Northern Argentina Records Five Earthquakes Today Up to Magnitude 4.7
Multiple earthquakes struck various global locations over recent days, including a series of five tremors in northern Argentina with the strongest reaching magnitude 4.7, alongside smaller events in Alaska, Puerto Rico, and a Kamchatka quake linked by seismologists to an ancient volcano eruption. These earthquakes today reflect ongoing monitoring by agencies such as Inpres and USGS.
Recent Seismic Activity in Northern Argentina
Five earthquakes occurred in northern Argentina between October 17 and 18, with magnitudes ranging from 2.5 to 4.7 and depths from 5 km to 209 km. [4] The strongest Argentine quake was a magnitude 4.7 event centered in Salta at a depth of 209 km. [4] A shallow magnitude 3.4 quake struck Catamarca at just 5 km depth. [4] The first occurred on Saturday at 3:36 with epicenter in Jujuy, 24 kilometers north of Catúa, 57 kilometers southwest of Susques and 87 kilometers northwest of San Antonio de los Cobres, magnitude 3.1 at 184 kilometers depth. [4] That same day at 14:24 the magnitude 4.7 event took place with epicenter in Salta, 67 kilometers southeast of Incahuasi, 76 kilometers west of Cafayate and 78 kilometers east of Antofagasta de la Sierra at 209 kilometers depth. [4] At 19:37 another event hit Catamarca, 66 kilometers east of Antofagasta de la Sierra, 73 kilometers southeast of Incahuasi and 80 kilometers west of Cafayate, magnitude 3.4 at 5 kilometers depth. [4] Near midnight at 23:33 a magnitude 3.8 quake occurred in Salta, 40 kilometers south of Catúa, 53 kilometers northeast of Tolar Grande and 71 kilometers west of San Antonio de los Cobres at 193 kilometers depth. [4] Finally at 1:06 on Sunday a magnitude 2.5 event was detected in La Rioja, 40 kilometers southwest of Chepes, 59 kilometers west of Ulapes and 77 kilometers east of Bermejo at 126 kilometers depth. [4] All five events were reported by Inpres. [4]
Alaska Earthquakes Detected by USGS
Northern Argentina experienced five earthquakes with the strongest measuring magnitude 4.7. — Source: gdelt
USGS recorded a magnitude 3.3 quake 46 km WSW of Ivanof Bay, Alaska at 176.2 km depth. [2] A magnitude 2.7 quake occurred 120 km SE of Ugashik, Alaska at 13.1 km depth. [5] These two Alaska events were documented separately by USGS with precise location and depth details provided in each report. [2] [5] The Ivanof Bay event reached magnitude 3.3 while the Ugashik event measured magnitude 2.7, illustrating variation in recorded seismic signals from the region. [2] [5]
Puerto Rico Tremor
A magnitude 2.9 quake hit 25 km WNW of Puerto Real, Puerto Rico at 5.9 km depth. [3] This event was recorded by USGS with the given magnitude, distance from Puerto Real and focal depth of 5.9 km. [3]
Kamchatka Quake Tied to Ancient Volcano
Seismologists linked a Kamchatka earthquake to the eruption of an ancient volcano. [1] The connection was reported directly in coverage of the event on the Kamchatka peninsula. [1]
Context on Earthquake Depths and Magnitudes
The Argentine series included depths from 5 km to 209 km with magnitudes between 2.5 and 4.7. [4] The Alaska Ivanof Bay quake reached 176.2 km depth at magnitude 3.3 while the Ugashik event was at 13.1 km depth with magnitude 2.7. [2] [5] The Puerto Rico tremor occurred at 5.9 km depth with magnitude 2.9. [3] Across these events the shallowest was the Catamarca quake at 5 km and the deepest was the Salta quake at 209 km. [4] Magnitudes remained modest in all cases documented by the reporting agencies. [2] [3] [4] [5]
What to watch next: Continued reporting from Inpres on northern Argentina activity and USGS updates on Alaska and Puerto Rico events remain available alongside any further details on the Kamchatka linkage to ancient volcanic activity.
