
Chapter 1: Galileo and the Church: Science, Religion, and Public Policy
alankafka.substack.com/p/draft-of-c...
Draft of Chapter 1 of my book "Geoscience and Society: From Galileo to the 21st Century"
"Chapter 1: Galileo and the Church: Science, Religion, and Public Policy"
alankafka.substack.com
August 19, 2025 at 6:26 PM
Draft of Chapter 1 of my book "Geoscience and Society: From Galileo to the 21st Century" is now available for public access, and you can read it here:
Chapter 1: Galileo and the Church: Science, Religion, and Public Policy
alankafka.substack.com/p/draft-of-c...
Chapter 1: Galileo and the Church: Science, Religion, and Public Policy
alankafka.substack.com/p/draft-of-c...
Today's "Alan get a life" seismogram 🙂
Loud noise and vibrations from asphalt paving work about 200 feet from our house.
Loud noise and vibrations from asphalt paving work about 200 feet from our house.
August 19, 2025 at 3:17 AM
Today's "Alan get a life" seismogram 🙂
Loud noise and vibrations from asphalt paving work about 200 feet from our house.
Loud noise and vibrations from asphalt paving work about 200 feet from our house.
Magnitude 5.4 earthquake yesterday near coast of Guatemala
.
USGS: Green alert for shaking-related fatalities and economic losses. There is a low likelihood of casualties and damage.
.
USGS: Green alert for shaking-related fatalities and economic losses. There is a low likelihood of casualties and damage.
August 18, 2025 at 11:41 AM
Magnitude 5.4 earthquake yesterday near coast of Guatemala
.
USGS: Green alert for shaking-related fatalities and economic losses. There is a low likelihood of casualties and damage.
.
USGS: Green alert for shaking-related fatalities and economic losses. There is a low likelihood of casualties and damage.
Magnitude 6.1 earthquake in Turkey.
August 11, 2025 at 6:23 AM
Magnitude 6.1 earthquake in Turkey.
Exploring the potential of naturally occurring "white" hydrogen as a clean and sustainable energy source.
August 10, 2025 at 3:51 PM
Exploring the potential of naturally occurring "white" hydrogen as a clean and sustainable energy source.
I published this back in 2000, and I think it's still as relevant today as it was back then:
"Public Misconceptions About Faults and Earthquakes in the Eastern United States: Is it Our Own Fault?" (Click on link below to read the article.)
open.substack.com/pub/alankafk...
"Public Misconceptions About Faults and Earthquakes in the Eastern United States: Is it Our Own Fault?" (Click on link below to read the article.)
open.substack.com/pub/alankafk...
I published this back in 2000, and I think it's still as relevant today, as it was back then: "Public Misconceptions About Faults and Earthquakes in the Eastern United States: Is it Our Own Fault?"
I published this way back in 2000, and I think it's still just as relevant today as it was back then:
open.substack.com
August 9, 2025 at 4:18 PM
I published this back in 2000, and I think it's still as relevant today as it was back then:
"Public Misconceptions About Faults and Earthquakes in the Eastern United States: Is it Our Own Fault?" (Click on link below to read the article.)
open.substack.com/pub/alankafk...
"Public Misconceptions About Faults and Earthquakes in the Eastern United States: Is it Our Own Fault?" (Click on link below to read the article.)
open.substack.com/pub/alankafk...
This went right over my head...
August 8, 2025 at 7:37 PM
This went right over my head...
I have seen news reports about the recent earthquakes in New Jersey, saying that the current earthquake activity in NY/NJ is higher than in California. So, I checked, and it isn't...
August 8, 2025 at 3:18 AM
I have seen news reports about the recent earthquakes in New Jersey, saying that the current earthquake activity in NY/NJ is higher than in California. So, I checked, and it isn't...