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) 44.83, 9.68 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.

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

These maps show the seismicity for different time windows. The earthquake locations reported in these maps are determined in quasi real-time by the personnel on duty in the seismic surveillance center of INGV in Rome. Note that the earthquake source parameters (hypocentral location and magnitude) are the best estimates obstained with the available data and they are adjourned as additional data become available. The source parameters obtained by the personnel on duty are then revised by the group in charge of the INGV Seismic Bulletin (Bollettino Sismico Italiano dell’INGV).

Earthquakes of the last three days (72 hours)

Earthquakes of the last three days (72 hours) *

This map reports the earthquake epicenters located in the past 72 hours (3 days) from the time this page has been generated. The radius of the circle representing the earthquake on the map scales with magnitude. The color depends on the time of occurrence of the earthquakes with respect to the time of generation of the map (red = 1 hour; orange = 24 hours; yellow = 72 hours). The open star shows the epicenter of the current earthquake.
Earthquakes of the last 90 days

Earthquakes of the last 90 days *

This map reports the Magnitudo ≥ 1.0 earthquake epicenters located using the data acquired by the Italian National Seismic Network and by other collaborating networks in Italy and in the neighbouring countries. The radii of the circles representing the epicenters on the map scale with magnitude. The color of each circle depends on the time of occurrence of the earthquakes with respect to the time of generation of the map (red = 1 hour; orange = 24 hours; yellow = 72 hours; blue = all other earthquakes). The open star shows the epicenter of the current earthquake.
Earthquakes since 1985

Earthquakes since 1985 *

This map reports the Magnitudo ≥ 2.5 earthquake epicenters located using the data acquired by the Italian National Seismic Network and by other collaborating networks in Italy and in the neighbouring countries. The radii of the circles representing the epicenters on the map scale with magnitude. The color of each circle depends on the time of occurrence of the earthquakes with respect to the time of generation of the map (red = 1 hour; orange = 24 hours; yellow = 72 hours; blue = all other earthquakes). The open star shows the epicenter of the current earthquake.
Earthquakes since 1000 AD until 2014

Earthquakes since 1000 AD until 2014 *

This map shows the epicenters of the historical earthquakes catalogue CPT15 (Catalogo Parametrico dei Terremoti Italiani, 2015 version https://emidius.mi.ingv.it/CPTI15-DBMI15/) with estimated magnitude ≥ 5.0 since 1000 AD until 2014. The epicenters are represented by squares which sides scale with the estimated earthquake magnitude. For earthquakes with magnitude ≥ 6.0, it is also shown the year of occurrence and the magnitude value. The open star shows the epicenter of the current earthquake.
Seismic hazard
Shakemap
Felt maps
The earthquake effects in MCS scale as obtained from the compiled questionnaire

The earthquake effects in MCS scale as obtained from the compiled questionnaire *

