Earthquake with magnitude of Md 2.1 on date 05-12-1999 and time 00:24:46 (UTC) in region 1 km E Meldola (FC)

A magnitude Md 2.1 earthquake occured in region: 1 km E Meldola (FC), on

  • 05-12-1999 00:24:46 (UTC)
  • 05-12-1999 01:24:46 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 44.1320, 12.0790 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
Meldola FC 2 9970 9970
Bertinoro FC 5 11059 21029
Forlimpopoli FC 7 13290 34319
Predappio FC 8 6346 40665
Forlì FC 11 117913 158578
Castrocaro Terme e Terra del Sole FC 11 6426 165004
Cesena FC 13 96758 261762
Dovadola FC 15 1653 263415
Civitella di Romagna FC 18 3786 267201
Montiano FC 19 1716 268917

Municipalities with at least 50000 inhabitants

An earthquake occurred to
11 Km S of Forlì (117913 inhabitants)
13 Km W of Cesena (96758 inhabitants)
23 Km SE of Faenza (58541 inhabitants)
33 Km SW of Ravenna (159116 inhabitants)
38 Km SE of Imola (69797 inhabitants)
40 Km W of Rimini (147750 inhabitants)
71 Km W of Pesaro (94582 inhabitants)
71 Km SE of Bologna (386663 inhabitants)
76 Km N of Arezzo (99543 inhabitants)
77 Km NE of Firenze (382808 inhabitants)
82 Km W of Fano (60888 inhabitants)
83 Km NE of Scandicci (50609 inhabitants)
83 Km E of Prato (191150 inhabitants)
86 Km SE of Ferrara (133155 inhabitants)
95 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 2.1 1999-12-05
00:24:46
44.132 12.079 10 2013-07-15
08:41:04
Bollettino Sismico Italiano INGV 377789
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1999-12-05 00:24:46 ± 0.47
Latitude 44.1320 ± 0.0260
Longitude 12.0790 ± 0.0160
Depth (km) 10 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 377789

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) 3162.3
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 7
Number of defining phases 7
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) 0.00251
Epicentral distance of station farthest from the epicenter (degree) 0.00599
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:2.1

Field Value
Value 2.1
Uncertainty
Num. used stations 2
Type of magnitude Md
Reference to an origin 377789
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 22:54:47
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
--.FB9.Z. 1999-12-05T00:25:09.37 10.0 undecidable manual SG 130 0.666 -0.01 0.6
--.CRE.Z. 1999-12-05T00:25:04.91 10.0 undecidable manual SG 190 0.5106 0.27 0.5
--.FB9.Z. 1999-12-05T00:24:59.38 10.0 undecidable manual PG 130 0.666 -0.12 1.4
--.SFI.Z. 1999-12-05T00:24:57.52 10.0 undecidable manual SG 216 0.2775 0.53 0.2
--.CRE.Z. 1999-12-05T00:24:56.34 10.0 negative manual PG 190 0.5106 -0.43 1.9
--.RSM.Z. 1999-12-05T00:24:53.90 10.0 undecidable manual PG 126 0.333 0.55 0.7
--.SFI.Z. 1999-12-05T00:24:52.53 10.0 undecidable manual PG 216 0.2775 0.18 1.6
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