Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 2.4 on date 24-12-2018 and time 01:01:52 (Italy) in region 4 km W Sampeyre (CN)

A magnitude ML 2.4 earthquake occured in region: 4 km W Sampeyre (CN), on

  • 24-12-2018 00:01:52 (UTC)
  • 24-12-2018 01:01:52 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 44.5640, 7.1470 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.

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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
Sampeyre CN 4 1022 1022
Elva CN 5 97 1119
Stroppo CN 7 103 1222
Casteldelfino CN 7 157 1379
Macra CN 8 59 1438
Celle di Macra CN 9 100 1538
Frassino CN 10 265 1803
Bellino CN 10 109 1912
Pontechianale CN 11 179 2091
Prazzo CN 11 170 2261
San Damiano Macra CN 12 430 2691
Marmora CN 12 68 2759
Canosio CN 13 80 2839
Oncino CN 13 76 2915
Melle CN 14 292 3207
Cartignano CN 15 190 3397
Ostana CN 15 83 3480
Crissolo CN 15 168 3648
Acceglio CN 16 162 3810
Valmala CN 16 52 3862
Sanfront CN 17 2395 6257
Brossasco CN 17 1084 7341
Paesana CN 17 2784 10125
Gambasca CN 18 371 10496
Castelmagno CN 18 66 10562
Roccabruna CN 18 1585 12147
Rifreddo CN 19 1078 13225
Isasca CN 19 76 13301
Martiniana Po CN 19 734 14035
Pradleves CN 19 250 14285
Venasca CN 20 1437 15722

Municipalities with at least 50000 inhabitants

An earthquake occurred to
37 Km NW of Cuneo (56081 inhabitants)
65 Km SW of Moncalieri (57294 inhabitants)
71 Km SW of Torino (890529 inhabitants)
92 Km W of Asti (76202 inhabitants)
97 Km NW of Sanremo (54807 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 2.4 2018-12-24
00:01:52		 44.5637 7.1472 16 2019-06-04
09:16:18		 Bollettino Sismico Italiano INGV 68792211
Reviewed
Rev100 		ML 2.4 2018-12-24
00:01:53		 44.5678 7.1622 14 2018-12-24
00:12:02		 Sala Sismica INGV-Roma 64134031
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2018-12-24 00:01:52 ± 0.14
Latitude 44.5637 ± 0.0063
Longitude 7.1472 ± 0.0139
Depth (km) 16 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 68792211

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 952
Semi-minor axis of confidence ellipse (meter) 793
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 52
Circular confidence region, given by single value of horizontal uncertainty (meter) 950.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 124
Number of associated phases, regardless of their use for origin computation 35
Number of defining phases 35
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.4
Epicentral distance of station closest to the epicenter (degree) 0.06115
Epicentral distance of station farthest from the epicenter (degree) 1.73299
Number of stations at which the event was observed 22
Number of stations from which data was used for origin computation 22
Magnitudes information

ML:2.4

Field Value
Value 2.4
Uncertainty 0.2
Num. used stations 38
Type of magnitude ML
Reference to an origin 68792211
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2019-05-22 15:40:08

