Earthquake with magnitude of Md 2.2 on date 06-08-1990 and time 15:25:23 (Italy) in region 2 km S Bertinoro (FC)

A magnitude Md 2.2 earthquake occured in region: 2 km S Bertinoro (FC), on

  • 06-08-1990 13:25:23 (UTC)
  • 06-08-1990 15:25:23 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 44.13, 12.14 at 8 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
Bertinoro FC 2 11059 11059
Meldola FC 6 9970 21029
Forlimpopoli FC 7 13290 34319
Cesena FC 8 96758 131077
Predappio FC 13 6346 137423
Forlì FC 13 117913 255336
Montiano FC 14 1716 257052
Castrocaro Terme e Terra del Sole FC 16 6426 263478
Gambettola FC 16 10660 274138
Longiano FC 16 7126 281264
Roncofreddo FC 17 3386 284650
Sogliano al Rubicone FC 19 3195 287845
Mercato Saraceno FC 20 6886 294731
Dovadola FC 20 1653 296384

Municipalities with at least 50000 inhabitants

An earthquake occurred to
8 Km W of Cesena (96758 inhabitants)
13 Km SE of Forlì (117913 inhabitants)
27 Km SE of Faenza (58541 inhabitants)
33 Km S of Ravenna (159116 inhabitants)
35 Km W of Rimini (147750 inhabitants)
42 Km SE of Imola (69797 inhabitants)
67 Km W of Pesaro (94582 inhabitants)
75 Km SE of Bologna (386663 inhabitants)
76 Km N of Arezzo (99543 inhabitants)
77 Km W of Fano (60888 inhabitants)
81 Km E of Firenze (382808 inhabitants)
87 Km E of Scandicci (50609 inhabitants)
88 Km E of Prato (191150 inhabitants)
89 Km SE of Ferrara (133155 inhabitants)
100 Km E of Pistoia (90315 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 2.2
ML-VAX 2.0
1990-08-06
13:25:23
44.13 12.14 8 2013-07-15
08:40:51
Bollettino Sismico Italiano INGV 124429
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1990-08-06 13:25:23 ± 0.99
Latitude 44.13 ± 0.12
Longitude 12.14 ± 0.12
Depth (km) 8 ± 23 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 124429

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) 16532.5
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 287
Number of associated phases, regardless of their use for origin computation 7
Number of defining phases 7
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) 0.00275
Epicentral distance of station farthest from the epicenter (degree) 0.00996
Number of stations at which the event was observed 4
Number of stations from which data was used for origin computation 4
Magnitudes information

Md:2.2

Field Value
Value 2.2
Uncertainty
Num. used stations 3
Type of magnitude Md
Reference to an origin 124429
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 18:55:38

ML:2

Field Value
Value 2
Uncertainty
Num. used stations 1
Type of magnitude ML
Reference to an origin 124429
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 Takeoff_angle Residual Weight
--.BDI.Z. 1990-08-06T13:25:47.00 10.0 undecidable manual PN 266 0.01 1.62 0.1
--.CRE.Z. 1990-08-06T13:25:43.00 10.0 undecidable manual SG 194 0.0047 -0.01 0.6
--.PGD.Z. 1990-08-06T13:25:38.19 10.0 undecidable manual SG 229 0.0035 -0.5 0.4
--.SFI.Z. 1990-08-06T13:25:36.20 10.0 undecidable manual SG 222 0.0028 0.26 0.6
--.CRE.Z. 1990-08-06T13:25:34.89 10.0 undecidable manual PG 194 0.0047 -0.01 1.4
--.PGD.Z. 1990-08-06T13:25:32.19 10.0 undecidable manual PG 229 0.0035 -0.21 1.3
--.SFI.Z. 1990-08-06T13:25:30.64 10.0 positive manual PG 222 0.0028 -0.18 2.7
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
Download
Type Description Link
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