Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 2.3 on date 09-04-2019 and time 18:07:41 (Italy) in region 4 km W Gropparello (PC)

A magnitude ML 2.3 earthquake occured in region: 4 km W Gropparello (PC), on

  • 09-04-2019 16:07:41 (UTC)
  • 09-04-2019 18:07:41 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 44.8280, 9.6810 at 30 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
Gropparello PC 4 2293 2293
Ponte dell'Olio PC 5 4794 7087
Bettola PC 8 2828 9915
Vigolzone PC 9 4297 14212
Rivergaro PC 11 7005 21217
Travo PC 11 2087 23304
Lugagnano Val d'Arda PC 12 4116 27420
Morfasso PC 12 1024 28444
Vernasca PC 12 2131 30575
Carpaneto Piacentino PC 13 7715 38290
Podenzano PC 14 9167 47457
San Giorgio Piacentino PC 15 5792 53249
Castell'Arquato PC 15 4713 57962
Bore PR 15 749 58711
Farini PC 15 1290 60001
Gazzola PC 18 2056 62057
Agazzano PC 18 2096 64153
Piozzano PC 18 641 64794

Municipalities with at least 50000 inhabitants

An earthquake occurred to
25 Km S of Piacenza (102191 inhabitants)
44 Km SW of Cremona (71901 inhabitants)
51 Km W of Parma (192836 inhabitants)
57 Km SE of Pavia (72576 inhabitants)
75 Km NE of Genova (586655 inhabitants)
76 Km W of Reggio nell'Emilia (171345 inhabitants)
81 Km SE of Milano (1345851 inhabitants)
81 Km N of La Spezia (93959 inhabitants)
84 Km SE of Vigevano (63310 inhabitants)
84 Km E of Alessandria (93943 inhabitants)
86 Km SE of Sesto San Giovanni (81608 inhabitants)
89 Km SE of Cinisello Balsamo (75078 inhabitants)
90 Km NW of Carrara (63133 inhabitants)
90 Km SW of Brescia (196480 inhabitants)
90 Km SE of Monza (122671 inhabitants)
93 Km SE of Rho (50434 inhabitants)
95 Km W of Carpi (70699 inhabitants)
95 Km NW of Massa (69479 inhabitants)
96 Km S of Bergamo (119381 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 2.3 2019-04-09
16:07:41		 44.8285 9.6808 30 2019-08-22
08:25:08		 Bollettino Sismico Italiano INGV 70002691
Reviewed
Rev100 		ML 2.3 2019-04-09
16:07:40		 44.8257 9.6768 30 2019-04-09
16:30:18		 Sala Sismica INGV-Roma 67410791
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-04-09 16:07:41 ± 0.17
Latitude 44.8285 ± 0.0099
Longitude 9.6808 ± 0.0254
Depth (km) 30 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 70002691

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1834
Semi-minor axis of confidence ellipse (meter) 794
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 268
Circular confidence region, given by single value of horizontal uncertainty (meter) 1830.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 111
Number of associated phases, regardless of their use for origin computation 22
Number of defining phases 22
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.48
Epicentral distance of station closest to the epicenter (degree) 0.17627
Epicentral distance of station farthest from the epicenter (degree) 1.35798
Number of stations at which the event was observed 16
Number of stations from which data was used for origin computation 16
Magnitudes information

ML:2.3

Field Value
Value 2.3
Uncertainty 0.2
Num. used stations 24
Type of magnitude ML
Reference to an origin 70002691
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2019-08-01 13:02:15

