Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.5 on date 15-12-2020 and time 00:52:02 (Italy) in region 8 km S Acri (CS)

A magnitude ML 1.5 earthquake occured in region: 8 km S Acri (CS), on

  • 14-12-2020 23:52:02 (UTC)
  • 15-12-2020 00:52:02 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 39.4170, 16.4060 at 12 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 8 20858 20858
Rose CS 9 4373 25231
Luzzi CS 11 9396 34627
San Pietro in Guarano CS 11 3663 38290
Castiglione Cosentino CS 12 2896 41186
Celico CS 13 2802 43988
Lappano CS 13 941 44929
Rovito CS 14 3158 48087
Spezzano della Sila CS 14 4541 52628
Bisignano CS 15 10203 62831
Spezzano Piccolo CS 15 2079 64910
Zumpano CS 15 2570 67480
Santa Sofia d'Epiro CS 16 2628 70108
Casole Bruzio CS 16 2578 72686
Serra Pedace CS 16 986 73672
Trenta CS 16 2633 76305
Pedace CS 17 1907 78212
San Demetrio Corone CS 17 3559 81771
Longobucco CS 18 3183 84954
Pietrafitta CS 18 1310 86264
San Cosmo Albanese CS 19 591 86855
San Giorgio Albanese CS 19 1432 88287
Cosenza CS 19 67546 155833
Vaccarizzo Albanese CS 19 1125 156958

Municipalities with at least 50000 inhabitants

An earthquake occurred to
19 Km NE of Cosenza (67546 inhabitants)
50 Km N of Lamezia Terme (70714 inhabitants)
59 Km N of Catanzaro (90612 inhabitants)
72 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 1.5 2020-12-14
23:52:02		 39.4172 16.4063 12 2021-02-26
14:56:14		 Bollettino Sismico Italiano INGV 86167121
Reviewed
Rev100 		ML 1.6 2020-12-14
23:52:02		 39.4177 16.4057 13 2020-12-14
23:58:55		 Sala Sismica INGV-Roma 85433231
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-12-14 23:52:02 ± 0.07
Latitude 39.4172 ± 0.0045
Longitude 16.4063 ± 0.0058
Depth (km) 12 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 86167121

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 500
Semi-minor axis of confidence ellipse (meter) 383
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 219
Circular confidence region, given by single value of horizontal uncertainty (meter) 500.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 90
Number of associated phases, regardless of their use for origin computation 23
Number of defining phases 23
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.23
Epicentral distance of station closest to the epicenter (degree) 0.08004
Epicentral distance of station farthest from the epicenter (degree) 0.53510
Number of stations at which the event was observed 12
Number of stations from which data was used for origin computation 12
Magnitudes information

ML:1.5

Field Value
Value 1.5
Uncertainty 0.3
Num. used stations 12
Type of magnitude ML
Reference to an origin 86167121
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2021-01-11 09:55:47

