Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of Md 2.5 on date 07-09-1992 and time 08:47:29 (UTC) in region 4 km W Rocca San Casciano (FC)

A magnitude Md 2.5 earthquake occured in region: 4 km W Rocca San Casciano (FC), on

  • 07-09-1992 08:47:29 (UTC)
  • 07-09-1992 10:47:29 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 44.0680, 11.7980 at 12 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
Rocca San Casciano FC 4 1910 1910
Tredozio FC 5 1212 3122
Portico e San Benedetto FC 5 756 3878
Dovadola FC 9 1653 5531
Modigliana FC 10 4560 10091
Premilcuore FC 10 799 10890
Galeata FC 12 2516 13406
Civitella di Romagna FC 13 3786 17192
Marradi FI 15 3139 20331
Predappio FC 15 6346 26677
Santa Sofia FC 16 4136 30813
Castrocaro Terme e Terra del Sole FC 17 6426 37239
Brisighella RA 17 7639 44878

Municipalities with at least 50000 inhabitants

An earthquake occurred to
25 Km S of Faenza (58541 inhabitants)
26 Km SW of Forlì (117913 inhabitants)
33 Km S of Imola (69797 inhabitants)
36 Km W of Cesena (96758 inhabitants)
50 Km SW of Ravenna (159116 inhabitants)
55 Km NE of Firenze (382808 inhabitants)
60 Km E of Prato (191150 inhabitants)
60 Km SE of Bologna (386663 inhabitants)
60 Km NE of Scandicci (50609 inhabitants)
61 Km W of Rimini (147750 inhabitants)
67 Km N of Arezzo (99543 inhabitants)
72 Km E of Pistoia (90315 inhabitants)
87 Km S of Ferrara (133155 inhabitants)
91 Km W of Pesaro (94582 inhabitants)
91 Km NE of Siena (53903 inhabitants)
95 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
Bulletin
Rev1000 		Md 2.5
ML-VAX 1.5 		1992-09-07
08:47:29		 44.068 11.798 11 2013-07-15
08:40:51		 Bollettino Sismico Italiano INGV 172919
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1992-09-07 08:47:29 ± 0.69
Latitude 44.0680 ± 0.0452
Longitude 11.7980 ± 0.0626
Depth (km) 11 ± 6 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 172919

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) 7091.6
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 109
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) 0.5
Epicentral distance of station closest to the epicenter (degree) 0.00146
Epicentral distance of station farthest from the epicenter (degree) 0.02356
Number of stations at which the event was observed 8
Number of stations from which data was used for origin computation 8
Magnitudes information

Md:2.5

Field Value
Value 2.5
Uncertainty
Num. used stations 4
Type of magnitude Md
Reference to an origin 172919
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 19:41:47

ML:1.5

Field Value
Value 1.5
Uncertainty
Num. used stations 3
Type of magnitude ML
Reference to an origin 172919
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
--.FVI.Z. 1992-09-07T08:48:12.00 10.0 undecidable manual PN 14 2.6196 0.83 0.3
--.ARV.Z. 1992-09-07T08:48:03.00 10.0 undecidable manual SN 124 0.999 -0.42 0.4
--.BDI.Z. 1992-09-07T08:48:00.59 10.0 undecidable manual SG 270 0.8547 1.62 0
--.ASS.Z. 1992-09-07T08:47:51.50 10.0 undecidable manual PN 148 1.1766 0.06 1.2
--.ARV.Z. 1992-09-07T08:47:48.50 10.0 undecidable manual PN 124 0.999 -0.52 1
--.GU9.Z. 1992-09-07T08:47:46.00 10.0 undecidable manual PG 288 0.9102 -1.36 0.2
--.CRE.Z. 1992-09-07T08:47:46.50 10.0 undecidable manual SG 166 0.4551 0.44 0.5
--.BDI.Z. 1992-09-07T08:47:45.83 10.0 undecidable manual PG 270 0.8547 -0.63 1
--.SFI.E. 1992-09-07T08:47:40.80 10.0 undecidable manual SG! 167 0.1665 4.09 0
--.PGD.Z. 1992-09-07T08:47:40.45 10.0 undecidable manual SG! 195 0.1998 2.72 0
--.CRE.Z. 1992-09-07T08:47:38.16 10.0 undecidable manual PG 166 0.4551 -0.84 0.7
--.SFI.Z. 1992-09-07T08:47:34.00 10.0 negative manual PG 167 0.1665 0.4 2.6
--.PGD.Z. 1992-09-07T08:47:34.50 10.0 negative manual PG 195 0.1998 -0.14 3
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