Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.3 on date 17-12-2020 and time 04:46:30 (Italy) in region 5 km NE Santo Stefano in Aspromonte (RC)

A magnitude ML 1.3 earthquake occured in region: 5 km NE Santo Stefano in Aspromonte (RC), on

  • 17-12-2020 03:46:30 (UTC)
  • 17-12-2020 04:46:30 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 38.2040, 15.8160 at 16 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.

Hai sentito il terremoto? Clicca qui

Did you feel it? Fill in the questionnaire.

Municipalities within 20 km from the epicenter

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Santo Stefano in Aspromonte RC 5 1263 1263
Sant'Alessio in Aspromonte RC 6 343 1606
San Roberto RC 7 1750 3356
Laganadi RC 7 413 3769
Sant'Eufemia d'Aspromonte RC 7 4120 7889
Calanna RC 8 934 8823
Sinopoli RC 9 2089 10912
Bagnara Calabra RC 9 10255 21167
Delianuova RC 10 3352 24519
Scilla RC 10 4964 29483
Fiumara RC 11 1018 30501
San Procopio RC 11 534 31035
Scido RC 11 931 31966
Melicuccà RC 13 930 32896
Cosoleto RC 13 859 33755
Campo Calabro RC 14 4536 38291
Cardeto RC 14 1641 39932
Santa Cristina d'Aspromonte RC 15 929 40861
Seminara RC 16 2811 43672
Villa San Giovanni RC 16 13784 57456
Palmi RC 17 18930 76386
Oppido Mamertina RC 18 5332 81718
Reggio di Calabria RC 18 183035 264753
Roccaforte del Greco RC 19 476 265229
Varapodio RC 19 2160 267389
Bagaladi RC 20 1039 268428

Municipalities with at least 50000 inhabitants

An earthquake occurred to
18 Km NE of Reggio di Calabria (183035 inhabitants)
23 Km E of Messina (238439 inhabitants)
87 Km NE of Acireale (52622 inhabitants)
96 Km SW of Lamezia Terme (70714 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 1.3 2020-12-17
03:46:30		 38.2042 15.8162 16 2021-02-26
14:56:16		 Bollettino Sismico Italiano INGV 86502031
Reviewed
Rev100 		ML 1.3 2020-12-17
03:46:30		 38.2062 15.8213 17 2020-12-17
04:02:42		 Sala Sismica INGV-Roma 85486791
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-12-17 03:46:30 ± 0.07
Latitude 38.2042 ± 0.0045
Longitude 15.8162 ± 0.0034
Depth (km) 16 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 86502031

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 421
Semi-minor axis of confidence ellipse (meter) 232
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 179
Circular confidence region, given by single value of horizontal uncertainty (meter) 420.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 118
Number of associated phases, regardless of their use for origin computation 14
Number of defining phases 14
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.15
Epicentral distance of station closest to the epicenter (degree) 0.08274
Epicentral distance of station farthest from the epicenter (degree) 0.54589
Number of stations at which the event was observed 8
Number of stations from which data was used for origin computation 8
Magnitudes information

ML:1.3

Field Value
Value 1.3
Uncertainty 0.1
Num. used stations 10
Type of magnitude ML
Reference to an origin 86502031
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2021-01-23 17:05:56

ML:1.3

Field Value
Value 1.3
Uncertainty 0.1
Num. used stations 10
Type of magnitude ML
Reference to an origin 85486791
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-12-17 04:02:42
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.JOPP.HHE. 2020-12-17T03:46:44.65 0.6 undecidable manual S 8 45.0216 99 -0.36 44
IV.MPNC.HHZ. 2020-12-17T03:46:43.96 0.3 undecidable manual S 261 40.9257 101 0.04 72
IV.PLAC.HHE. 2020-12-17T03:46:41.46 0.3 undecidable manual P 63 60.5949 96 0.25 66
IV.MSRU.HHZ. 2020-12-17T03:46:40.33 0.3 undecidable manual S 284 27.6501 108 -0.15 71
IV.AIO.HHE. 2020-12-17T03:46:40.85 0.3 undecidable manual P 243 57.0984 97 0.17 68
IV.SOI.EHZ. 2020-12-17T03:46:39.68 0.6 undecidable manual S 125 25.3524 111 -0.23 47
IV.JOPP.HHE. 2020-12-17T03:46:38.82 0.3 undecidable manual P 8 45.0216 99 -0.02 71
IV.MPNC.HHZ. 2020-12-17T03:46:38.24 0.1 undecidable manual P 261 40.9257 101 0.03 95
MN.CEL.HHZ. 2020-12-17T03:46:36.46 0.1 undecidable manual S 47 9.1797 145 0.04 100
IV.MSRU.HHZ. 2020-12-17T03:46:36.15 0.3 undecidable manual P 284 27.6501 108 -0.08 72
IV.SICLA.EHZ. 2020-12-17T03:46:36.69 0.3 undecidable manual S 303 10.5783 140 0.04 75
IV.SOI.EHZ. 2020-12-17T03:46:35.71 0.1 undecidable manual P 125 25.3524 111 -0.19 95
IV.SICLA.EHZ. 2020-12-17T03:46:34.08 0.1 undecidable manual P 303 10.5783 140 0.07 100
MN.CEL.HHZ. 2020-12-17T03:46:34.02 0.1 negative manual P 47 9.1797 145 0.14 98
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
MN.CEL.HHN. ML:1.2 0.000151 0.38 AML other m 2020-12-17T03:46:36.68
MN.CEL.HNN. ML:1.2 0.0001303 0.36 AML other m 2020-12-17T03:46:36.50
IV.SICLA.EHN. ML:1.4 0.0002125 0.22 AML other m 2020-12-17T03:46:36.83
MN.CEL.HNE. ML:1.2 0.0001595 0.42 AML other m 2020-12-17T03:46:36.54
MN.CEL.HHE. ML:1.2 0.00013900000000000002 0.44 AML other m 2020-12-17T03:46:36.53
IV.SICLA.EHE. ML:1.4 0.000216 0.3 AML other m 2020-12-17T03:46:36.98
IV.MSRU.HHN. ML:1.1 0.0000655 0.88 AML other m 2020-12-17T03:46:41.00
IV.MSRU.HHE. ML:1.3 0.0000975 1.6 AML other m 2020-12-17T03:46:41.15
IV.MPNC.HHN. ML:1.2 0.0000506 0.48 AML other m 2020-12-17T03:46:44.66
IV.MPNC.HHE. ML:1.3 0.000059949999999999994 1.48 AML other m 2020-12-17T03:46:45.07
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