ML:2.3

Field Value
Value 2.3
Uncertainty 0.2
Num. used stations 8
Type of magnitude ML
Reference to an origin 67410791
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-04-09 16:30:18
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.MBAL.EHZ. 2019-04-09T16:08:18.42 0.6 undecidable manual S 43 133.2666 54 -0.23 44
IV.MAGA.HHZ. 2019-04-09T16:08:17.13 0.3 undecidable manual S 35 128.4714 54 -0.49 64
IV.MDI.HHZ. 2019-04-09T16:08:13.04 0.3 undecidable manual S 1 104.4177 101 0.83 57
IV.MABI.HHZ. 2019-04-09T16:08:05.64 0.3 undecidable manual P 25 150.738 54 0.56 59
ST.VARA.EHZ. 2019-04-09T16:08:04.17 0.3 undecidable manual P 40 145.743 54 -0.28 64
GU.MAIM.HHZ. 2019-04-09T16:08:02.84 0.3 undecidable manual P 147 120.0909 54 1.58 39
IV.MBAL.EHZ. 2019-04-09T16:08:02.59 0.3 undecidable manual P 43 133.2666 54 -0.31 65
IV.MAGA.HHZ. 2019-04-09T16:08:01.92 0.3 undecidable manual P 35 128.4714 54 -0.38 65
IV.ZONE.HHZ. 2019-04-09T16:08:00.18 0.3 undecidable manual P 18 109.2129 101 0.28 69
GU.CARD.HHZ. 2019-04-09T16:08:00.73 0.3 undecidable manual P 144 109.3128 101 0.81 59
IV.MDI.HHZ. 2019-04-09T16:07:59.18 0.6 undecidable manual P 1 104.4177 101 0 49
MN.VLC.HHZ. 2019-04-09T16:07:58.34 0.3 undecidable manual P 143 92.8404 103 0.9 58
GU.GRAM.HHZ. 2019-04-09T16:07:57.91 0.6 undecidable manual S 141 48.2184 116 0.03 54
IV.PLMA.HHE. 2019-04-09T16:07:56.44 0.1 undecidable manual P 171 87.4458 104 -0.18 97
GU.EQUI.HHN. 2019-04-09T16:07:55.81 0.3 undecidable manual P 153 82.4508 105 -0.07 75
GU.RNCA.HHE. 2019-04-09T16:07:54.93 0.3 undecidable manual P 236 69.8745 108 0.91 62
IV.PCN.EHE. 2019-04-09T16:07:53.20 0.6 undecidable manual S 9 23.1546 138 0.71 46
IV.MSSA.HHE. 2019-04-09T16:07:51.94 0.1 undecidable manual P 193 58.2972 112 -0.39 98
IV.BOB.HHE. 2019-04-09T16:07:51.76 0.6 undecidable manual S 250 19.5693 143 -0.11 56
GU.GRAM.HHZ. 2019-04-09T16:07:50.32 0.1 undecidable manual P 141 48.2184 116 -0.59 95
IV.PCN.EHE. 2019-04-09T16:07:47.19 0.1 undecidable manual P 9 23.1546 138 -0.6 100
IV.BOB.HHE. 2019-04-09T16:07:46.80 0.1 undecidable manual P 250 19.5693 143 -0.63 97
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
GU.GRAM.HHE. ML:2.0 0.00023545884999999999 0.2432 AML other m 2019-04-09T16:07:58.41
GU.GRAM.HHN. ML:2.2 0.0003260882 0.3328 AML other m 2019-04-09T16:07:59.31
IV.MABI.HHE. ML:1.8 0.00003074144 0.0896 AML other m 2019-04-09T16:08:06.15
GU.ROTM.HHE. ML:2.5 0.00029218195 0.256 AML other m 2019-04-09T16:08:12.50
IV.MDI.HNE. ML:2.5 0.00030242785 0.128 AML other m 2019-04-09T16:08:14.48
IV.MDI.HHE. ML:2.6 0.0003394778 0.128 AML other m 2019-04-09T16:08:14.55
IV.MDI.HHN. ML:2.4 0.0001993552 0.3968 AML other m 2019-04-09T16:08:14.53
IV.MDI.HNN. ML:2.3 0.00018966264999999998 0.3072 AML other m 2019-04-09T16:08:15.03
IV.ZONE.HNN. ML:2.8 0.00047081655 3.7888 AML other m 2019-04-09T16:08:13.56
IV.ZONE.HHN. ML:2.0 0.00008400063 0.256 AML other m 2019-04-09T16:08:15.67
IV.ZONE.HHE. ML:2.2 0.0001166182 0.2048 AML other m 2019-04-09T16:08:16.71
IV.MAGA.HHN. ML:2.3 0.0001405676 0.192 AML other m 2019-04-09T16:08:19.11
GU.ROTM.HHN. ML:2.4 0.00024489840000000004 0.3584 AML other m 2019-04-09T16:08:20.01
IV.MBAL.EHN. ML:2.3 0.00011930325 0.128 AML other m 2019-04-09T16:08:21.63
IV.MAGA.HHE. ML:2.6 0.0002620528 0.6016 AML other m 2019-04-09T16:08:21.73
IV.MBAL.HNN. ML:2.5 0.00017930055 0.5248 AML other m 2019-04-09T16:08:22.20
IV.MBAL.EHE. ML:2.2 0.000107250575 0.128 AML other m 2019-04-09T16:08:22.46
ST.VARA.EHN. ML:2.3 0.00010021942 0.2816 AML other m 2019-04-09T16:08:24.20
ST.VARA.HNN. ML:2.4 0.00013027990999999999 0.8192 AML other m 2019-04-09T16:08:24.87
IV.MABI.HHN. ML:1.8 0.00003360812 0.1792 AML other m 2019-04-09T16:08:25.95
ST.VARA.EHE. ML:2.4 0.00012100128999999998 0.3456 AML other m 2019-04-09T16:08:26.32
ST.VARA.HNE. ML:2.4 0.00011625265500000001 0.3584 AML other m 2019-04-09T16:08:27.94
IV.ZONE.HNE. ML:2.2 0.00013472815 1.8432 AML other m 2019-04-09T16:08:30.10
IV.MBAL.HNE. ML:2.4 0.00016019405 0.704 AML other m 2019-04-09T16:08:37.36
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