Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.7 on date 25-10-2020 and time 08:56:51 (Italy) in region 5 km E Santo Stefano in Aspromonte (RC)

A magnitude ML 1.7 earthquake occured in region: 5 km E Santo Stefano in Aspromonte (RC), on

  • 25-10-2020 07:56:51 (UTC)
  • 25-10-2020 08:56:51 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 38.1810, 15.8440 at 7 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
Laganadi RC 9 413 2019
Sant'Eufemia d'Aspromonte RC 9 4120 6139
Delianuova RC 9 3352 9491
Sinopoli RC 10 2089 11580
San Roberto RC 10 1750 13330
Scido RC 11 931 14261
Calanna RC 11 934 15195
San Procopio RC 12 534 15729
Bagnara Calabra RC 12 10255 25984
Cardeto RC 13 1641 27625
Cosoleto RC 13 859 28484
Fiumara RC 14 1018 29502
Santa Cristina d'Aspromonte RC 14 929 30431
Scilla RC 14 4964 35395
Melicuccà RC 14 930 36325
Roccaforte del Greco RC 16 476 36801
Campo Calabro RC 17 4536 41337
Bagaladi RC 17 1039 42376
Seminara RC 18 2811 45187
Oppido Mamertina RC 18 5332 50519
Platì RC 18 3812 54331
Villa San Giovanni RC 19 13784 68115
San Lorenzo RC 19 2640 70755
Reggio di Calabria RC 19 183035 253790
Varapodio RC 19 2160 255950
Condofuri RC 20 5113 261063
Palmi RC 20 18930 279993

Municipalities with at least 50000 inhabitants

An earthquake occurred to
19 Km E of Reggio di Calabria (183035 inhabitants)
25 Km E of Messina (238439 inhabitants)
87 Km NE of Acireale (52622 inhabitants)
98 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 1.7 2020-10-25
07:56:51		 38.1812 15.8442 7 2021-02-26
14:56:19		 Bollettino Sismico Italiano INGV 87208851
Reviewed
Rev100 		ML 1.7 2020-10-25
07:56:51		 38.1788 15.8433 6 2020-10-25
08:01:58		 Sala Sismica INGV-Roma 84110861
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-10-25 07:56:51 ± 0.09
Latitude 38.1812 ± 0.0054
Longitude 15.8442 ± 0.0057
Depth (km) 7 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 87208851

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 620
Semi-minor axis of confidence ellipse (meter) 166
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 175
Circular confidence region, given by single value of horizontal uncertainty (meter) 620.0
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 15
Number of defining phases 15
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.28
Epicentral distance of station closest to the epicenter (degree) 0.08813
Epicentral distance of station farthest from the epicenter (degree) 0.53779
Number of stations at which the event was observed 9
Number of stations from which data was used for origin computation 9
Magnitudes information

ML:1.7

Field Value
Value 1.7
Uncertainty 0.2
Num. used stations 16
Type of magnitude ML
Reference to an origin 87208851
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2021-02-24 14:03:47

ML:1.7

Field Value
Value 1.7
Uncertainty 0.2
Num. used stations 16
Type of magnitude ML
Reference to an origin 84110861
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-10-25 08:01:58
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.PLAC.HHZ. 2020-10-25T07:57:11.16 0.6 undecidable manual S 60 59.6958 50 0.76 39
IV.PLAC.HHZ. 2020-10-25T07:57:02.19 0.3 undecidable manual P 60 59.6958 50 -0.03 71
IV.AIO.HHN. 2020-10-25T07:57:01.82 0.3 undecidable manual P 247 58.1973 50 -0.18 69
IV.MSRU.HHZ. 2020-10-25T07:57:01.56 0.6 undecidable manual S 288 30.6471 102 -0.38 46
IV.MTTG.HHZ. 2020-10-25T07:56:59.49 0.6 undecidable manual S 213 23.4543 106 0 51
IV.JOPP.HHZ. 2020-10-25T07:56:59.92 0.3 undecidable manual P 4 47.3193 50 -0.4 67
IV.FERC.HNN. 2020-10-25T07:56:58.55 0.6 undecidable manual P 39 38.9277 100 -0.41 45
IV.SOI.EHZ. 2020-10-25T07:56:58.34 0.6 undecidable manual S 123 21.867 107 -0.64 43
IV.MSRU.HHZ. 2020-10-25T07:56:57.28 0.1 undecidable manual P 288 30.6471 102 -0.05 99
IV.SICLA.EHZ. 2020-10-25T07:56:56.44 0.6 undecidable manual S 306 14.0748 115 0 52
IV.MTTG.HHZ. 2020-10-25T07:56:56.22 0.1 undecidable manual P 213 23.4543 106 0.3 95
IV.SOI.EHZ. 2020-10-25T07:56:55.72 0.1 positive manual P 123 21.867 107 0.09 100
MN.CEL.HHZ. 2020-10-25T07:56:55.10 0.6 undecidable manual S 26 9.7791 124 -0.05 51
IV.SICLA.EHZ. 2020-10-25T07:56:54.44 0.1 negative manual P 306 14.0748 115 0.28 97
MN.CEL.HHZ. 2020-10-25T07:56:53.60 0.1 negative manual P 26 9.7791 124 0.19 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
MN.CEL.HHE. ML:2.1 0.0021899595 0.16 AML other m 2020-10-25T07:56:55.52
MN.CEL.HNE. ML:2.1 0.0021328135 0.1792 AML other m 2020-10-25T07:56:55.53
MN.CEL.HNN. ML:1.7 0.0008062721 0.2176 AML other m 2020-10-25T07:56:55.85
MN.CEL.HHN. ML:1.7 0.00087108965 0.2368 AML other m 2020-10-25T07:56:55.84
IV.SICLA.EHN. ML:1.8 0.0006685287 0.16 AML other m 2020-10-25T07:56:56.74
IV.SICLA.EHE. ML:1.9 0.0010008986 1.7184 AML other m 2020-10-25T07:56:57.92
IV.SOI.EHN. ML:1.6 0.0003163489 0.32 AML other m 2020-10-25T07:56:58.75
IV.SOI.EHE. ML:1.5 0.00021000744999999997 1.5392 AML other m 2020-10-25T07:56:58.86
IV.MTTG.HHN. ML:1.6 0.00026132735 0.3776 AML other m 2020-10-25T07:56:59.65
IV.MTTG.HHE. ML:1.5 0.00023084444999999998 0.3968 AML other m 2020-10-25T07:57:01.76
IV.MSRU.HHN. ML:1.8 0.00033140635 0.1408 AML other m 2020-10-25T07:57:02.39
IV.MSRU.HHE. ML:1.8 0.00028884555 0.2752 AML other m 2020-10-25T07:57:02.82
IV.JOPP.HHE. ML:1.1 0.000036784239999999995 0.224 AML other m 2020-10-25T07:57:07.77
IV.JOPP.HHN. ML:1.4 0.00006535215 0.3008 AML other m 2020-10-25T07:57:10.21
IV.PLAC.HNN. ML:1.6 0.00008392720000000001 0.5952 AML other m 2020-10-25T07:57:14.42
IV.PLAC.HHE. ML:1.4 0.000055212350000000003 0.3392 AML other m 2020-10-25T07:57:15.79
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