Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.5 on date 25-12-2016 and time 07:34:24 (Italy) in region Costa Calabra sud occidentale (Catanzaro, Vibo Valentia, Reggio di Calabria)

A magnitude ML 1.5 earthquake occured in region: Costa Calabra sud occidentale (Catanzaro, Vibo Valentia, Reggio di Calabria), on

  • 25-12-2016 06:34:24 (UTC)
  • 25-12-2016 07:34:24 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 38.7860, 16.1890 at 9 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
Pizzo VV 6 9278 9278
Francavilla Angitola VV 7 1939 11217
Maierato VV 9 2188 13405
Filadelfia VV 9 5384 18789
Sant'Onofrio VV 11 3067 21856
Monterosso Calabro VV 11 1729 23585
Polia VV 12 1023 24608
Filogaso VV 12 1417 26025
Curinga CZ 12 6779 32804
Stefanaconi VV 13 2494 35298
Capistrano VV 14 1042 36340
Vibo Valentia VV 14 33941 70281
Briatico VV 15 4053 74334
San Pietro a Maida CZ 15 4200 78534
San Nicola da Crissa VV 16 1335 79869
San Gregorio d'Ippona VV 17 2527 82396
Maida CZ 17 4566 86962
Vazzano VV 18 1067 88029
Jacurso CZ 18 624 88653
Vallelonga VV 18 706 89359
Pizzoni VV 19 1143 90502
Cessaniti VV 19 3290 93792
San Costantino Calabro VV 20 2239 96031
Zambrone VV 20 1775 97806
Francica VV 20 1651 99457

Municipalities with at least 50000 inhabitants

An earthquake occurred to
24 Km SW of Lamezia Terme (70714 inhabitants)
38 Km W of Catanzaro (90612 inhabitants)
57 Km S of Cosenza (67546 inhabitants)
86 Km NE of Messina (238439 inhabitants)
88 Km W of Crotone (62178 inhabitants)
89 Km NE of Reggio di Calabria (183035 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 2016-12-25
06:34:24		 38.7858 16.189 9 2017-05-09
11:43:05		 Bollettino Sismico Italiano INGV 45026891
Reviewed
Rev100 		ML 1.5 2016-12-25
06:34:24		 38.7907 16.1788 7 2016-12-25
07:05:39		 Sala Sismica INGV-Roma 37647751
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2016-12-25 06:34:24 ± 0.18
Latitude 38.7858 ± 0.0063
Longitude 16.1890 ± 0.0104
Depth (km) 9 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 45026891

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 853
Semi-minor axis of confidence ellipse (meter) 567
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 112
Circular confidence region, given by single value of horizontal uncertainty (meter) 850.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 113
Number of associated phases, regardless of their use for origin computation 20
Number of defining phases 20
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.33
Epicentral distance of station closest to the epicenter (degree) 0.18346
Epicentral distance of station farthest from the epicenter (degree) 0.88134
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:1.5

Field Value
Value 1.5
Uncertainty 0.3
Num. used stations 5
Type of magnitude ML
Reference to an origin 45026891
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2017-05-09 11:43:05

ML:1.5

Field Value
Value 1.5
Uncertainty 0.3
Num. used stations 5
Type of magnitude ML
Reference to an origin 37647751
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2016-12-25 07:05:39
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.CELI.HHZ. 2016-12-25T06:34:47.24 0.1 undecidable manual S 22 73.7706 50 0.01 91
IV.SPS2.HHZ. 2016-12-25T06:34:42.45 0.6 undecidable manual S 13 57.498 50 -0.44 43
IV.TDS.HHZ. 2016-12-25T06:34:42.17 0.3 undecidable manual P 7 97.8243 50 0.78 52
IV.SERS.HHZ. 2016-12-25T06:34:41.03 0.6 undecidable manual S 57 51.3153 50 -0.2 45
IV.MSRU.HHE. 2016-12-25T06:34:40.07 0.3 undecidable manual P 226 82.7505 50 1.01 49
IV.CAR1.HHZ. 2016-12-25T06:34:40.71 1.0 undecidable manual S 2 51.9036 50 -0.69 20
IV.PLAC.HHZ. 2016-12-25T06:34:39.12 0.3 undecidable manual S 150 43.1235 50 0.07 71
IV.CET2.HHZ. 2016-12-25T06:34:39.68 1.0 undecidable manual P 346 84.8484 50 0.29 21
IV.SOI.EHN. 2016-12-25T06:34:38.48 0.6 undecidable manual P 188 79.8645 50 -0.15 44
IV.CELI.HHZ. 2016-12-25T06:34:37.78 0.1 undecidable manual P 22 73.7706 50 0.1 89
MN.CEL.HNZ. 2016-12-25T06:34:36.46 0.3 undecidable manual P 204 63.6918 50 0.34 65
MN.TIP.HHZ. 2016-12-25T06:34:36.73 0.1 undecidable manual P 48 65.6898 50 0.29 87
IV.JOPP.HHZ. 2016-12-25T06:34:35.66 0.1 undecidable manual S 233 32.9448 50 -0.67 83
IV.SPS2.HHZ. 2016-12-25T06:34:35.12 0.1 undecidable manual P 13 57.498 50 -0.06 93
IV.CAR1.HHZ. 2016-12-25T06:34:34.18 0.1 undecidable manual P 2 51.9036 50 -0.13 92
IV.SERS.HHZ. 2016-12-25T06:34:34.51 0.6 undecidable manual P 57 51.3153 50 0.3 45
IV.PLAC.HHZ. 2016-12-25T06:34:32.93 0.3 undecidable manual P 150 43.1235 50 -0.03 72
IV.GRI.EHZ. 2016-12-25T06:34:32.03 0.1 undecidable manual S 79 20.3685 114 -0.34 93
IV.JOPP.HHZ. 2016-12-25T06:34:31.21 0.1 undecidable manual P 233 32.9448 50 -0.17 95
IV.GRI.EHZ. 2016-12-25T06:34:29.09 0.1 undecidable manual P 79 20.3685 114 -0.01 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.CAR1.HHE. ML:1.8 0.0001515 0.98 AML other m 2016-12-25T06:34:43.22
IV.CAR1.HHN. ML:1.7 0.00013000000000000002 0.66 AML other m 2016-12-25T06:34:43.92
IV.JOPP.HHE. ML:1.5 0.000149 1.8 AML other m 2016-12-25T06:34:36.97
IV.JOPP.HHN. ML:1.6 0.0001565 1.22 AML other m 2016-12-25T06:34:37.87
IV.PLAC.HNN. ML:1.6 0.0001325 1.48 AML other m 2016-12-25T06:34:39.23
IV.PLAC.HHE. ML:1.6 0.00011999999999999999 1.48 AML other m 2016-12-25T06:34:40.97
IV.PLAC.HNE. ML:1.7 0.000169 1.62 AML other m 2016-12-25T06:34:39.13
IV.PLAC.HHN. ML:1.7 0.0001735 1.64 AML other m 2016-12-25T06:34:39.13
IV.SERS.HHN. ML:1.1 0.0000281 0.74 AML other m 2016-12-25T06:34:42.41
IV.SERS.HHE. ML:1.1 0.000029999999999999997 1.58 AML other m 2016-12-25T06:34:46.15
IV.SPS2.HHE. ML:1.2 0.0000355 0.44 AML other m 2016-12-25T06:34:44.05
IV.SPS2.HHN. ML:1.3 0.0000461 0.24 AML other m 2016-12-25T06:34:44.02
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