ML:1.6

Field Value
Value 1.6
Uncertainty 0.2
Num. used stations 10
Type of magnitude ML
Reference to an origin 85433231
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-12-14 23:58:55
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.GRIS.HNE. 2020-12-14T23:52:21.61 0.6 undecidable manual S 307 59.3961 92 0.38 44
XK.GIZZ.HHZ. 2020-12-14T23:52:19.14 0.3 undecidable manual S 199 51.4152 92 0.03 72
IV.LADO.EHZ. 2020-12-14T23:52:18.98 0.6 undecidable manual S 107 51.3153 92 -0.11 47
IV.SERS.HHZ. 2020-12-14T23:52:18.08 0.6 undecidable manual S 150 48.7179 92 -0.32 45
XK.ALB1.HHZ. 2020-12-14T23:52:18.48 0.6 undecidable manual S 159 46.62 92 0.65 42
IV.CET2.HHZ. 2020-12-14T23:52:16.10 0.6 undecidable manual S 288 40.626 93 -0.13 48
MN.TIP.HHZ. 2020-12-14T23:52:15.83 0.3 undecidable manual S 131 40.1265 93 -0.26 69
IV.PIPA.HHZ. 2020-12-14T23:52:15.35 0.6 undecidable manual S 78 35.8419 93 0.39 46
IV.GRIS.HNE. 2020-12-14T23:52:13.67 0.6 undecidable manual P 307 59.3961 92 0.18 46
XK.GIZZ.HHZ. 2020-12-14T23:52:12.81 0.1 negative manual P 199 51.4152 92 0.55 86
XK.SELL.HHZ. 2020-12-14T23:52:12.18 0.6 undecidable manual P 158 51.8037 92 -0.14 46
IV.LADO.EHZ. 2020-12-14T23:52:12.19 0.6 undecidable manual P 107 51.3153 92 -0.07 47
IV.TDS.HHZ. 2020-12-14T23:52:12.56 0.3 undecidable manual S 348 27.5502 95 -0.2 72
XK.ALB1.HHZ. 2020-12-14T23:52:11.77 0.3 undecidable manual P 159 46.62 92 0.25 69
IV.SERS.HHZ. 2020-12-14T23:52:11.62 0.1 undecidable manual P 150 48.7179 92 -0.24 91
MN.TIP.HHZ. 2020-12-14T23:52:10.40 0.1 undecidable manual P 131 40.1265 93 -0.13 95
IV.CET2.HHZ. 2020-12-14T23:52:10.57 0.3 undecidable manual P 288 40.626 93 -0.03 73
IV.PIPA.HHZ. 2020-12-14T23:52:09.81 0.1 undecidable manual P 78 35.8419 93 -0.06 97
IV.SPS2.HHZ. 2020-12-14T23:52:09.13 0.3 undecidable manual S 203 15.1737 110 -0.36 71
IV.TDS.HHZ. 2020-12-14T23:52:08.46 0.1 undecidable manual P 348 27.5502 95 -0.14 97
IV.CELI.HHZ. 2020-12-14T23:52:08.24 0.3 undecidable manual S 100 8.88 133 0.17 74
IV.SPS2.HHZ. 2020-12-14T23:52:06.60 0.1 positive manual P 203 15.1737 110 -0.11 100
IV.CELI.HHZ. 2020-12-14T23:52:06.09 0.1 negative manual P 100 8.88 133 0.2 99
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.CELI.HNE. ML:1.9 0.0008939999999999999 0.2 AML other m 2020-12-14T23:52:08.35
IV.CELI.HHE. ML:1.9 0.0008914999999999999 0.2 AML other m 2020-12-14T23:52:08.35
IV.CELI.HHN. ML:1.3 0.00024694640000000003 0.2176 AML other m 2020-12-14T23:52:08.41
IV.CELI.HNN. ML:1.3 0.0002537709 0.2176 AML other m 2020-12-14T23:52:08.41
IV.SPS2.HHN. ML:1.5 0.00027543095 0.3072 AML other m 2020-12-14T23:52:09.37
IV.SPS2.HHE. ML:1.2 0.00012534999999999998 0.12 AML other m 2020-12-14T23:52:09.53
IV.PIPA.HHE. ML:1.6 0.00016499999999999997 0.24 AML other m 2020-12-14T23:52:17.02
IV.CET2.HHE. ML:1.4 0.00008694366 0.1024 AML other m 2020-12-14T23:52:17.30
IV.CET2.HHN. ML:1.7 0.00017380565 0.1536 AML other m 2020-12-14T23:52:17.17
IV.PIPA.HHN. ML:1.5 0.000125 0.16 AML other m 2020-12-14T23:52:18.47
IV.TDS.HHE. ML:0.8 0.000027942271499999997 0.4608 AML other m 2020-12-14T23:52:14.30
IV.TDS.HHN. ML:0.8 0.00002834323 0.256 AML other m 2020-12-14T23:52:12.60
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