Earthquake with magnitude of Md 2.2 on date 01-02-1993 and time 16:59:06 (UTC) in region 3 km W Forlimpopoli (FC)

A magnitude Md 2.2 earthquake occured in region: 3 km W Forlimpopoli (FC), on

  • 01-02-1993 16:59:06 (UTC)
  • 01-02-1993 17:59:06 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 44.1950, 12.0930 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
Forlimpopoli FC 3 13290 13290
Forlì FC 5 117913 131203
Bertinoro FC 6 11059 142262
Meldola FC 8 9970 152232
Castrocaro Terme e Terra del Sole FC 12 6426 158658
Cesena FC 14 96758 255416
Predappio FC 14 6346 261762
Dovadola FC 18 1653 263415
Faenza RA 20 58541 321956

Municipalities with at least 50000 inhabitants

An earthquake occurred to
5 Km SE of Forlì (117913 inhabitants)
14 Km W of Cesena (96758 inhabitants)
20 Km SE of Faenza (58541 inhabitants)
26 Km SW of Ravenna (159116 inhabitants)
35 Km SE of Imola (69797 inhabitants)
41 Km W of Rimini (147750 inhabitants)
68 Km E of Bologna (386663 inhabitants)
73 Km W of Pesaro (94582 inhabitants)
81 Km SE of Ferrara (133155 inhabitants)
82 Km NE of Firenze (382808 inhabitants)
83 Km N of Arezzo (99543 inhabitants)
84 Km W of Fano (60888 inhabitants)
87 Km E of Prato (191150 inhabitants)
88 Km NE of Scandicci (50609 inhabitants)
98 Km E of Pistoia (90315 inhabitants)
100 Km S of Rovigo (51867 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
ML-VAX 1.6
1993-02-01
16:59:06
44.195 12.093 5 2013-07-15
08:41:04
Bollettino Sismico Italiano INGV 179799
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1993-02-01 16:59:06 ± 0.457
Latitude 44.1950 ± 0.0232
Longitude 12.0930 ± 0.0163
Depth (km) 5 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 179799

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) 2889.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 232
Number of associated phases, regardless of their use for origin computation 9
Number of defining phases 9
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) 0.00300
Epicentral distance of station farthest from the epicenter (degree) 0.00971
Number of stations at which the event was observed 5
Number of stations from which data was used for origin computation 5
Magnitudes information

Md:2.2

Field Value
Value 2.2
Uncertainty
Num. used stations 4
Type of magnitude Md
Reference to an origin 179799
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 19:48:38

ML:1.6

Field Value
Value 1.6
Uncertainty
Num. used stations 2
Type of magnitude ML
Reference to an origin 179799
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
--.CRE.Z. 1993-02-01T16:59:29.16 10.0 undecidable manual SG 189 0.5772 0.73 0.2
--.BDI.Z. 1993-02-01T16:59:28.93 10.0 undecidable manual PN 263 1.0767 0.45 0.8
--.PGD.Z. 1993-02-01T16:59:22.25 10.0 undecidable manual SG 219 0.4107 -0.68 0.3
--.RSM.Z. 1993-02-01T16:59:21.48 10.0 undecidable manual SG 135 0.3663 0.31 0.7
--.SFI.Z. 1993-02-01T16:59:20.58 10.0 undecidable manual SG 211 0.333 0.57 0.4
--.CRE.Z. 1993-02-01T16:59:19.37 10.0 undecidable manual PG 189 0.5772 0.09 2
--.PGD.Z. 1993-02-01T16:59:15.52 10.0 undecidable manual PG 219 0.4107 -0.6 0.9
--.RSM.Z. 1993-02-01T16:59:14.77 10.0 undecidable manual PG 135 0.3663 -0.33 1.7
--.SFI.Z. 1993-02-01T16:59:14.46 10.0 undecidable manual PG 211 0.333 0.04 2.2
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