Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of Md 2.5 on date 29-05-1990 and time 11:23:43 (UTC) in region 2 km SW Castell'Arquato (PC)

A magnitude Md 2.5 earthquake occured in region: 2 km SW Castell'Arquato (PC), on

  • 29-05-1990 11:23:43 (UTC)
  • 29-05-1990 13:23:43 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 44.8410, 9.8460 at 11 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
Castell'Arquato PC 2 4713 4713
Lugagnano Val d'Arda PC 2 4116 8829
Vernasca PC 5 2131 10960
Gropparello PC 9 2293 13253
Carpaneto Piacentino PC 10 7715 20968
Salsomaggiore Terme PR 11 19831 40799
Fiorenzuola d'Arda PC 11 15297 56096
Alseno PC 11 4714 60810
Pellegrino Parmense PR 14 1048 61858
Bore PR 14 749 62607
Cadeo PC 14 6118 68725
San Giorgio Piacentino PC 15 5792 74517
Vigolzone PC 16 4297 78814
Ponte dell'Olio PC 16 4794 83608
Fidenza PR 17 26770 110378
Morfasso PC 17 1024 111402
Podenzano PC 18 9167 120569
Pontenure PC 18 6512 127081
Besenzone PC 19 978 128059
Cortemaggiore PC 19 4644 132703
Varsi PR 20 1230 133933

Municipalities with at least 50000 inhabitants

An earthquake occurred to
26 Km SE of Piacenza (102191 inhabitants)
36 Km SW of Cremona (71901 inhabitants)
38 Km W of Parma (192836 inhabitants)
64 Km W of Reggio nell'Emilia (171345 inhabitants)
66 Km SE of Pavia (72576 inhabitants)
82 Km N of La Spezia (93959 inhabitants)
82 Km W of Carpi (70699 inhabitants)
83 Km SW of Brescia (196480 inhabitants)
87 Km NE of Genova (586655 inhabitants)
87 Km SE of Milano (1345851 inhabitants)
87 Km N of Carrara (63133 inhabitants)
88 Km W of Modena (184973 inhabitants)
91 Km SE of Sesto San Giovanni (81608 inhabitants)
92 Km N of Massa (69479 inhabitants)
94 Km SE of Vigevano (63310 inhabitants)
94 Km SE of Cinisello Balsamo (75078 inhabitants)
94 Km SE of Monza (122671 inhabitants)
96 Km S of Bergamo (119381 inhabitants)
97 Km E of Alessandria (93943 inhabitants)
99 Km SE of Rho (50434 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 2.5 1990-05-29
11:23:43		 44.841 9.846 11 2013-07-15
08:40:51		 Bollettino Sismico Italiano INGV 120019
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1990-05-29 11:23:43 ± 0.286
Latitude 44.8410 ± 0.0149
Longitude 9.8460 ± 0.0221
Depth (km) 11 ± 3 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 120019

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) 2407.8
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 113
Number of associated phases, regardless of their use for origin computation 18
Number of defining phases 18
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.6
Epicentral distance of station closest to the epicenter (degree) 0.00259
Epicentral distance of station farthest from the epicenter (degree) 0.01684
Number of stations at which the event was observed 9
Number of stations from which data was used for origin computation 9
Magnitude information

Md:2.5

Field Value
Value 2.5
Uncertainty
Num. used stations 6
Type of magnitude Md
Reference to an origin 120019
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 18:51:25
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
--.DOI.Z. 1990-05-29T11:24:39.50 10.0 undecidable manual SN 260 1.8648 1.22 0.2
--.ORO.Z. 1990-05-29T11:24:29.50 10.0 undecidable manual SN 301 1.5318 -0.48 0.6
--.VAI.Z. 1990-05-29T11:24:22.00 10.0 undecidable manual SN 323 1.2654 -1.88 0.1
--.PII.Z. 1990-05-29T11:24:22.50 10.0 undecidable manual SN 156 1.2099 -0.13 0.7
--.CKI.Z. 1990-05-29T11:24:20.00 10.0 undecidable manual SN 249 1.1877 -1.95 0.1
--.DOI.Z. 1990-05-29T11:24:16.50 10.0 undecidable manual PN 260 1.8648 1.47 0.3
--.BDI.Z. 1990-05-29T11:24:16.00 10.0 undecidable manual SG 144 0.9435 0.48 0.7
--.MDI.Z. 1990-05-29T11:24:15.73 10.0 undecidable manual SG 353 0.9324 0.36 0.7
--.SAL.Z. 1990-05-29T11:24:14.00 10.0 undecidable manual SG 31 0.8991 -0.15 0.8
--.ORO.Z. 1990-05-29T11:24:10.00 10.0 undecidable manual PN 301 1.5318 -0.23 1.6
--.VAI.Z. 1990-05-29T11:24:07.00 10.0 undecidable manual PN 323 1.2654 0.29 1.7
--.CKI.Z. 1990-05-29T11:24:06.50 10.0 negative manual PN 249 1.1877 0.91 2.1
--.PII.Z. 1990-05-29T11:24:05.20 10.0 undecidable manual PN 156 1.2099 -0.79 1.2
--.BDI.Z. 1990-05-29T11:24:01.50 10.0 undecidable manual PG 144 0.9435 -0.38 1.8
--.SAL.Z. 1990-05-29T11:24:01.00 10.0 undecidable manual PG 31 0.8991 -0.09 1.9
--.MDI.Z. 1990-05-29T11:23:58.70 10.0 undecidable manual PG! 353 0.9324 -3.73 0
--.BOB.Z. 1990-05-29T11:23:54.16 10.0 undecidable manual SG 255 0.2886 -0.37 1.1
--.BOB.Z. 1990-05-29T11:23:49.00 10.0 negative manual PG 255 0.2886 -0.76 2.6
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