Alan Kafka
Weston Observatory
Department of Earth and Environmental Sciences
Boston College

On August 5, 2018, the magnitude 6.9 earthquake that occurred in Loloan, Indonesia was recorded by Weston Observatory. Below is a seismogram of this earthquake recorded at Weston Observatory.

For more information about this earthquake see:

Indonesia earthquake: Thousands await rescue after quake hits resort islands Bali and Lombok (CNN)

Additional information about this earthquake can also be found on the U.S. Geological Survey earthquake monitoring website.

Alan Kafka
Weston Observatory
Department of Earth and Environmental Sciences
Boston College

On May 4, 2018, the magnitude 6.9 earthquake that occurred in Hawaii was recorded by Weston Observatory. Below are seismograms of this earthquake recorded at Weston Observatory.

For more information about this earthquake see:

Strong Earthquake Rocks Hawaii (CNN)

Additional information about this earthquake can also be found on the U.S. Geological Survey earthquake monitoring website.

Alan Kafka
Weston Observatory
Department of Earth and Environmental Sciences
Boston College

On January 10, 2018, the magnitude 7.6 earthquake that occurred in Honduras was recorded by Weston Observatory.

Below is the seismogram of this earthquake recorded at Devlin Hall, Boston College.

The faulting mechanism of this earthquake was exactly as expected by geophysical studies of the tectonic motion ​of the Caribbean plate. Geophysics works!

For more information about this earthquake see:

Strong Earthquake Prompts Tsunami Threat Message in Caribbean, Mexico (CNN)

Additional information about this earthquake can also be found on the U.S. Geological Survey earthquake monitoring website.

Alan Kafka
Weston Observatory
Department of Earth and Environmental Sciences
Boston College

On November 30, 2017, a magnitude 4.1 earthquake that occurred in Dover, Delaware was recorded by Weston Observatory. Below is the Weston Observatory seismogram of this earthquake, recorded at Westport, CT, our closest station to this quake. The Delaware earthquake is the big red spike at 16:48 (4:48 local time).

US Geological Survey map of region where this earthquake was felt.

From The Weather Channel: Where the magnitude 4.1 Delaware quake was felt.

Seismic waves from the Dover, Delaware earthquake moving across New England.

For more information about this earthquake see:

Magnitude 4.1 Earthquake Strikes Delaware (USA Today)

Additional information about this earthquake can also be found on the U.S. Geological Survey earthquake monitoring website.

Alan Kafka
Weston Observatory
Department of Earth and Environmental Sciences
Boston College

On November 12 and 13, 2017, two major earthquakes were recorded by Weston Observatory: Magnitude 7.3 in Iraq and magnitude 6.5 in Costa Rica. Below are the seismograms of those earthquakes recorded by our seismograph in the Boston College O’Neill Library.

Visit @Weston_Quakes on Twitter for updates on seismic monitoring by Weston Observatory.

Alan Kafka
Weston Observatory
Department of Earth and Environmental Sciences
Boston College

Our seismograph in the Boston College Alumni Stadium recorded BC and NC State fans “making their own earthquakes”…

Alan Kafka
Weston Observatory
Department of Earth and Environmental Sciences
Boston College

On September 19, 2017, the magnitude 7.1 earthquake that occurred in Mexico was recorded by Weston Observatory. Below is the Weston Observatory seismogram of this earthquake.

Seismogram of magnitude 7.1 earthquake in Mexico, recorded on September 19, 2017 at Weston Observatory, Department of Earth and Environmental Sciences, Boston College.

For more information about this earthquake see:

Major Earthquake Hits Central Mexico (CBS)

Additional information about this earthquake can also be found on the U.S. Geological Survey earthquake monitoring website.

Alan Kafka
Weston Observatory
Department of Earth and Environmental Sciences
Boston College

On September 8, 2017, the magnitude 8.1 earthquake that occurred in Mexico was recorded by Weston Observatory. Below is the seismogram of this earthquake, recorded in Devlin Hall, Department of Earth and Environmental Science, Boston College.

Seismogram of magnitude 8.1 earthquake in Mexico, recorded on September 8, 2017 in Devlin Hall, Department of Earth and Environmental Sciences, Boston College.

For more information about this earthquake see:

Magnitude 8.1 Earthquake Hits Off the Coast of Southern Mexico (CNN)

Additional information about this earthquake can also be found on the U.S. Geological Survey earthquake monitoring web site.

Alan Kafka
Weston Observatory
Department of Earth and Environmental Sciences
Boston College

On September 3, 2017, the magnitude 6.3 (suspected nuclear…) explosion that occurred in North Korea was recorded by Weston Observatory. New England is very far away, so the signal is weak, but it’s there:

Also shown below (From Andy Frassetto) is a nearby station MDJ (Mudanjiang, China), where it is very clearly recorded (red seismogram), and has been clearly identified as a large explosion.

For more information about this explosion see:

North Korea Tests Most Powerful Nuclear Bomb Yet(CNN)

Additional information about this explosion can also be found on the U.S. Geological Survey earthquake monitoring web site.

Alan Kafka
Weston Observatory
Department of Earth and Environmental Sciences
Boston College

On December 17, 2016, a magnitude 7.9 earthquake that occurred in Papua New Guinea was recorded by Weston Observatory.

Papua New Guinea earthquake recorded by educational seismographs in Texas (TX-ESP, E1TX) and in Massachusetts (BC-ESP, WOBC, Weston Observatory).

For more information about the effects of this earthquake, see:

Tsunami alerts canceled following 7.9 earthquake off Papua New Guinea (CNN)

Visit @Weston_Quakes on Twitter for updates on this and other earthquakes.

Additional information about this earthquake can also be found on the U.S. Geological Survey earthquake monitoring web site.