Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.6 on date 31-10-2020 and time 12:37:48 (UTC) in region 5 km E Santo Stefano in Aspromonte (RC)

A magnitude ML 1.6 earthquake occured in region: 5 km E Santo Stefano in Aspromonte (RC), on

  • 31-10-2020 12:37:48 (UTC)
  • 31-10-2020 13:37:48 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 38.1830, 15.8500 at 8 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
Santo Stefano in Aspromonte RC 5 1263 1263
Sant'Alessio in Aspromonte RC 8 343 1606
Delianuova RC 9 3352 4958
Sant'Eufemia d'Aspromonte RC 9 4120 9078
Sinopoli RC 9 2089 11167
Laganadi RC 9 413 11580
Scido RC 10 931 12511
San Roberto RC 10 1750 14261
Calanna RC 11 934 15195
San Procopio RC 12 534 15729
Bagnara Calabra RC 12 10255 25984
Cosoleto RC 13 859 26843
Cardeto RC 13 1641 28484
Santa Cristina d'Aspromonte RC 13 929 29413
Melicuccà RC 14 930 30343
Fiumara RC 14 1018 31361
Scilla RC 14 4964 36325
Roccaforte del Greco RC 16 476 36801
Campo Calabro RC 17 4536 41337
Oppido Mamertina RC 17 5332 46669
Seminara RC 17 2811 49480
Platì RC 18 3812 53292
Bagaladi RC 18 1039 54331
Varapodio RC 19 2160 56491
Villa San Giovanni RC 19 13784 70275
San Lorenzo RC 19 2640 72915
San Luca RC 20 3881 76796
Palmi RC 20 18930 95726
Reggio di Calabria RC 20 183035 278761
Condofuri RC 20 5113 283874

Municipalities with at least 50000 inhabitants

An earthquake occurred to
20 Km E of Reggio di Calabria (183035 inhabitants)
26 Km E of Messina (238439 inhabitants)
87 Km NE of Acireale (52622 inhabitants)
97 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 1.6 2020-10-31
12:37:48		 38.1827 15.8495 8 2021-02-26
14:56:13		 Bollettino Sismico Italiano INGV 86038371
Reviewed
Rev100 		ML 1.6 2020-10-31
12:37:48		 38.1778 15.8497 8 2020-10-31
12:49:36		 Sala Sismica INGV-Roma 84320401
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-10-31 12:37:48 ± 0.07
Latitude 38.1827 ± 0.0045
Longitude 15.8495 ± 0.0046
Depth (km) 8 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 86038371

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 460
Semi-minor axis of confidence ellipse (meter) 164
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 157
Circular confidence region, given by single value of horizontal uncertainty (meter) 460.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 89
Number of associated phases, regardless of their use for origin computation 19
Number of defining phases 19
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) 0.08544
Epicentral distance of station farthest from the epicenter (degree) 1.00454
Number of stations at which the event was observed 13
Number of stations from which data was used for origin computation 13
Magnitudes information

ML:1.6

Field Value
Value 1.6
Uncertainty 0.3
Num. used stations 16
Type of magnitude ML
Reference to an origin 86038371
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2021-01-19 14:06:57

