Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.8 on date 17-04-2019 and time 06:05:02 (UTC) in region 7 km N Compiano (PR)

A magnitude ML 1.8 earthquake occured in region: 7 km N Compiano (PR), on

  • 17-04-2019 06:05:02 (UTC)
  • 17-04-2019 08:05:02 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 44.5540, 9.6830 at 8 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 7 1112 1112
Bedonia PR 7 3482 4594
Tornolo PR 9 1010 5604
Bardi PR 10 2227 7831
Borgo Val di Taro PR 10 6999 14830
Albareto PR 12 2156 16986
Valmozzola PR 16 539 17525
Ferriere PC 18 1294 18819
Varsi PR 18 1230 20049
Santo Stefano d'Aveto GE 18 1126 21175
Morfasso PC 19 1024 22199
Farini PC 20 1290 23489

Municipalities with at least 50000 inhabitants

An earthquake occurred to
51 Km N of La Spezia (93959 inhabitants)
56 Km S of Piacenza (102191 inhabitants)
58 Km W of Parma (192836 inhabitants)
62 Km E of Genova (586655 inhabitants)
62 Km NW of Carrara (63133 inhabitants)
68 Km NW of Massa (69479 inhabitants)
70 Km SW of Cremona (71901 inhabitants)
77 Km W of Reggio nell'Emilia (171345 inhabitants)
81 Km SE of Pavia (72576 inhabitants)
89 Km NW of Viareggio (62467 inhabitants)
93 Km E of Alessandria (93943 inhabitants)
99 Km W of Carpi (70699 inhabitants)
99 Km W of Modena (184973 inhabitants)
99 Km E of Savona (61345 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 1.8 2019-04-17
06:05:02		 44.5542 9.683 8 2019-08-22
08:24:58		 Bollettino Sismico Italiano INGV 68108361
Reviewed
Rev100 		ML 1.8 2019-04-17
06:05:02		 44.5528 9.6747 8 2019-04-17
06:12:32		 Sala Sismica INGV-Roma 67668521
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-04-17 06:05:02 ± 0.09
Latitude 44.5542 ± 0.0054
Longitude 9.6830 ± 0.0063
Depth (km) 8 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 68108361

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 567
Semi-minor axis of confidence ellipse (meter) 340
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 226
Circular confidence region, given by single value of horizontal uncertainty (meter) 570.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 141
Number of associated phases, regardless of their use for origin computation 26
Number of defining phases 16
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) 7.25753
Number of stations at which the event was observed 20
Number of stations from which data was used for origin computation 10
Magnitudes information

ML:1.8

Field Value
Value 1.8
Uncertainty 0.2
Num. used stations 12
Type of magnitude ML
Reference to an origin 68108361
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2019-04-29 20:32:54