ML:2.4

Field Value
Value 2.4
Uncertainty 0.3
Num. used stations 40
Type of magnitude ML
Reference to an origin 64134031
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2018-12-24 00:12:02
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.VARE.HHZ. 2018-12-24T00:02:22.03 0.3 undecidable manual P 41 192.363 54 -0.89 38
IV.QLNO.HHZ. 2018-12-24T00:02:21.53 0.6 undecidable manual S 105 98.6235 93 -0.09 44
GU.CANO.HHZ. 2018-12-24T00:02:20.86 0.6 undecidable manual S 114 95.0382 94 0.19 43
IV.SARZ.HHZ. 2018-12-24T00:02:18.08 0.6 undecidable manual P 76 143.2455 92 1.75 19
GU.RORO.HHZ. 2018-12-24T00:02:18.30 0.3 undecidable manual S 124 88.4448 94 -0.62 58
GU.RNCA.HHZ. 2018-12-24T00:02:16.15 0.6 undecidable manual P 93 143.0457 92 -0.14 39
GU.MGRO.HHE. 2018-12-24T00:02:15.87 0.6 undecidable manual S 138 78.0663 94 -0.29 43
IV.MRGE.HHZ. 2018-12-24T00:02:15.67 0.6 undecidable manual P 357 133.9659 92 0.78 33
FR.SAOF.HHZ.00 2018-12-24T00:02:13.80 0.3 undecidable manual S 153 71.6727 95 -0.67 58
GU.RSP.HHZ. 2018-12-24T00:02:12.50 0.3 undecidable manual S 8 65.49 96 -0.32 67
GU.GBOS.HHZ. 2018-12-24T00:02:12.10 0.3 undecidable manual S 123 65.49 96 -0.72 58
MN.BNI.HHZ. 2018-12-24T00:02:12.42 0.3 undecidable manual S 326 65.5899 96 -0.42 65
GU.CIRO.HHZ. 2018-12-24T00:02:11.55 0.3 undecidable manual P 16 119.7912 93 -1.16 44
GU.PCP.HHZ. 2018-12-24T00:02:11.64 0.1 positive manual P 91 110.5005 93 0.35 80
GU.ROTM.HHZ. 2018-12-24T00:02:10.61 0.3 undecidable manual P 71 100.2219 93 0.92 50
GU.TRAV.HHZ. 2018-12-24T00:02:10.47 0.6 undecidable manual P 24 115.2957 93 -1.55 24
IV.QLNO.HHZ. 2018-12-24T00:02:09.85 0.1 undecidable manual P 105 98.6235 93 0.4 81
GU.CANO.HHZ. 2018-12-24T00:02:09.17 0.1 undecidable manual P 114 95.0382 94 0.27 84
GU.RORO.HHZ. 2018-12-24T00:02:08.02 0.1 undecidable manual P 124 88.4448 94 0.13 88
GU.RRL.HHZ. 2018-12-24T00:02:07.93 0.3 undecidable manual S 325 48.618 98 -0.4 67
IV.MONC.HHZ. 2018-12-24T00:02:07.82 0.3 undecidable manual P 47 83.4498 94 0.69 56
GU.MGRO.HHE. 2018-12-24T00:02:06.52 0.1 undecidable manual P 138 78.0663 94 0.23 88
GU.ENR.HHZ. 2018-12-24T00:02:06.54 0.3 undecidable manual S 150 43.2234 99 -0.37 68
FR.SAOF.HHZ.00 2018-12-24T00:02:05.39 0.3 undecidable manual P 153 71.6727 95 0.07 70
GU.STV.HHZ. 2018-12-24T00:02:05.26 0.6 undecidable manual S 158 38.0286 101 -0.29 46
MN.BNI.HHZ. 2018-12-24T00:02:04.72 0.1 positive manual P 326 65.5899 96 0.35 88
GU.RSP.HHZ. 2018-12-24T00:02:04.25 0.3 undecidable manual P 8 65.49 96 -0.12 70
GU.GBOS.HHZ. 2018-12-24T00:02:04.56 0.1 positive manual P 123 65.49 96 0.2 91
GU.BHB.HHZ. 2018-12-24T00:02:03.18 0.3 undecidable manual S 17 31.4463 105 -0.67 65
GU.RRL.HHZ. 2018-12-24T00:02:02.11 0.1 positive manual P 325 48.618 98 0.34 91
GU.ENR.HHZ. 2018-12-24T00:02:01.14 0.1 positive manual P 150 43.2234 99 0.19 95
GU.STV.HHZ. 2018-12-24T00:02:00.45 0.1 positive manual P 158 38.0286 101 0.28 95
GU.BHB.HHZ. 2018-12-24T00:01:59.32 0.1 positive manual P 17 31.4463 105 0.13 97
