Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.6 on date 20-11-2017 and time 17:26:39 (UTC) in region 5 km SE Varano de' Melegari (PR)

A magnitude ML 1.6 earthquake occured in region: 5 km SE Varano de' Melegari (PR), on

  • 20-11-2017 17:26:39 (UTC)
  • 20-11-2017 18:26:39 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 44.6500, 10.0520 at 24 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
Varano de' Melegari PR 5 2676 2676
Terenzo PR 5 1196 3872
Fornovo di Taro PR 6 6100 9972
Solignano PR 7 1773 11745
Calestano PR 8 2100 13845
Pellegrino Parmense PR 14 1048 14893
Medesano PR 14 10828 25721
Sala Baganza PR 16 5561 31282
Felino PR 16 8790 40072
Valmozzola PR 16 539 40611
Varsi PR 16 1230 41841
Berceto PR 16 2109 43950
Collecchio PR 17 14403 58353
Langhirano PR 18 10315 68668
Tizzano Val Parma PR 19 2077 70745
Salsomaggiore Terme PR 19 19831 90576
Corniglio PR 20 1936 92512
Lesignano de' Bagni PR 20 5028 97540

Municipalities with at least 50000 inhabitants

An earthquake occurred to
28 Km SW of Parma (192836 inhabitants)
46 Km W of Reggio nell'Emilia (171345 inhabitants)
53 Km SE of Piacenza (102191 inhabitants)
54 Km S of Cremona (71901 inhabitants)
63 Km N of La Spezia (93959 inhabitants)
64 Km N of Carrara (63133 inhabitants)
68 Km W of Carpi (70699 inhabitants)
69 Km N of Massa (69479 inhabitants)
69 Km W of Modena (184973 inhabitants)
88 Km N of Viareggio (62467 inhabitants)
92 Km SE of Pavia (72576 inhabitants)
93 Km E of Genova (586655 inhabitants)
96 Km NW of Lucca (89046 inhabitants)
100 Km S of Brescia (196480 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 2017-11-20
17:26:39		 44.6502 10.052 24 2018-09-04
09:09:16		 Bollettino Sismico Italiano INGV 54085871
Reviewed
Rev100 		ML 1.8 2017-11-20
17:26:39		 44.647 10.063 25 2017-11-20
17:37:04		 Sala Sismica INGV-Roma 52012681
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2017-11-20 17:26:39 ± 0.1
Latitude 44.6502 ± 0.0054
Longitude 10.0520 ± 0.0088
Depth (km) 24 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 54085871

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 626
Semi-minor axis of confidence ellipse (meter) 233
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 267
Circular confidence region, given by single value of horizontal uncertainty (meter) 630.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 93
Number of associated phases, regardless of their use for origin computation 29
Number of defining phases 23
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.23
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 4.63600
Number of stations at which the event was observed 20
Number of stations from which data was used for origin computation 14
Magnitudes information

ML:1.6

Field Value
Value 1.6
Uncertainty 0.2
Num. used stations 8
Type of magnitude ML
Reference to an origin 54085871
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2018-03-09 11:55:57