ML:1.8

Field Value
Value 1.8
Uncertainty 0.1
Num. used stations 12
Type of magnitude ML
Reference to an origin 67668521
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-04-17 06:12:32
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.LIK.EHZ.01 2019-04-17T06:06:40.39 3.0 undecidable manual Sg 19.120001 0
MN.PDG.HHZ. 2019-04-17T06:06:39.90 3.0 positive manual P 805.5825 -9.99 0
IV.IACL.HHZ. 2019-04-17T06:06:34.16 3.0 negative manual P 772.3491 -9.99 0
IV.IFIL.HHZ. 2019-04-17T06:06:17.44 3.0 undecidable manual P 778.7316 -9.99 0
IV.TDS.HHZ. 2019-04-17T06:06:14.45 3.0 undecidable manual P 771.0504 -9.99 0
IV.LAV9.HHZ. 2019-04-17T06:06:03.41 3.0 undecidable manual Sn -7.39 0
CH.BNALP.HHZ. 2019-04-17T06:05:35.65 3.0 positive manual P 274.8138 -8.27 0
IV.APEC.HHZ. 2019-04-17T06:05:32.55 3.0 undecidable manual Sn 1.25 0
IV.RMP.HHZ. 2019-04-17T06:05:29.86 3.0 negative manual P 390.1095 -9.99 0
GU.SARM.EHZ. 2019-04-17T06:05:24.70 0.6 undecidable manual S 126 70.1742 50 0.19 46
IV.PII.HHZ. 2019-04-17T06:05:22.34 0.6 undecidable manual P 144 114.0969 50 0.34 41
IV.PLMA.HHZ. 2019-04-17T06:05:20.70 0.3 undecidable manual S 166 57.5979 50 -0.45 67
GU.EQUI.HHE. 2019-04-17T06:05:20.60 0.6 undecidable manual S 139 56.9985 50 -0.38 45
GU.PCP.HHZ. 2019-04-17T06:05:18.24 0.6 undecidable manual P 269 89.9433 50 -0.04 46
IV.MILN.HNZ. 2019-04-17T06:05:16.96 3.0 undecidable manual Pg 2.13 0
GU.SARM.EHZ. 2019-04-17T06:05:15.83 0.3 undecidable manual P 126 70.1742 50 0.6 62
IT.GNV.HGE. 2019-04-17T06:05:14.02 0.6 undecidable manual P 257 60.9945 50 0.21 47
GU.EQUI.HHE. 2019-04-17T06:05:13.16 0.6 undecidable manual P 139 56.9985 50 -0.03 49
IV.BOB.HHE. 2019-04-17T06:05:13.30 0.3 undecidable manual S 322 30.1476 104 -0.02 77
IV.PLMA.HHZ. 2019-04-17T06:05:13.26 0.3 undecidable manual P 166 57.5979 50 -0.02 73
IV.MSSA.HHZ. 2019-04-17T06:05:13.10 0.3 undecidable manual S 206 29.4483 104 0 77
GU.RNCA.HHZ. 2019-04-17T06:05:13.52 0.3 undecidable manual P 261 58.5969 50 0.07 72
GU.GRAM.HHZ. 2019-04-17T06:05:13.80 0.3 undecidable manual S 103 31.0467 104 0.16 74
IV.MSSA.HHZ. 2019-04-17T06:05:08.78 0.1 positive manual P 206 29.4483 104 0.14 100
GU.GRAM.HHZ. 2019-04-17T06:05:08.53 0.3 undecidable manual P 103 31.0467 104 -0.42 70
IV.BOB.HHE. 2019-04-17T06:05:08.54 0.3 undecidable manual P 322 30.1476 104 -0.23 74
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.MSSA.HHE. ML:1.7 0.000234 0.7 AML other m 2019-04-17T06:05:13.27
IV.MSSA.HHN. ML:1.8 0.0003095 0.86 AML other m 2019-04-17T06:05:13.96
GU.GRAM.HHE. ML:2.2 0.0008705000000000001 1.54 AML other m 2019-04-17T06:05:14.94
GU.GRAM.HHN. ML:2.4 0.001155 0.16 AML other m 2019-04-17T06:05:15.06
GU.RNCA.HHE. ML:1.8 0.0001395 0.98 AML other m 2019-04-17T06:05:21.78
GU.RNCA.HHN. ML:1.8 0.00015 0.16 AML other m 2019-04-17T06:05:21.70
IV.PLMA.HHN. ML:1.6 0.00008424999999999999 1 AML other m 2019-04-17T06:05:22.73
IV.PLMA.HHE. ML:1.6 0.00009290000000000001 0.14 AML other m 2019-04-17T06:05:22.27
GU.SARM.EHN. ML:1.9 0.0001375 0.84 AML other m 2019-04-17T06:05:26.55
GU.SARM.EHE. ML:1.8 0.0001155 1.02 AML other m 2019-04-17T06:05:26.29
GU.PCP.HHE. ML:1.5 0.000041349999999999995 0.52 AML other m 2019-04-17T06:05:32.30
GU.PCP.HHN. ML:1.8 0.0000645 0.24 AML other m 2019-04-17T06:05:32.90
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