Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.5 on date 29-12-2019 and time 19:40:50 (UTC) in region 1 km E Compiano (PR)

A magnitude ML 1.5 earthquake occured in region: 1 km E Compiano (PR), on

  • 29-12-2019 19:40:50 (UTC)
  • 29-12-2019 20:40:50 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 44.5000, 9.6710 at 13 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
Compiano PR 1 1112 1112
Bedonia PR 3 3482 4594
Tornolo PR 4 1010 5604
Albareto PR 6 2156 7760
Borgo Val di Taro PR 8 6999 14759
Varese Ligure SP 15 2059 16818
Bardi PR 16 2227 19045
Zeri MS 18 1094 20139
Santo Stefano d'Aveto GE 18 1126 21265
Valmozzola PR 19 539 21804

Municipalities with at least 50000 inhabitants

An earthquake occurred to
45 Km N of La Spezia (93959 inhabitants)
58 Km NW of Carrara (63133 inhabitants)
59 Km E of Genova (586655 inhabitants)
62 Km S of Piacenza (102191 inhabitants)
62 Km SW of Parma (192836 inhabitants)
64 Km NW of Massa (69479 inhabitants)
76 Km SW of Cremona (71901 inhabitants)
79 Km W of Reggio nell'Emilia (171345 inhabitants)
84 Km NW of Viareggio (62467 inhabitants)
86 Km SE of Pavia (72576 inhabitants)
95 Km E of Alessandria (93943 inhabitants)
97 Km E of Savona (61345 inhabitants)
99 Km NW of Lucca (89046 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 2019-12-29
19:40:50		 44.4998 9.6708 13 2020-02-28
16:42:21		 Bollettino Sismico Italiano INGV 76030501
Reviewed
Rev100 		ML 1.5 2019-12-29
19:40:49		 44.4592 9.6448 4 2020-02-26
09:55:52		 Sala Sismica INGV-Roma 75094991
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-12-29 19:40:50 ± 0.05
Latitude 44.4998 ± 0.0045
Longitude 9.6708 ± 0.0038
Depth (km) 13 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 76030501

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 499
Semi-minor axis of confidence ellipse (meter) 87
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 197
Circular confidence region, given by single value of horizontal uncertainty (meter) 500.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 123
Number of associated phases, regardless of their use for origin computation 22
Number of defining phases 16
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.15
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.80309
Number of stations at which the event was observed 15
Number of stations from which data was used for origin computation 9
Magnitudes information

ML:1.5

Field Value
Value 1.5
Uncertainty 0.3
Num. used stations 16
Type of magnitude ML
Reference to an origin 75094991
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-12-29 20:33:30

ML:1.5

Field Value
Value 1.5
Uncertainty 0.2
Num. used stations 10
Type of magnitude ML
Reference to an origin 76030501
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2020-01-30 11:36:36
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.PTRJ.HHZ. 2019-12-29T19:42:19.81 3.0 undecidable manual Pg 17.42 0
IT.VNF1.HGZ. 2019-12-29T19:42:10.11 3.0 undecidable manual Pg 12.43 0
IV.RM33.EHZ. 2019-12-29T19:41:53.37 3.0 undecidable manual Pg 11.42 0
IV.MILN.HNZ. 2019-12-29T19:41:27.26 3.0 undecidable manual S -2.25 0
IT.VRB.HGZ. 2019-12-29T19:41:20.42 3.0 undecidable manual Pn -0.13 0
IV.MDI.HHZ. 2019-12-29T19:41:16.17 3.0 positive manual P 0.36 0
GU.RNCA.HHZ. 2019-12-29T19:41:08.03 0.3 undecidable manual S 267 56.9985 92 -0.02 70
GU.EQUI.HHN. 2019-12-29T19:41:06.93 0.6 undecidable manual S 134 53.2023 92 -0.11 46
IV.PLMA.HHZ. 2019-12-29T19:41:06.66 0.3 undecidable manual S 164 52.0035 92 -0.05 70
GU.PCP.HHZ. 2019-12-29T19:41:05.88 0.3 undecidable manual P 273 89.1441 91 0.36 62
IV.BOB.HNE. 2019-12-29T19:41:02.00 0.6 undecidable manual S 329 34.5432 94 -0.06 49
GU.GORR.HHZ. 2019-12-29T19:41:01.17 0.3 undecidable manual S 292 32.1456 95 -0.25 70
GU.GRAM.HHZ. 2019-12-29T19:41:01.03 0.3 undecidable manual S 92 31.2465 95 -0.15 72
GU.RNCA.HHZ. 2019-12-29T19:41:00.88 0.1 undecidable manual P 267 56.9985 92 0.31 89
GU.EQUI.HHN. 2019-12-29T19:41:00.03 0.1 undecidable manual P 134 53.2023 92 0.04 95
IV.MSSA.HHZ. 2019-12-29T19:40:59.21 0.3 undecidable manual S 211 23.754 99 0.03 74
IV.PLMA.HHZ. 2019-12-29T19:40:59.93 0.3 undecidable manual P 164 52.0035 92 0.13 70
GU.FIVI.HNE. 2019-12-29T19:40:58.91 0.1 undecidable manual P 128 46.3203 93 -0.02 96
IV.BOB.HNE. 2019-12-29T19:40:57.01 0.1 undecidable manual P 329 34.5432 94 -0.1 96
GU.GORR.HHZ. 2019-12-29T19:40:56.60 0.1 undecidable manual P 292 32.1456 95 -0.15 95
GU.GRAM.HHZ. 2019-12-29T19:40:56.72 0.1 positive manual P 92 31.2465 95 0.11 97
IV.MSSA.HHZ. 2019-12-29T19:40:55.50 0.1 undecidable manual P 211 23.754 99 0.05 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.MSSA.HHN. ML:1.3 0.0001238 0.84 AML other m 2019-12-29T19:40:55.57
IV.MSSA.HHE. ML:1.2 0.0000871 0.66 AML other m 2019-12-29T19:41:01.02
GU.GORR.HHE. ML:1.4 0.000121 0.98 AML other m 2019-12-29T19:41:01.90
GU.GORR.HHN. ML:1.6 0.000153 0.5 AML other m 2019-12-29T19:41:02.46
GU.GRAM.HHE. ML:1.7 0.00022749999999999997 0.18 AML other m 2019-12-29T19:41:02.40
GU.GRAM.HHN. ML:1.7 0.000244 0.86 AML other m 2019-12-29T19:41:03.18
IV.PLMA.HHE. ML:1.5 0.00008235000000000001 1.02 AML other m 2019-12-29T19:41:08.64
GU.RNCA.HHN. ML:1.4 0.00006035 0.16 AML other m 2019-12-29T19:41:08.51
IV.PLMA.HHN. ML:1.7 0.00011549999999999999 0.16 AML other m 2019-12-29T19:41:08.59
GU.RNCA.HHE. ML:1.5 0.000071 0.12 AML other m 2019-12-29T19:41:08.85
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