Earthquake with magnitude of Md 2.5 on date 24-11-1990 and time 13:58:11 (Italy) in region 3 km W Premilcuore (FC)

A magnitude Md 2.5 earthquake occured in region: 3 km W Premilcuore (FC), on

  • 24-11-1990 12:58:11 (UTC)
  • 24-11-1990 13:58:11 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 43.98, 11.74 at 5 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
Premilcuore FC 3 799 799
Portico e San Benedetto FC 6 756 1555
San Godenzo FI 11 1167 2722
Tredozio FC 11 1212 3934
Rocca San Casciano FC 13 1910 5844
Galeata FC 14 2516 8360
Santa Sofia FC 14 4136 12496
Marradi FI 15 3139 15635
Civitella di Romagna FC 16 3786 19421
Londa FI 19 1840 21261
Dicomano FI 20 5515 26776

Municipalities with at least 50000 inhabitants

An earthquake occurred to
36 Km SW of Faenza (58541 inhabitants)
37 Km SW of Forlì (117913 inhabitants)
42 Km S of Imola (69797 inhabitants)
44 Km W of Cesena (96758 inhabitants)
45 Km NE of Firenze (382808 inhabitants)
51 Km E of Scandicci (50609 inhabitants)
52 Km E of Prato (191150 inhabitants)
58 Km N of Arezzo (99543 inhabitants)
61 Km SW of Ravenna (159116 inhabitants)
66 Km SE of Bologna (386663 inhabitants)
66 Km E of Pistoia (90315 inhabitants)
67 Km W of Rimini (147750 inhabitants)
80 Km NE of Siena (53903 inhabitants)
94 Km W of Pesaro (94582 inhabitants)
96 Km S of Ferrara (133155 inhabitants)
99 Km SE 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
Rev 1000 Md 2.5 1990-11-24
12:58:11
43.98 11.74 5 2013-07-15
08:41:04
Bollettino Sismico Italiano INGV 131099
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1990-11-24 12:58:11 ± 0.472
Latitude 43.98 ± 0.03
Longitude 11.74 ± 0.02
Depth (km) 5 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 131099

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) 3477.5
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 202
Number of associated phases, regardless of their use for origin computation 13
Number of defining phases 13
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) 0.00089
Epicentral distance of station farthest from the epicenter (degree) 0.01012
Number of stations at which the event was observed 7
Number of stations from which data was used for origin computation 7
Magnitude information

Md:2.5

Field Value
Value 2.5
Uncertainty
Num. used stations 4
Type of magnitude Md
Reference to an origin 131099
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 19:01:58
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
--.ASS.Z. 1990-11-24T12:58:49.20 10.0 undecidable manual SN 143 0.0101 -0.83 0.3
--.ARV.Z. 1990-11-24T12:58:47.00 10.0 undecidable manual SG 118 0.0089 0.93 0.4
--.PII.Z. 1990-11-24T12:58:44.00 10.0 undecidable manual SG 254 0.0082 0.49 0.6
--.ASS.Z. 1990-11-24T12:58:33.20 10.0 undecidable manual PN 143 0.0101 -0.47 1.2
--.ARV.Z. 1990-11-24T12:58:32.40 10.0 undecidable manual PG 118 0.0089 1.01 0.8
--.PII.Z. 1990-11-24T12:58:31.00 10.0 undecidable manual PG 254 0.0082 1.09 0.7
--.BDI.Z. 1990-11-24T12:58:27.00 10.0 undecidable manual PG 276 0.0074 -1.29 0.5
--.CRE.Z. 1990-11-24T12:58:26.38 10.0 undecidable manual SG 156 0.0035 -0.05 0.8
--.CRE.Z. 1990-11-24T12:58:18.73 10.0 undecidable manual PG 156 0.0035 -1.32 0.5
--.PGD.Z. 1990-11-24T12:58:16.36 10.0 undecidable manual SG 187 0.0009 0.68 0.6
--.SFI.Z. 1990-11-24T12:58:15.85 10.0 undecidable manual SG 133 0.0009 0.03 0.8
--.SFI.Z. 1990-11-24T12:58:13.57 10.0 negative manual PG 133 0.0009 -0.35 3.7
--.PGD.Z. 1990-11-24T12:58:13.93 10.0 undecidable manual PG 187 0.0009 0.09 2.1
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
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