Earthquake with magnitude of Md 2.4 on date 23-07-1994 and time 03:42:51 (Italy) in region 2 km NW Bertinoro (FC)

A magnitude Md 2.4 earthquake occured in region: 2 km NW Bertinoro (FC), on

  • 23-07-1994 01:42:51 (UTC)
  • 23-07-1994 03:42:51 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 44.1660, 12.1270 at 10 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
Forlimpopoli FC 3 13290 24349
Meldola FC 7 9970 34319
Forlì FC 9 117913 152232
Cesena FC 10 96758 248990
Predappio FC 14 6346 255336
Castrocaro Terme e Terra del Sole FC 14 6426 261762
Montiano FC 17 1716 263478
Gambettola FC 18 10660 274138
Longiano FC 19 7126 281264
Dovadola FC 20 1653 282917

Municipalities with at least 50000 inhabitants

An earthquake occurred to
9 Km SE of Forlì (117913 inhabitants)
10 Km W of Cesena (96758 inhabitants)
24 Km SE of Faenza (58541 inhabitants)
29 Km S of Ravenna (159116 inhabitants)
37 Km W of Rimini (147750 inhabitants)
39 Km SE of Imola (69797 inhabitants)
69 Km W of Pesaro (94582 inhabitants)
72 Km SE of Bologna (386663 inhabitants)
80 Km W of Fano (60888 inhabitants)
80 Km N of Arezzo (99543 inhabitants)
82 Km NE of Firenze (382808 inhabitants)
85 Km SE of Ferrara (133155 inhabitants)
88 Km NE of Scandicci (50609 inhabitants)
88 Km E of Prato (191150 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 1994-07-23
01:42:51
44.166 12.127 10 2013-07-15
08:41:04
Bollettino Sismico Italiano INGV 213349
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1994-07-23 01:42:51 ± 1.423
Latitude 44.1660 ± 0.0976
Longitude 12.1270 ± 0.0319
Depth (km) 10 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 213349

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) 11145.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 270
Number of associated phases, regardless of their use for origin computation 8
Number of defining phases 8
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) 0.00793
Number of stations at which the event was observed 4
Number of stations from which data was used for origin computation 4
Magnitude information

Md:2.4

Field Value
Value 2.4
Uncertainty
Num. used stations 3
Type of magnitude Md
Reference to an origin 213349
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 20:21:07
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
--.ARV.Z. 1994-07-23T01:43:22.88 10.0 undecidable manual SG 138 0.8769 1.26 0
--.ARV.Z. 1994-07-23T01:43:08.65 10.0 undecidable manual PG 138 0.8769 -0.09 1.1
--.PGD.Z. 1994-07-23T01:43:06.99 10.0 undecidable manual SG 225 0.3996 0.73 0.2
--.SFI.Z. 1994-07-23T01:43:03.60 10.0 undecidable manual SG 217 0.3219 -0.57 0.3
--.RSM.Z. 1994-07-23T01:43:02.40 10.0 undecidable manual SG 135 0.3219 -1.33 0
--.PGD.Z. 1994-07-23T01:42:59.83 10.0 undecidable manual PG 225 0.3996 -0.04 1.6
--.SFI.Z. 1994-07-23T01:42:58.30 10.0 negative manual PG 217 0.3219 -0.06 3.2
--.RSM.Z. 1994-07-23T01:42:58.62 10.0 undecidable manual PG 135 0.3219 0.21 1.5
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