GU.PZZ.HHZ. 2018-12-24T00:01:58.30 0.3 undecidable manual S 201 6.7932 153 -0.14 74
GU.PZZ.HHZ. 2018-12-24T00:01:56.37 0.1 negative manual P 201 6.7932 153 0.31 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
GU.BHB.HHN. ML:2.4 0.0011005000000000001 0.38 AML other m 2018-12-24T00:02:03.40
GU.BHB.HHE. ML:2.4 0.001175 0.58 AML other m 2018-12-24T00:02:03.92
GU.STV.HHE. ML:2.5 0.00106 0.2 AML other m 2018-12-24T00:02:05.82
GU.STV.HHN. ML:2.2 0.000642 0.14 AML other m 2018-12-24T00:02:06.19
GU.ENR.HHE. ML:2.8 0.002 0.56 AML other m 2018-12-24T00:02:06.88
GU.ENR.HHN. ML:2.7 0.0013900000000000002 1.04 AML other m 2018-12-24T00:02:07.44
GU.RRL.HHN. ML:2.5 0.0008195 0.12 AML other m 2018-12-24T00:02:08.41
GU.RRL.HHE. ML:2.5 0.0009125 1.38 AML other m 2018-12-24T00:02:09.80
GU.GBOS.HHE. ML:2.4 0.000442 0.6 AML other m 2018-12-24T00:02:12.55
MN.BNI.HHE. ML:2.3 0.0003275 1.16 AML other m 2018-12-24T00:02:12.04
MN.BNI.HNE. ML:2.2 0.000266 1.16 AML other m 2018-12-24T00:02:12.04
GU.GBOS.HHN. ML:2.4 0.000395 0.4 AML other m 2018-12-24T00:02:13.88
GU.RSP.HHN. ML:2.5 0.0005669999999999999 0.16 AML other m 2018-12-24T00:02:14.25
GU.RSP.HNN. ML:2.4 0.000519 0.18 AML other m 2018-12-24T00:02:14.26
MN.BNI.HHN. ML:1.8 0.000121 0.26 AML other m 2018-12-24T00:02:14.34
MN.BNI.HNN. ML:1.8 0.0000998 0.26 AML other m 2018-12-24T00:02:14.48
GU.RSP.HHE. ML:2.4 0.0004945 0.4 AML other m 2018-12-24T00:02:14.46
GU.RSP.HNE. ML:2.4 0.000453 0.9 AML other m 2018-12-24T00:02:14.47
FR.SAOF.HHN.00 ML:2.1 0.0001965 0.24 AML other m 2018-12-24T00:02:16.03
FR.SAOF.HHE.00 ML:2.2 0.00027600000000000004 1.74 AML other m 2018-12-24T00:02:16.89
GU.RORO.HHN. ML:2.6 0.0004295 0.7 AML other m 2018-12-24T00:02:19.41
GU.RORO.HHE. ML:2.5 0.000368 0.74 AML other m 2018-12-24T00:02:19.43
GU.CANO.HHE. ML:2.6 0.00046950000000000003 0.82 AML other m 2018-12-24T00:02:22.87
IV.QLNO.HHE. ML:2.2 0.000175 0.7 AML other m 2018-12-24T00:02:23.38
IV.MONC.HHN. ML:2.6 0.000472 0.32 AML other m 2018-12-24T00:02:23.16
GU.CANO.HHN. ML:2.6 0.000432 0.28 AML other m 2018-12-24T00:02:23.58
IV.QLNO.HHN. ML:2.3 0.000202 0.3 AML other m 2018-12-24T00:02:23.47
IV.MONC.HHE. ML:2.6 0.0005695 1.72 AML other m 2018-12-24T00:02:25.96
RD.ORIF.BHN. ML:2.1 0.0001087 0.44 AML other m 2018-12-24T00:02:27.71
GU.PCP.HHE. ML:2.3 0.000166 0.24 AML other m 2018-12-24T00:02:28.69
GU.TRAV.HHN. ML:2.1 0.00009865 1.06 AML other m 2018-12-24T00:02:29.02
GU.PCP.HHN. ML:2.3 0.000168 0.42 AML other m 2018-12-24T00:02:29.34
GU.ROTM.HHE. ML:2.8 0.0005740000000000001 1.6 AML other m 2018-12-24T00:02:29.94
RD.ORIF.BHE. ML:2.2 0.000128 0.48 AML other m 2018-12-24T00:02:30.69
GU.ROTM.HHN. ML:2.9 0.0008810000000000001 0.76 AML other m 2018-12-24T00:02:32.64
GU.TRAV.HHE. ML:2.2 0.0001179 1.62 AML other m 2018-12-24T00:02:35.82
IV.MRGE.HHN. ML:2.2 0.0001113 0.62 AML other m 2018-12-24T00:02:36.91
IV.MRGE.HHE. ML:2.2 0.0001055 1.16 AML other m 2018-12-24T00:02:37.40
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
Waveforms Seismic signals in miniseed + resp format Download