Earthquake with magnitude of ML 1.1 on date 20-07-2021 and time 00:21:08 (UTC) in region Costa Calabra nord occidentale (Cosenza)

A magnitude ML 1.1 earthquake occured in region: Costa Calabra nord occidentale (Cosenza), on

  • 20-07-2021 00:21:08 (UTC)
  • 20-07-2021 02:21:08 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 39.456, 15.922 at 62 km depth.

The earthquake was located by: Sala Sismica INGV-Roma.

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
Acquappesa CS 5 1907 1907
Guardia Piemontese CS 7 1911 3818
Cetraro CS 7 10128 13946
Fuscaldo CS 10 8140 22086
Bonifati CS 15 2858 24944
Paola CS 15 16013 40957
San Martino di Finita CS 16 1100 42057
Fagnano Castello CS 16 3885 45942
Sangineto CS 17 1338 47280
Rota Greca CS 17 1156 48436
Cerzeto CS 18 1373 49809
San Benedetto Ullano CS 18 1555 51364
Mongrassano CS 18 1607 52971
Lattarico CS 19 4013 56984
Belvedere Marittimo CS 19 9371 66355
Sant'Agata di Esaro CS 19 1890 68245
Santa Caterina Albanese CS 19 1222 69467
Malvito CS 20 1795 71262
San Lucido CS 20 6047 77309
Torano Castello CS 20 4614 81923

Municipalities with at least 50000 inhabitants

An earthquake occurred to
34 Km NW of Cosenza (67546 inhabitants)
63 Km NW of Lamezia Terme (70714 inhabitants)
84 Km NW of Catanzaro (90612 inhabitants)
Recent and historical seismicity
Seismic hazard
Shakemap
Felt maps
Preliminary map of the earthquake effects from the web questionnaire

Preliminary map of the earthquake effects from the web 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
Reviewed
Rev100
ML 1.1 2021-07-20
00:21:08
39.4563 15.9225 63 2021-07-20
00:28:56
Sala Sismica INGV-Roma 92971401
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-07-20 00:21:08 ± 0.26
Latitude 39.4563 ± 0.0099
Longitude 15.9225 ± 0.0210
Depth (km) 63 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 92971401

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1478
Semi-minor axis of confidence ellipse (meter) 1076
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 267
Circular confidence region, given by single value of horizontal uncertainty (meter) 1480
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 167
Number of associated phases, regardless of their use for origin computation 21
Number of defining phases 18
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.22
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.84986
Number of stations at which the event was observed 14
Number of stations from which data was used for origin computation 11
Magnitude information

ML:1.1

Field Value
Value 1.1
Uncertainty 0.3
Num. used stations 12
Type of magnitude ML
Reference to an origin 92971401
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-07-20 00:28:56
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.IOCA.HHZ. 2021-07-20T00:22:12.46 3.0 undecidable manual Sg 0.54 0
IV.USI.HHZ. 2021-07-20T00:21:42.43 3.0 positive manual Pg -0.39 0
IX.SCL3.EHZ.02 2021-07-20T00:21:33.08 3.0 negative manual Pg 2.45 0
MN.CUC.HHZ. 2021-07-20T00:21:30.43 0.6 undecidable manual S 351 0.5432 128 -0.42 50
IV.GIZZ.HHZ. 2021-07-20T00:21:30.56 0.6 undecidable manual S 155 0.5252 129 0.05 54
IV.CELI.HHZ. 2021-07-20T00:21:29.80 0.6 undecidable manual S 97 0.456 134 0.54 51
IV.SPS2.HHZ. 2021-07-20T00:21:27.37 0.3 undecidable manual S 117 0.3615 141 -0.37 79
IV.GRIS.EHZ. 2021-07-20T00:21:26.77 0.6 undecidable manual S 349 0.2887 148 0.05 57
IV.CAR1.HHZ. 2021-07-20T00:21:26.52 0.6 undecidable manual S 132 0.3013 147 -0.37 54
IV.CET2.HHZ. 2021-07-20T00:21:25.11 0.6 undecidable manual S 19 0.0764 171 0.2 57
IV.SERS.HHZ. 2021-07-20T00:21:24.19 1.0 undecidable manual P 125 0.7267 118 0.66 23
IV.JOPP.HHZ. 2021-07-20T00:21:24.87 0.1 undecidable manual P 182 0.8499 113 -0.19 100
MN.TIP.HNZ. 2021-07-20T00:21:23.34 1.0 undecidable manual P 113 0.7033 119 0.09 27
IV.GIZZ.HHZ. 2021-07-20T00:21:21.31 0.3 undecidable manual P 155 0.5252 129 0.11 81
MN.CUC.HHZ. 2021-07-20T00:21:21.19 1.0 positive manual P 351 0.5432 128 -0.21 26
IV.CELI.HHZ. 2021-07-20T00:21:20.60 1.0 negative manual P 97 0.456 134 0.12 28
IV.CAR1.HHZ. 2021-07-20T00:21:19.18 0.6 positive manual P 132 0.3013 147 0.07 57
IV.GRIS.EHZ. 2021-07-20T00:21:19.20 1.0 undecidable manual P 349 0.2887 148 0.18 28
IV.TDS.HHZ. 2021-07-20T00:21:19.54 0.3 undecidable manual P 57 0.3795 140 -0.21 80
IV.SPS2.HHZ. 2021-07-20T00:21:19.47 1.0 undecidable manual P 117 0.3615 141 -0.13 28
IV.CET2.HHZ. 2021-07-20T00:21:18.44 0.3 undecidable manual P 19 0.0764 171 0.47 81
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.CET2.HHN. ML:1.7 9.93E-5 0.32 AML other m 2021-07-20T00:21:25.59
IV.CET2.HHE. ML:1.5 6.5E-5 0.42 AML other m 2021-07-20T00:21:26.31
IV.GRIS.EHE. ML:1.4 4.285E-5 0.98 AML other m 2021-07-20T00:21:27.18
IV.GRIS.EHN. ML:1.4 4.635E-5 0.86 AML other m 2021-07-20T00:21:27.99
IV.SPS2.HHN. ML:0.8 1.1055E-5 0.28 AML other m 2021-07-20T00:21:31.15
IV.SPS2.HHE. ML:0.8 1.097E-5 0.32 AML other m 2021-07-20T00:21:31.04
MN.CUC.HHN. ML:0.6 7.1074685E-6 0.64 AML other m 2021-07-20T00:21:30.91
MN.CUC.HHE. ML:0.9 9.133637E-6 0.84 AML other m 2021-07-20T00:21:30.67
IV.CAR1.HNE. ML:1.1 1.8699568E-5 0.25 AML other m 2021-07-20T00:21:27.56
IV.CAR1.HNN. ML:1.3 2.963944E-5 0.51 AML other m 2021-07-20T00:21:27.07
IV.CAR1.HHE. ML:0.5 6.5680036E-6 0.1 AML other m 2021-07-20T00:21:27.01
IV.CAR1.HHN. ML:1 1.3157705E-5 0.72 AML other m 2021-07-20T00:21:26.71
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
Download
Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download