Earthquake with magnitude of Md 2.0 on date 18-12-1995 and time 15:03:40 (Italy) in region 2 km E Portico e San Benedetto (FC)

A magnitude Md 2.0 earthquake occured in region: 2 km E Portico e San Benedetto (FC), on

  • 18-12-1995 14:03:40 (UTC)
  • 18-12-1995 15:03:40 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 44.0310, 11.8060 at 20 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
Portico e San Benedetto FC 2 756 756
Rocca San Casciano FC 5 1910 2666
Premilcuore FC 6 799 3465
Tredozio FC 7 1212 4677
Galeata FC 9 2516 7193
Civitella di Romagna FC 11 3786 10979
Dovadola FC 12 1653 12632
Santa Sofia FC 12 4136 16768
Modigliana FC 14 4560 21328
Predappio FC 16 6346 27674
Marradi FI 16 3139 30813
San Godenzo FI 19 1167 31980
Castrocaro Terme e Terra del Sole FC 20 6426 38406

Municipalities with at least 50000 inhabitants

An earthquake occurred to
29 Km SW of Forlì (117913 inhabitants)
29 Km S of Faenza (58541 inhabitants)
37 Km S of Imola (69797 inhabitants)
37 Km W of Cesena (96758 inhabitants)
53 Km NE of Firenze (382808 inhabitants)
53 Km SW of Ravenna (159116 inhabitants)
58 Km NE of Scandicci (50609 inhabitants)
59 Km E of Prato (191150 inhabitants)
61 Km W of Rimini (147750 inhabitants)
63 Km N of Arezzo (99543 inhabitants)
64 Km SE of Bologna (386663 inhabitants)
72 Km E of Pistoia (90315 inhabitants)
88 Km NE of Siena (53903 inhabitants)
90 Km W of Pesaro (94582 inhabitants)
91 Km S of Ferrara (133155 inhabitants)
98 Km SE of Modena (184973 inhabitants)
99 Km W of Fano (60888 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 2.0
ML-VAX 1.7
1995-12-18
14:03:40
44.031 11.806 20 2013-07-15
08:40:51
Bollettino Sismico Italiano INGV 237769
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1995-12-18 14:03:40 ± 0.837
Latitude 44.0310 ± 0.0615
Longitude 11.8060 ± 0.1106
Depth (km) 20 ± 6 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 237769

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) 11181.3
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 274
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) 0.4
Epicentral distance of station closest to the epicenter (degree) 0.00113
Epicentral distance of station farthest from the epicenter (degree) 0.00696
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:2.0

Field Value
Value 2.0
Uncertainty
Num. used stations 4
Type of magnitude Md
Reference to an origin 237769
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 20:45:08

ML:1.7

Field Value
Value 1.7
Uncertainty
Num. used stations 2
Type of magnitude ML
Reference to an origin 237769
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
--.FB9.Z. 1995-12-18T14:04:08.42 10.0 undecidable manual SN 115 0.777 1.09 0.1
--.CRE.Z. 1995-12-18T14:03:56.60 10.0 undecidable manual SG 165 0.4218 -0.2 0.5
--.FB9.Z. 1995-12-18T14:03:56.22 10.0 undecidable manual PN 115 0.777 0.31 0.9
--.PGD.Z. 1995-12-18T14:03:50.48 10.0 undecidable manual SG 201 0.1665 1.52 0
--.CRE.Z. 1995-12-18T14:03:48.68 10.0 undecidable manual PG 165 0.4218 -0.84 0.5
--.PGD.Z. 1995-12-18T14:03:45.57 10.0 positive manual PG 201 0.1665 0.26 2.6
--.SFI.Z. 1995-12-18T14:03:44.45 10.0 positive manual PG 166 0.1221 -0.39 2.3
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
Download
Type Description Link
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QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download