Earthquake with magnitude of ML 2.3 on date 11-08-2020 and time 01:37:35 (UTC) in region 8 km E Aprigliano (CS)

A magnitude ML 2.3 earthquake occured in region: 8 km E Aprigliano (CS), on

  • 11-08-2020 01:37:35 (UTC)
  • 11-08-2020 03:37:35 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 39.25, 16.44 at 14 km depth.

The earthquake was located by: Bollettino Sismico Italiano INGV.

Search earthquakes: Any within 30 km radius

The values of hypocentral coordinates and magnitude may be revised at a later time as more information becomes available.

Municipalities within 20 km from the epicenter

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Aprigliano CS 8 2890 2890
Serra Pedace CS 9 986 3876
Pietrafitta CS 9 1310 5186
Pedace CS 9 1907 7093
Spezzano Piccolo CS 9 2079 9172
Figline Vegliaturo CS 10 1137 10309
Cellara CS 10 504 10813
Casole Bruzio CS 10 2578 13391
Piane Crati CS 10 1423 14814
Parenti CS 10 2188 17002
Spezzano della Sila CS 10 4541 21543
Mangone CS 10 1891 23434
Celico CS 11 2802 26236
Trenta CS 11 2633 28869
Rovito CS 12 3158 32027
Santo Stefano di Rogliano CS 12 1725 33752
Rogliano CS 12 5637 39389
Lappano CS 13 941 40330
Zumpano CS 14 2570 42900
Marzi CS 14 989 43889
Colosimi CS 15 1247 45136
San Pietro in Guarano CS 15 3663 48799
Paterno Calabro CS 15 1398 50197
Belsito CS 15 923 51120
Dipignano CS 16 4376 55496
Carpanzano CS 16 255 55751
Cosenza CS 16 67546 123297
Bianchi CS 17 1305 124602
Castiglione Cosentino CS 17 2896 127498
Scigliano CS 18 1226 128724
Carolei CS 19 3330 132054
Malito CS 19 783 132837
Soveria Mannelli CZ 19 3076 135913
Pedivigliano CS 19 831 136744

Municipalities with at least 50000 inhabitants

An earthquake occurred to
16 Km E of Cosenza (67546 inhabitants)
32 Km NE of Lamezia Terme (70714 inhabitants)
41 Km NW of Catanzaro (90612 inhabitants)
62 Km W of Crotone (62178 inhabitants)
Recent and historical Seismicity

These maps show the seismicity for different time windows. The earthquake locations reported in these maps are determined in quasi real-time by the personnel on duty in the seismic surveillance center of INGV in Rome. Note that the earthquake source parameters (hypocentral location and magnitude) are the best estimates obstained with the available data and they are adjourned as additional data become available. The source parameters obtained by the personnel on duty are then revised by the group in charge of the INGV Seismic Bulletin (Bollettino Sismico Italiano dell’INGV).

Earthquakes of the last three days (72 hours)

Earthquakes of the last three days (72 hours) *

This map reports the earthquake epicenters located in the 72 hours (3 days) preceding the time of the current earthquake occurrence, using the data acquired by the Italian National Seismic Network and by other collaborating networks in Italy and in the neighbouring countries. The radius of the circle representing the earthquake on the map scales with magnitude. The color depends on the time of occurrence of the earthquakes with respect to the time of generation of the map (red = 1 hour; orange = 24 hours; yellow = 72 hours). The open star shows the epicenter of the current earthquake.
Earthquakes of the last 90 days

Earthquakes of the last 90 days *

This map reports the Magnitudo ≥ 1.0 earthquake epicenters located in the 90 days preceding the time of the current earthquake occurrence, using the data acquired by the Italian National Seismic Network and by other collaborating networks in Italy and in the neighbouring countries. The radii of the circles representing the epicenters on the map scale with magnitude. The color of each circle depends on the time of occurrence of the earthquakes with respect to the time of generation of the map (red = 1 hour; orange = 24 hours; yellow = 72 hours; blue = all other earthquakes). The open star shows the epicenter of the current earthquake.
Earthquakes since 1985

Earthquakes since 1985 *

This map reports the Magnitudo ≥ 2.5 earthquake epicenters located using the data acquired by the Italian National Seismic Network and by other collaborating networks in Italy and in the neighbouring countries. The radii of the circles representing the epicenters on the map scale with magnitude. The color of each circle depends on the time of occurrence of the earthquakes with respect to the time of generation of the map (red = 1 hour; orange = 24 hours; yellow = 72 hours; blue = all other earthquakes). The open star shows the epicenter of the current earthquake.
Earthquakes since 1000 AD until 2014