ML:1.8

Field Value
Value 1.8
Uncertainty 0.4
Num. used stations 8
Type of magnitude ML
Reference to an origin 52012681
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2017-11-20 17:37:04
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.ATCC.EHZ. 2017-11-20T17:27:56.69 3.0 undecidable manual Sg 10.58 0
IV.PTRJ.HNZ. 2017-11-20T17:27:47.27 3.0 undecidable manual P 514.596 -1.66 0
IV.T1299.EHZ. 2017-11-20T17:27:34.37 3.0 undecidable manual P 342.4017 6.86 0
IV.TOLF.HHZ. 2017-11-20T17:27:27.97 3.0 undecidable manual P 327.1281 2.36 0
IV.MAGA.HHZ. 2017-11-20T17:27:17.56 1.0 undecidable manual S 20 132.6672 54 0.09 27
IV.BRSN.HNZ. 2017-11-20T17:27:05.13 3.0 undecidable manual P 165.612 -0.38 0
IV.MAGA.HHZ. 2017-11-20T17:27:01.20 0.6 undecidable manual P 20 132.6672 54 -0.21 54
IV.PLMA.HHZ. 2017-11-20T17:27:00.32 0.6 undecidable manual S 193 68.4759 103 -0.31 60
MN.VLC.HHZ. 2017-11-20T17:26:59.50 1.0 undecidable manual S 154 60.5949 105 0.91 24
GU.GORR.HHZ. 2017-11-20T17:26:58.99 0.6 undecidable manual S 266 60.0954 105 0.51 58
IV.SALO.HNZ. 2017-11-20T17:26:58.96 0.6 undecidable manual P 19 113.5974 98 0.42 53
IV.MSSA.HHZ. 2017-11-20T17:26:57.90 0.6 undecidable manual S 229 56.1993 107 0.42 59
GU.EQUI.HHZ. 2017-11-20T17:26:57.40 0.6 undecidable manual S 171 54.3012 107 0.41 60
GU.POPM.HHZ. 2017-11-20T17:26:55.32 3.0 undecidable manual P 87.3459 0.77 0
IV.BDI.HNZ. 2017-11-20T17:26:53.15 1.0 undecidable manual P 146 78.1662 101 0 31
IV.PLMA.HHZ. 2017-11-20T17:26:51.44 0.6 undecidable manual P 193 68.4759 103 -0.25 61
GU.GORR.HHZ. 2017-11-20T17:26:50.30 0.3 negative manual P 266 60.0954 105 -0.15 94
IV.NEVI.HNZ. 2017-11-20T17:26:50.12 1.0 undecidable manual S 109 22.1556 132 0.72 29
MN.VLC.HHZ. 2017-11-20T17:26:50.36 0.6 undecidable manual P 154 60.5949 105 -0.15 63
GU.SARM.EHZ. 2017-11-20T17:26:50.00 0.6 undecidable manual P 152 58.5969 106 -0.23 62
IV.PRMA.HHZ. 2017-11-20T17:26:50.07 0.6 undecidable manual S 58 24.1536 130 0.27 66
IV.MSSA.HHZ. 2017-11-20T17:26:49.79 0.3 undecidable manual P 229 56.1993 107 -0.09 96
GU.EQUI.HHZ. 2017-11-20T17:26:49.46 0.6 undecidable manual P 171 54.3012 107 -0.13 64
GU.GSCL.HHZ. 2017-11-20T17:26:49.83 0.6 undecidable manual P 128 53.9016 108 0.3 61
IV.BOB.HNZ. 2017-11-20T17:26:48.94 0.6 undecidable manual P 286 49.4172 109 0.07 65
GU.GRAM.HHZ. 2017-11-20T17:26:48.28 0.6 undecidable manual S 176 17.6712 140 -0.29 65
IV.NEVI.HNZ. 2017-11-20T17:26:45.01 0.6 undecidable manual P 109 22.1556 132 -0.2 66
GU.GRAM.HHZ. 2017-11-20T17:26:44.53 0.3 undecidable manual P 176 17.6712 140 -0.2 100
IV.PRMA.HHZ. 2017-11-20T17:26:44.88 0.6 undecidable manual P 58 24.1536 130 -0.56 60
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.MSSA.HHN. ML:1.5 0.00006228025 0.2432 AML other m 2017-11-20T17:26:58.39
IV.MSSA.HHE. ML:1.4 0.000047541975 0.1792 AML other m 2017-11-20T17:26:59.01
GU.SARM.EHN. ML:1.9 0.00015215404999999998 0.2432 AML other m 2017-11-20T17:26:59.44
GU.SARM.EHE. ML:1.7 0.00008819610999999999 0.2944 AML other m 2017-11-20T17:26:59.63
GU.GORR.HHE. ML:1.8 0.00010894185 0.1792 AML other m 2017-11-20T17:26:59.82
GU.GORR.HHN. ML:1.8 0.0001297137 0.3072 AML other m 2017-11-20T17:27:00.42
IV.PLMA.HHE. ML:1.4 0.000038674545 0.832 AML other m 2017-11-20T17:27:00.95
IV.PLMA.HHN. ML:1.5 0.0000547197 1.7152 AML other m 2017-11-20T17:27:07.01
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