Earthquake with magnitude of Md 2.2 on date 05-02-1990 and time 03:56:04 (UTC) in region 7 km W Premilcuore (FC)

A magnitude Md 2.2 earthquake occured in region: 7 km W Premilcuore (FC), on

  • 05-02-1990 03:56:04 (UTC)
  • 05-02-1990 04:56:04 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 43.9840, 11.6940 at 9 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 7 799 799
Portico e San Benedetto FC 9 756 1555
San Godenzo FI 9 1167 2722
Tredozio FC 11 1212 3934
Marradi FI 12 3139 7073
Rocca San Casciano FC 15 1910 8983
Londa FI 17 1840 10823
Dicomano FI 17 5515 16338
Galeata FC 18 2516 18854
Santa Sofia FC 18 4136 22990
Palazzuolo sul Senio FI 19 1154 24144
Vicchio FI 19 8044 32188
Civitella di Romagna FC 20 3786 35974

Municipalities with at least 50000 inhabitants

An earthquake occurred to
37 Km SW of Faenza (58541 inhabitants)
39 Km SW of Forlì (117913 inhabitants)
41 Km S of Imola (69797 inhabitants)
42 Km NE of Firenze (382808 inhabitants)
47 Km W of Cesena (96758 inhabitants)
48 Km NE of Scandicci (50609 inhabitants)
49 Km E of Prato (191150 inhabitants)
59 Km N of Arezzo (99543 inhabitants)
62 Km E of Pistoia (90315 inhabitants)
63 Km SW of Ravenna (159116 inhabitants)
63 Km SE of Bologna (386663 inhabitants)
70 Km W of Rimini (147750 inhabitants)
79 Km NE of Siena (53903 inhabitants)
95 Km S of Ferrara (133155 inhabitants)
96 Km SE of Modena (184973 inhabitants)
97 Km E of Lucca (89046 inhabitants)
98 Km W of Pesaro (94582 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 2.2 1990-02-05
03:56:04
43.984 11.694 9 2013-07-15
08:40:51
Bollettino Sismico Italiano INGV 109519
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1990-02-05 03:56:04 ± 0.308
Latitude 43.9840 ± 0.0238
Longitude 11.6940 ± 0.0176
Depth (km) 9 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 109519

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) 2996.9
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 179
Number of associated phases, regardless of their use for origin computation 10
Number of defining phases 10
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.4
Epicentral distance of station closest to the epicenter (degree) 0.00097
Epicentral distance of station farthest from the epicenter (degree) 0.00712
Number of stations at which the event was observed 5
Number of stations from which data was used for origin computation 5
Magnitude information

Md:2.2

Field Value
Value 2.2
Uncertainty
Num. used stations 3
Type of magnitude Md
Reference to an origin 109519
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 18:41:52
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
--.BDI.Z. 1990-02-05T03:56:32.00 10.0 undecidable manual SG 276 0.7881 -0.1 0.5
--.RSM.Z. 1990-02-05T03:56:24.16 10.0 undecidable manual SG 95 0.5439 -0.08 0.5
--.BDI.Z. 1990-02-05T03:56:20.50 10.0 undecidable manual PG 276 0.7881 0.08 1.4
--.CRE.Z. 1990-02-05T03:56:20.20 10.0 undecidable manual SG 153 0.3996 0.43 0.5
--.RSM.Z. 1990-02-05T03:56:17.19 10.0 undecidable manual PG 95 0.5439 1.31 0.4
--.CRE.Z. 1990-02-05T03:56:12.50 10.0 undecidable manual PG 153 0.3996 -0.8 0.8
--.SFI.Z. 1990-02-05T03:56:10.74 10.0 undecidable manual SG 125 0.1332 0.24 0.8
--.PGD.Z. 1990-02-05T03:56:10.21 10.0 undecidable manual SG 169 0.111 0.56 0.4
--.SFI.Z. 1990-02-05T03:56:07.57 10.0 positive manual PG 125 0.1332 -0.38 2.8
--.PGD.Z. 1990-02-05T03:56:07.64 10.0 undecidable manual PG 169 0.111 0.17 1.9
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