Earthquake with magnitude of Md 2.3 on date 21-03-2005 and time 05:35:06 (UTC) in region 4 km N Gropparello (PC)

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

  • 21-03-2005 05:35:06 (UTC)
  • 21-03-2005 06:35:06 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 44.8690, 9.7180 at 10 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 6 4794 7087
Vigolzone PC 6 4297 11384
Carpaneto Piacentino PC 8 7715 19099
San Giorgio Piacentino PC 10 5792 24891
Lugagnano Val d'Arda PC 10 4116 29007
Podenzano PC 10 9167 38174
Rivergaro PC 11 7005 45179
Vernasca PC 12 2131 47310
Castell'Arquato PC 12 4713 52023
Bettola PC 14 2828 54851
Travo PC 14 2087 56938
Cadeo PC 15 6118 63056
Pontenure PC 16 6512 69568
Morfasso PC 16 1024 70592
Fiorenzuola d'Arda PC 17 15297 85889
Gazzola PC 17 2056 87945
Gossolengo PC 17 5637 93582
Bore PR 18 749 94331
Agazzano PC 18 2096 96427
Piozzano PC 19 641 97068
Alseno PC 20 4714 101782
Gragnano Trebbiense PC 20 4554 106336

Municipalities with at least 50000 inhabitants

An earthquake occurred to
21 Km S of Piacenza (102191 inhabitants)
38 Km SW of Cremona (71901 inhabitants)
49 Km W of Parma (192836 inhabitants)
56 Km SE of Pavia (72576 inhabitants)
75 Km W of Reggio nell'Emilia (171345 inhabitants)
78 Km SE of Milano (1345851 inhabitants)
80 Km NE of Genova (586655 inhabitants)
83 Km SE of Sesto San Giovanni (81608 inhabitants)
84 Km SE of Vigevano (63310 inhabitants)
84 Km SW of Brescia (196480 inhabitants)
85 Km N of La Spezia (93959 inhabitants)
86 Km SE of Cinisello Balsamo (75078 inhabitants)
87 Km E of Alessandria (93943 inhabitants)
87 Km SE of Monza (122671 inhabitants)
91 Km SE of Rho (50434 inhabitants)
92 Km S of Bergamo (119381 inhabitants)
93 Km W of Carpi (70699 inhabitants)
93 Km NW of Carrara (63133 inhabitants)
98 Km NW of Massa (69479 inhabitants)
99 Km W of Modena (184973 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
Md 2.3
ML-VAX 1.8
2005-03-21
05:35:06
44.869 9.718 10 2013-07-15
08:41:04
Bollettino Sismico Italiano INGV 512929
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2005-03-21 05:35:06 ± 0.216
Latitude 44.8690 ± 0.0152
Longitude 9.7180 ± 0.0151
Depth (km) 10 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 512929

Uncertainty

Field Value
Preferred uncertainty description horizontal uncertainty
Semi-major axis of confidence ellipse (meter)
Semi-minor axis of confidence ellipse (meter)
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi)
Circular confidence region, given by single value of horizontal uncertainty (meter) 2063.6
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 165
Number of associated phases, regardless of their use for origin computation 8
Number of defining phases 8
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.3
Epicentral distance of station closest to the epicenter (degree) 0.00194
Epicentral distance of station farthest from the epicenter (degree) 0.01287
Number of stations at which the event was observed 5
Number of stations from which data was used for origin computation 5
Magnitudes information

Md:2.3

Field Value
Value 2.3
Uncertainty
Num. used stations 3
Type of magnitude Md
Reference to an origin 512929
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 01:12:10

ML:1.8

Field Value
Value 1.8
Uncertainty
Num. used stations 3
Type of magnitude ML
Reference to an origin 512929
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2015-04-28 13:07:13
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
--.BDI.Z. 2005-03-21T05:35:41.20 10.0 undecidable manual SG 141 1.0101 -0.04 0.6
--.ORO.Z. 2005-03-21T05:35:32.72 10.0 undecidable manual PN 302 1.4319 0.55 0.6
--.ERBM.Z. 2005-03-21T05:35:30.24 10.0 undecidable manual SG 131 0.666 0.52 0.1
--.VAI.Z. 2005-03-21T05:35:28.68 10.0 undecidable manual PN 326 1.1988 -0.2 1.1
--.BDI.Z. 2005-03-21T05:35:26.57 10.0 undecidable manual PG 141 1.0101 0.17 1.2
--.ERBM.Z. 2005-03-21T05:35:19.20 10.0 undecidable manual PG 131 0.666 -0.83 0.3
--.BOB.Z. 2005-03-21T05:35:15.15 10.0 undecidable manual SG 241 0.2109 -0.11 0.6
--.BOB.Z. 2005-03-21T05:35:11.50 10.0 positive manual PG 241 0.2109 0 3.4
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