ML:1.6

Field Value
Value 1.6
Uncertainty 0.3
Num. used stations 16
Type of magnitude ML
Reference to an origin 84320401
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-10-31 12:49:36
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
XK.SELL.HHZ. 2020-10-31T12:38:07.77 0.3 undecidable manual P 37 111.4995 50 0.28 61
IV.MPNC.HHE. 2020-10-31T12:38:03.44 0.6 undecidable manual S 265 43.5231 50 0.21 47
IV.NOV.HHZ. 2020-10-31T12:38:00.27 0.3 undecidable manual P 255 64.5909 50 0.02 71
IV.MSRU.HHE. 2020-10-31T12:37:59.12 0.3 undecidable manual S 287 31.0467 105 -0.53 67
IV.AIO.HHE. 2020-10-31T12:37:59.41 0.1 undecidable manual P 247 58.6968 50 0.05 95
IV.PLAC.HHZ. 2020-10-31T12:37:59.35 0.3 undecidable manual P 60 59.1963 50 -0.07 71
IV.MILZ.HHZ. 2020-10-31T12:37:58.60 0.3 undecidable manual P 281 54.8007 50 -0.14 70
IV.JOPP.HHZ. 2020-10-31T12:37:57.32 0.1 undecidable manual P 4 47.1195 50 -0.25 93
IV.MTTG.HHZ. 2020-10-31T12:37:57.09 0.3 undecidable manual S 213 23.8539 109 -0.15 74
IV.MPNC.HHE. 2020-10-31T12:37:56.93 0.3 undecidable manual P 265 43.5231 50 -0.08 73
IV.FERC.HNE. 2020-10-31T12:37:56.19 0.6 undecidable manual P 39 38.5281 50 -0.05 49
IV.SOI.EHZ. 2020-10-31T12:37:55.88 0.6 undecidable manual S 124 21.5673 111 -0.63 44
IV.MSRU.HHE. 2020-10-31T12:37:55.01 0.3 undecidable manual P 287 31.0467 105 0.07 74
IV.SICLA.EHZ. 2020-10-31T12:37:54.22 0.6 undecidable manual S 305 14.3745 120 0 52
IV.MTTG.HHZ. 2020-10-31T12:37:53.82 0.1 undecidable manual P 213 23.8539 109 0.27 96
IV.SOI.EHZ. 2020-10-31T12:37:53.28 0.1 undecidable manual P 124 21.5673 111 0.15 99
MN.CEL.HHZ. 2020-10-31T12:37:52.72 0.3 undecidable manual S 24 9.4794 131 -0.11 77
IV.SICLA.EHZ. 2020-10-31T12:37:52.12 0.1 undecidable manual P 305 14.3745 120 0.31 97
MN.CEL.HHZ. 2020-10-31T12:37:51.21 0.1 undecidable manual P 24 9.4794 131 0.21 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
MN.CEL.HHN. ML:1.9 0.0012829999999999999 0.34 AML other m 2020-10-31T12:37:52.79
MN.CEL.HNN. ML:1.9 0.0012795 0.32 AML other m 2020-10-31T12:37:52.80
MN.CEL.HHE. ML:2.2 0.00221 1.42 AML other m 2020-10-31T12:37:53.13
MN.CEL.HNE. ML:2.2 0.0021849999999999994 1.42 AML other m 2020-10-31T12:37:53.13
IV.SICLA.EHE. ML:1.7 0.0005200000000000001 0.62 AML other m 2020-10-31T12:37:54.37
IV.SICLA.EHN. ML:1.8 0.000776 0.34 AML other m 2020-10-31T12:37:54.58
IV.SOI.EHN. ML:1.4 0.00019250000000000002 0.36 AML other m 2020-10-31T12:37:56.06
IV.SOI.EHE. ML:1.3 0.0001385 0.32 AML other m 2020-10-31T12:37:57.67
IV.MTTG.HHN. ML:1.5 0.00021450000000000004 0.72 AML other m 2020-10-31T12:37:58.77
IV.MTTG.HHE. ML:1.4 0.000152 0.42 AML other m 2020-10-31T12:37:59.37
IV.JOPP.HHN. ML:1.3 0.000054900000000000006 1 AML other m 2020-10-31T12:38:07.14
IV.JOPP.HHE. ML:1.2 0.000050900000000000004 0.4 AML other m 2020-10-31T12:38:07.47
IV.MILZ.HHE. ML:2.1 0.00029600000000000004 0.74 AML other m 2020-10-31T12:38:07.41
IV.MILZ.HHN. ML:2.0 0.000228 0.26 AML other m 2020-10-31T12:38:08.86
IV.PLAC.HHE. ML:1.4 0.00004875 1.42 AML other m 2020-10-31T12:38:09.74
IV.PLAC.HHN. ML:1.3 0.0000378 0.52 AML other m 2020-10-31T12:38:10.96
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