Earthquake with magnitude of Md 2.4 on date 09-11-1993 and time 17:54:11 (Italy) in region 3 km SW Forlimpopoli (FC)

A magnitude Md 2.4 earthquake occured in region: 3 km SW Forlimpopoli (FC), on

  • 09-11-1993 16:54:11 (UTC)
  • 09-11-1993 17:54:11 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 44.1730, 12.1030 at 7 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
Forlimpopoli FC 3 13290 13290
Bertinoro FC 4 11059 24349
Meldola FC 6 9970 34319
Forlì FC 8 117913 152232
Cesena FC 12 96758 248990
Castrocaro Terme e Terra del Sole FC 12 6426 255416
Predappio FC 13 6346 261762
Dovadola FC 18 1653 263415
Montiano FC 19 1716 265131
Gambettola FC 20 10660 275791

Municipalities with at least 50000 inhabitants

An earthquake occurred to
8 Km SE of Forlì (117913 inhabitants)
12 Km W of Cesena (96758 inhabitants)
22 Km SE of Faenza (58541 inhabitants)
28 Km S of Ravenna (159116 inhabitants)
37 Km SE of Imola (69797 inhabitants)
39 Km W of Rimini (147750 inhabitants)
70 Km SE of Bologna (386663 inhabitants)
71 Km W of Pesaro (94582 inhabitants)
80 Km N of Arezzo (99543 inhabitants)
81 Km NE of Firenze (382808 inhabitants)
82 Km W of Fano (60888 inhabitants)
83 Km SE of Ferrara (133155 inhabitants)
87 Km E of Prato (191150 inhabitants)
87 Km NE of Scandicci (50609 inhabitants)
98 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
Bulletin
Rev1000
Md 2.4
ML-VAX 1.6
1993-11-09
16:54:11
44.173 12.103 7 2013-07-15
08:40:51
Bollettino Sismico Italiano INGV 199929
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1993-11-09 16:54:11 ± 0.552
Latitude 44.1730 ± 0.0308
Longitude 12.1030 ± 0.0197
Depth (km) 7 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 199929

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) 3766.1
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 271
Number of associated phases, regardless of their use for origin computation 11
Number of defining phases 11
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.2
Epicentral distance of station closest to the epicenter (degree) 0.00291
Epicentral distance of station farthest from the epicenter (degree) 0.01060
Number of stations at which the event was observed 6
Number of stations from which data was used for origin computation 6
Magnitudes information

Md:2.4

Field Value
Value 2.4
Uncertainty
Num. used stations 4
Type of magnitude Md
Reference to an origin 199929
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 20:07:55

ML:1.6

Field Value
Value 1.6
Uncertainty
Num. used stations 3
Type of magnitude ML
Reference to an origin 199929
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
--.ARV.Z. 1993-11-09T16:54:43.41 10.0 undecidable manual SG 137 0.8991 0.48 0.2
--.ASS.Z. 1993-11-09T16:54:34.26 10.0 undecidable manual PN 159 1.1766 0.2 0.8
--.CRE.Z. 1993-11-09T16:54:31.60 10.0 undecidable manual SG 191 0.555 -0.33 0.4
--.ARV.Z. 1993-11-09T16:54:28.64 10.0 undecidable manual PG 137 0.8991 -0.95 0.1
--.PGD.Z. 1993-11-09T16:54:27.26 10.0 undecidable manual SG 222 0.3996 0.44 0.3
--.RSM.Z. 1993-11-09T16:54:25.70 10.0 undecidable manual SG 133 0.3441 0.66 0.1
--.SFI.Z. 1993-11-09T16:54:23.58 10.0 undecidable manual SG 214 0.3219 -0.54 0.2
--.CRE.Z. 1993-11-09T16:54:22.88 10.0 undecidable manual PG 191 0.555 -0.36 1.2
--.PGD.Z. 1993-11-09T16:54:20.32 10.0 negative manual PG 222 0.3996 0.03 3.1
--.RSM.Z. 1993-11-09T16:54:19.24 10.0 undecidable manual PG 133 0.3441 -0.02 1.6
--.SFI.Z. 1993-11-09T16:54:18.82 10.0 negative manual PG 214 0.3219 0.09 3
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
Download
Type Description Link
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