Earthquakes since 1000 AD until 2014 *

This map shows the epicenters of the historical earthquakes catalogue CPT15 (Catalogo Parametrico dei Terremoti Italiani, 2015 version https://emidius.mi.ingv.it/CPTI15-DBMI15/) with estimated magnitude ≥ 5.0 since 1000 AD until 2014. The epicenters are represented by squares which sides scale with the estimated earthquake magnitude. For earthquakes with magnitude ≥ 6.0, it is also shown the year of occurrence and the magnitude value. The open star shows the epicenter of the current earthquake.
Seismic hazard
Shakemap
Felt maps
The earthquake effects in MCS scale as obtained from the compiled questionnaire

The earthquake effects in MCS scale as obtained from the compiled questionnaire *

This map shows the distribution of the effects of the earthquake on the territory in terms of the MCS (Mercalli-Cancani-Sieberg) intensity scale. The intensities are determined using the data provided in the questionnaire (http://www.haisentitoilterremoto.it/) that are analysed using robust statistical techniques since they are not verified individually. Specifically, the assignment of MCS intensities greater or equal the VI degree of the MCS scale require opportune in situ verification by professional experts. The purple start shows the epicenter. This map is prepared every so often that the population fill in new questionnaires. The number of questionnaires used to determine the map and the date and time of the last adjournment are shown in the upper right part of the panel.
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
Bulletin
Rev1000
ML 2.3 2020-08-11
01:37:35
39.25 16.44 14 2020-11-19
12:36:58
Bollettino Sismico Italiano INGV 82367701
Reviewed
Rev100
ML 2.4 2020-08-11
01:37:35
39.25 16.43 16 2020-08-11
01:57:50
Sala Sismica INGV-Roma 81861551
Reviewed
Rev100
ML 2.4 2020-08-11
01:38:02
39.25 16.43 15 2020-08-11
01:42:07
Sala Sismica INGV-Roma 81860621
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-08-11 01:37:35 ± 0.1
Latitude 39.25 ± 0.01
Longitude 16.44 ± 0.01
Depth (km) 14 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 82367701

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 541
Semi-minor axis of confidence ellipse (meter) 396
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 242
Circular confidence region, given by single value of horizontal uncertainty (meter) 540
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 65
Number of associated phases, regardless of their use for origin computation 22
Number of defining phases 22
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.32
Epicentral distance of station closest to the epicenter (degree) 0.08544
Epicentral distance of station farthest from the epicenter (degree) 0.8013
Number of stations at which the event was observed 14
Number of stations from which data was used for origin computation 14
Magnitudes information

ML:2.4

Field Value
Value 2.4
Uncertainty 0.2
Num. used stations 16
Type of magnitude ML
Reference to an origin 81861551
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-08-11 01:57:50

ML:2.4

Field Value
Value 2.4
Uncertainty 0.2
Num. used stations 16
Type of magnitude ML
Reference to an origin 81860621
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-08-11 01:42:07

