Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.2 on date 21-07-2020 and time 01:34:56 (Italy) in region 3 km N Acri (CS)

A magnitude ML 1.2 earthquake occured in region: 3 km N Acri (CS), on

  • 20-07-2020 23:34:56 (UTC)
  • 21-07-2020 01:34:56 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 39.5170, 16.3800 at 11 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.

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Municipalities within 20 km from the epicenter

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Acri CS 3 20858 20858
Santa Sofia d'Epiro CS 5 2628 23486
San Demetrio Corone CS 6 3559 27045
Bisignano CS 8 10203 37248
San Cosmo Albanese CS 8 591 37839
Vaccarizzo Albanese CS 9 1125 38964
San Giorgio Albanese CS 10 1432 40396
Luzzi CS 11 9396 49792
Tarsia CS 15 2054 51846
Rose CS 15 4373 56219
Corigliano Calabro CS 15 40427 96646
Terranova da Sibari CS 16 5100 101746
Spezzano Albanese CS 17 7028 108774
San Lorenzo del Vallo CS 18 3394 112168
Castiglione Cosentino CS 20 2896 115064
San Pietro in Guarano CS 20 3663 118727

Municipalities with at least 50000 inhabitants

An earthquake occurred to
27 Km NE of Cosenza (67546 inhabitants)
60 Km N of Lamezia Terme (70714 inhabitants)
70 Km N of Catanzaro (90612 inhabitants)
80 Km NW of Crotone (62178 inhabitants)
Recent and historical seismicity
Seismic hazard
Shakemap
Felt maps
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
Bulletin
Rev1000 		ML 1.2 2020-07-20
23:34:56		 39.517 16.3797 11 2020-11-19
12:37:06		 Bollettino Sismico Italiano INGV 84257771
Reviewed
Rev100 		ML 1.2 2020-07-20
23:34:56		 39.5218 16.3673 9 2020-07-20
23:41:24		 Sala Sismica INGV-Roma 81203491
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-07-20 23:34:56 ± 0.04
Latitude 39.5170 ± 0.0018
Longitude 16.3797 ± 0.0047
Depth (km) 11 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 84257771

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 373
Semi-minor axis of confidence ellipse (meter) 148
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 65
Circular confidence region, given by single value of horizontal uncertainty (meter) 370.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 120
Number of associated phases, regardless of their use for origin computation 19
Number of defining phases 17
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.11
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.56747
Number of stations at which the event was observed 13
Number of stations from which data was used for origin computation 11
Magnitudes information

ML:1.2

Field Value
Value 1.2
Uncertainty 0.2
Num. used stations 14
Type of magnitude ML
Reference to an origin 84257771
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2020-10-30 10:15:27

ML:1.2

Field Value
Value 1.2
Uncertainty 0.2
Num. used stations 14
Type of magnitude ML
Reference to an origin 81203491
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-07-20 23:41:24
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.MTMR.EHZ. 2020-07-20T23:35:50.41 3.0 undecidable manual Sg 3.88 0
IV.IST3.HHZ. 2020-07-20T23:35:31.93 3.0 undecidable manual S -0.1 0
IV.SALB.HHZ. 2020-07-20T23:35:09.45 0.6 undecidable manual S 356 40.0266 50 -0.07 48
IV.CET2.HHZ. 2020-07-20T23:35:08.80 0.6 undecidable manual S 272 36.4413 50 0.25 46
IV.SERS.HHZ. 2020-07-20T23:35:07.04 0.1 undecidable manual P 153 59.5959 50 0.07 92
XK.SELL.HHZ. 2020-07-20T23:35:07.71 0.3 undecidable manual P 160 62.9925 50 0.22 67
IV.CAR1.HHZ. 2020-07-20T23:35:07.41 0.3 undecidable manual S 206 32.6451 50 -0.13 72
IV.LADO.EHE. 2020-07-20T23:35:06.75 0.3 undecidable manual P 116 57.498 50 0.1 69
MN.TIP.HHN. 2020-07-20T23:35:05.41 0.3 undecidable manual P 139 49.617 50 -0.02 71
IV.GRIS.HNE. 2020-07-20T23:35:05.68 0.3 undecidable manual P 299 51.4152 50 -0.02 71
IV.SPS2.HHZ. 2020-07-20T23:35:05.28 0.6 undecidable manual S 188 25.3524 50 -0.31 47
IV.TDS.HHZ. 2020-07-20T23:35:03.17 0.6 undecidable manual S 347 16.2726 124 0.01 51
IV.CELI.HHZ. 2020-07-20T23:35:03.22 0.6 undecidable manual S 139 16.872 123 -0.1 50
IV.CET2.HHZ. 2020-07-20T23:35:03.44 0.1 undecidable manual P 272 36.4413 50 0.04 97
IV.SALB.HHZ. 2020-07-20T23:35:03.83 0.3 undecidable manual P 356 40.0266 50 -0.13 71
IV.CAR1.HHZ. 2020-07-20T23:35:02.87 0.1 undecidable manual P 206 32.6451 50 0.06 97
IV.SPS2.HHZ. 2020-07-20T23:35:01.60 0.1 undecidable manual P 188 25.3524 50 -0.08 98
IV.TDS.HHZ. 2020-07-20T23:35:00.22 0.1 undecidable manual P 347 16.2726 124 -0.07 100
IV.CELI.HHZ. 2020-07-20T23:35:00.44 0.1 undecidable manual P 139 16.872 123 0.06 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.TDS.HHN. ML:1.1 0.00012020000000000001 0.84 AML other m 2020-07-20T23:35:03.52
IV.CELI.HHN. ML:1.3 0.00017099999999999998 0.4 AML other m 2020-07-20T23:35:03.52
IV.TDS.HHE. ML:0.9 0.00007664999999999999 0.48 AML other m 2020-07-20T23:35:03.29
IV.CELI.HHE. ML:1.3 0.000155 1.16 AML other m 2020-07-20T23:35:03.33
IV.SPS2.HHE. ML:1.1 0.00007155 0.24 AML other m 2020-07-20T23:35:06.67
IV.SPS2.HHN. ML:1.1 0.00007185 1.66 AML other m 2020-07-20T23:35:06.02
IV.CAR1.HHN. ML:1.2 0.0000715 0.32 AML other m 2020-07-20T23:35:08.46
IV.CET2.HHN. ML:1.9 0.000322 1 AML other m 2020-07-20T23:35:09.72
IV.CET2.HHE. ML:1.6 0.00015900000000000002 0.74 AML other m 2020-07-20T23:35:09.56
IV.SALB.HHE. ML:1.5 0.0001175 1.82 AML other m 2020-07-20T23:35:09.00
IV.SALB.HHN. ML:1.1 0.0000449 1.28 AML other m 2020-07-20T23:35:10.83
IV.CAR1.HHE. ML:1.3 0.0000953 1.74 AML other m 2020-07-20T23:35:10.95
IV.SERS.HHE. ML:1.1 0.000027300000000000003 0.22 AML other m 2020-07-20T23:35:18.41
IV.SERS.HHN. ML:1.1 0.000024449999999999998 0.56 AML other m 2020-07-20T23:35:19.11
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