This map shows the distribution of the effects of the earthquake on the territory in terms of the MCS (Mercalli-Cancani-Sieberg) intensity scale. The intensities are determined using the data provided in the questionnaire (http://www.haisentitoilterremoto.it/) that are analysed using robust statistical techniques since they are not verified individually. Specifically, the assignment of MCS intensities greater or equal the VI degree of the MCS scale require opportune in situ verification by professional experts. The purple start shows the epicenter. This map is prepared every so often that the population fill in new questionnaires. The number of questionnaires used to determine the map and the date and time of the last adjournment are shown in the upper right part of the panel.
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
Rev 1000 ML 2.3 2019-04-09
16:07:41
44.83 9.68 30 2019-08-22
08:25:08
Bollettino Sismico Italiano INGV 70002691
Rev 100 ML 2.3 2019-04-09
16:07:40
44.83 9.68 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 44.83 ± 0.01
Longitude 9.68 ± 0.03
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
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 Takeoff_angle Residual Weight
IV.MBAL.EHZ. 2019-04-09T16:08:18.42 0.6 undecidable manual S 43 1.2006 54 -0.23 44
IV.MAGA.HHZ. 2019-04-09T16:08:17.13 0.3 undecidable manual S 35 1.1574 54 -0.49 64
IV.MDI.HHZ. 2019-04-09T16:08:13.04 0.3 undecidable manual S 1 0.9407 101 0.83 57
IV.MABI.HHZ. 2019-04-09T16:08:05.64 0.3 undecidable manual P 25 1.358 54 0.56 59
ST.VARA.EHZ. 2019-04-09T16:08:04.17 0.3 undecidable manual P 40 1.313 54 -0.28 64
GU.MAIM.HHZ. 2019-04-09T16:08:02.84 0.3 undecidable manual P 147 1.0819 54 1.58 39
IV.MBAL.EHZ. 2019-04-09T16:08:02.59 0.3 undecidable manual P 43 1.2006 54 -0.31 65
IV.MAGA.HHZ. 2019-04-09T16:08:01.92 0.3 undecidable manual P 35 1.1574 54 -0.38 65
IV.ZONE.HHZ. 2019-04-09T16:08:00.18 0.3 undecidable manual P 18 0.9839 101 0.28 69
GU.CARD.HHZ. 2019-04-09T16:08:00.73 0.3 undecidable manual P 144 0.9848 101 0.81 59
IV.MDI.HHZ. 2019-04-09T16:07:59.18 0.6 undecidable manual P 1 0.9407 101 0 49
MN.VLC.HHZ. 2019-04-09T16:07:58.34 0.3 undecidable manual P 143 0.8364 103 0.9 58
GU.GRAM.HHZ. 2019-04-09T16:07:57.91 0.6 undecidable manual S 141 0.4344 116 0.03 54
IV.PLMA.HHE. 2019-04-09T16:07:56.44 0.1 undecidable manual P 171 0.7878 104 -0.18 97
GU.EQUI.HHN. 2019-04-09T16:07:55.81 0.3 undecidable manual P 153 0.7428 105 -0.07 75
GU.RNCA.HHE. 2019-04-09T16:07:54.93 0.3 undecidable manual P 236 0.6295 108 0.91 62
IV.PCN.EHE. 2019-04-09T16:07:53.20 0.6 undecidable manual S 9 0.2086 138 0.71 46
IV.MSSA.HHE. 2019-04-09T16:07:51.94 0.1 undecidable manual P 193 0.5252 112 -0.39 98
IV.BOB.HHE. 2019-04-09T16:07:51.76 0.6 undecidable manual S 250 0.1763 143 -0.11 56
GU.GRAM.HHZ. 2019-04-09T16:07:50.32 0.1 undecidable manual P 141 0.4344 116 -0.59 95
IV.PCN.EHE. 2019-04-09T16:07:47.19 0.1 undecidable manual P 9 0.2086 138 -0.6 100
IV.BOB.HHE. 2019-04-09T16:07:46.80 0.1 undecidable manual P 250 0.1763 143 -0.63 97
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
GU.GRAM.HHE. ML:2 0.00023545885 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 3.074144E-5 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 0.00018966265 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 8.400063E-5 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 0.0002448984 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 0.00013027991 0.8192 AML other m 2019-04-09T16:08:24.87
IV.MABI.HHN. ML:1.8 3.360812E-5 0.1792 AML other m 2019-04-09T16:08:25.95
ST.VARA.EHE. ML:2.4 0.00012100129 0.3456 AML other m 2019-04-09T16:08:26.32
ST.VARA.HNE. ML:2.4 0.000116252655 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
Focal Mechanism in the area
Focal Mechanisms

Focal Mechanisms *

This map reports the focal mechanisms since 1977 in the region. The white and red beach ball symbols are mechanisms determined using the Regional Centroid Moment Tensor (RCMT, http://www.bo.ingv.it/RCMT) and are determined for earthquakes with magnitude larger than 4.5 in the Euro-Mediterranenan area. Occasionally, when there is a good source-receiver geometry of the target earthquake, the RCMT can be obtained also for earthquakes with magnitude larger than 4.0. The blue and white beach ball symbols indicate the mechanisms obtained from application of the Time Domain Moment Tensor (TDMT, http://terremoti.ingv.it/tdmt.html). This technique is used for M ≥ 3.5. The size of the beach ball sysmbol scales with the calculated moment magnitude, Mw.
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 full SEED format Download