ML:2.3

Field Value
Value 2.3
Uncertainty 0.2
Num. used stations 22
Type of magnitude ML
Reference to an origin 82367701
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2020-11-10 08:39:50
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.GRIS.HNE. 2020-08-11T01:37:58.07 0.6 undecidable manual S 318 0.6646 93 0.51 41
IV.PLAC.HHE. 2020-08-11T01:37:51.43 0.3 undecidable manual P 180 0.8013 92 0.91 51
IV.JOPP.HHZ. 2020-08-11T01:37:50.45 0.1 undecidable manual P 214 0.7734 92 0.4 82
IV.MMN.HHE. 2020-08-11T01:37:50.10 0.6 undecidable manual P 332 0.7258 92 0.86 35
IV.TDS.HHZ. 2020-08-11T01:37:49.53 0.3 undecidable manual S 349 0.4155 95 -0.67 60
IV.GRIS.HNE. 2020-08-11T01:37:48.38 0.1 undecidable manual P 318 0.6646 93 0.19 87
XK.GIZZ.HHZ. 2020-08-11T01:37:47.05 0.1 undecidable manual S 213 0.3238 97 -0.45 87
IV.SERS.HHZ. 2020-08-11T01:37:46.49 0.1 undecidable manual S 138 0.2905 99 -0.02 96
MN.TIP.HHZ. 2020-08-11T01:37:45.69 0.1 undecidable manual S 106 0.259 100 0.1 97
IV.CET2.HHZ. 2020-08-11T01:37:44.82 0.1 undecidable manual P 307 0.4641 94 0.05 94
IV.GRI.EHZ. 2020-08-11T01:37:43.78 0.1 undecidable manual P 182 0.429 95 -0.38 87
IV.CAR1.HHZ. 2020-08-11T01:37:43.01 0.1 undecidable manual S 271 0.1745 110 -0.16 96
IV.LADO.EHZ. 2020-08-11T01:37:43.79 0.1 undecidable manual P 85 0.4209 95 -0.24 90
IV.TDS.HHZ. 2020-08-11T01:37:43.43 0.1 undecidable manual P 349 0.4155 95 -0.51 85
IV.CELI.HHZ. 2020-08-11T01:37:42.86 0.1 undecidable manual S 20 0.161 113 0.05 99
XK.GIZZ.HHZ. 2020-08-11T01:37:42.38 0.1 undecidable manual P 213 0.3238 97 0 96
MN.TIP.HHZ. 2020-08-11T01:37:41.43 0.1 positive manual P 106 0.259 100 0.15 96
IV.SERS.HHZ. 2020-08-11T01:37:41.79 0.1 undecidable manual P 138 0.2905 99 -0.02 96
IV.SPS2.HHZ. 2020-08-11T01:37:40.88 0.1 undecidable manual S 298 0.0854 137 -0.09 99
IV.CAR1.HHZ. 2020-08-11T01:37:39.88 0.1 undecidable manual P 271 0.1745 110 0 99
IV.CELI.HHZ. 2020-08-11T01:37:39.84 0.1 undecidable manual P 20 0.161 113 0.17 97
IV.SPS2.HHZ. 2020-08-11T01:37:38.70 0.1 negative manual P 298 0.0854 137 0.09 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.SPS2.HHE. ML:2.1 0.001305 0.42 AML other m 2020-08-11T01:37:41.33
IV.SPS2.HHN. ML:2.4 0.002485 0.34 AML other m 2020-08-11T01:37:41.40
IV.CELI.HHN. ML:2 0.0008385 0.18 AML other m 2020-08-11T01:37:43.06
IV.CELI.HHE. ML:2.3 0.0014 0.3 AML other m 2020-08-11T01:37:43.27
IV.CELI.HNE. ML:2.3 0.001385 0.3 AML other m 2020-08-11T01:37:43.27
IV.CAR1.HHN. ML:2.6 0.002525 0.34 AML other m 2020-08-11T01:37:43.37
IV.CAR1.HNN. ML:2.6 0.002575 0.96 AML other m 2020-08-11T01:37:43.37
IV.CELI.HNN. ML:2 0.000817 0.78 AML other m 2020-08-11T01:37:43.06
IV.CAR1.HHE. ML:2.6 0.00266 1.66 AML other m 2020-08-11T01:37:44.95
IV.CAR1.HNE. ML:2.5 0.00233 1.48 AML other m 2020-08-11T01:37:44.96
MN.TIP.HHN. ML:2.1 0.0006765 0.24 AML other m 2020-08-11T01:37:45.93
MN.TIP.HNN. ML:2.1 0.0006575 0.24 AML other m 2020-08-11T01:37:45.93
MN.TIP.HHE. ML:2.2 0.000811 1.54 AML other m 2020-08-11T01:37:46.87
MN.TIP.HNE. ML:2.2 0.000792 1.54 AML other m 2020-08-11T01:37:46.88
IV.SERS.HNN. ML:1.8 0.00028196705 0.52 AML other m 2020-08-11T01:37:47.42
IV.SERS.HHN. ML:2.2 0.00061692765 0.44 AML other m 2020-08-11T01:37:47.32
IV.SERS.HNE. ML:2.2 0.00062934845 0.44 AML other m 2020-08-11T01:37:47.32
IV.SERS.HHE. ML:1.8 0.00028544385 0.22 AML other m 2020-08-11T01:37:48.36
IV.LADO.EHE. ML:2.2 0.0003962257 0.44 AML other m 2020-08-11T01:37:53.18
IV.LADO.EHN. ML:2.2 0.0003889163 0.38 AML other m 2020-08-11T01:37:55.60
IV.CET2.HHE. ML:2.6 0.0011194512 0.24 AML other m 2020-08-11T01:37:52.82
IV.CET2.HHN. ML:2.9 0.002007189 0.32 AML other m 2020-08-11T01:37:52.43
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
Focal Mechanisms

Focal Mechanisms *

This map reports the focal mechanisms since 1977 in the region. The white and red beach ball symbols are mechanisms determined using the Regional Centroid Moment Tensor (RCMT, http://www.bo.ingv.it/RCMT) and are determined for earthquakes with magnitude larger than 4.5 in the Euro-Mediterranenan area. Occasionally, when there is a good source-receiver geometry of the target earthquake, the RCMT can be obtained also for earthquakes with magnitude larger than 4.0. The blue and white beach ball symbols indicate the mechanisms obtained from application of the Time Domain Moment Tensor (TDMT, http://terremoti.ingv.it/tdmt.html). This technique is used for M ≥ 3.5. The size of the beach ball sysmbol scales with the calculated moment magnitude, Mw.
Download
Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download
Waveforms Seismic signals in miniseed + resp format Download