Earthquake with magnitude of Md 2.5 on date 26-02-1998 and time 10:14:13 (Italy) in region 9 km NE Forlì (FC)

A magnitude Md 2.5 earthquake occured in region: 9 km NE Forlì (FC), on

  • 26-02-1998 09:14:13 (UTC)
  • 26-02-1998 10:14:13 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 44.2960, 12.0820 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
Forlì FC 9 117913 117913
Russi RA 9 12247 130160
Forlimpopoli FC 13 13290 143450
Cotignola RA 15 7474 150924
Bagnacavallo RA 16 16739 167663
Faenza RA 16 58541 226204
Ravenna RA 17 159116 385320
Bertinoro FC 17 11059 396379
Castrocaro Terme e Terra del Sole FC 17 6426 402805
Meldola FC 19 9970 412775
Lugo RA 19 32390 445165

Municipalities with at least 50000 inhabitants

An earthquake occurred to
9 Km NE of Forlì (117913 inhabitants)
16 Km E of Faenza (58541 inhabitants)
17 Km SW of Ravenna (159116 inhabitants)
22 Km NW of Cesena (96758 inhabitants)
30 Km E of Imola (69797 inhabitants)
47 Km NW of Rimini (147750 inhabitants)
63 Km E of Bologna (386663 inhabitants)
70 Km SE of Ferrara (133155 inhabitants)
79 Km NW of Pesaro (94582 inhabitants)
88 Km NE of Firenze (382808 inhabitants)
89 Km S of Rovigo (51867 inhabitants)
90 Km NW of Fano (60888 inhabitants)
91 Km NE of Prato (191150 inhabitants)
94 Km NE of Scandicci (50609 inhabitants)
94 Km N of Arezzo (99543 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 2.5
ML-VAX 1.6
1998-02-26
09:14:13
44.296 12.082 5 2013-07-15
08:41:04
Bollettino Sismico Italiano INGV 323889
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1998-02-26 09:14:13 ± 0.195
Latitude 44.2960 ± 0.0104
Longitude 12.0820 ± 0.0168
Depth (km) 5 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 323889

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) 1769.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 128
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) 0.4
Epicentral distance of station closest to the epicenter (degree) 0.00380
Epicentral distance of station farthest from the epicenter (degree) 0.02113
Number of stations at which the event was observed 7
Number of stations from which data was used for origin computation 7
Magnitudes information

Md:2.5

Field Value
Value 2.5
Uncertainty
Num. used stations 2
Type of magnitude Md
Reference to an origin 323889
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 22:03:39

ML:1.6

Field Value
Value 1.6
Uncertainty
Num. used stations 5
Type of magnitude ML
Reference to an origin 323889
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
--.FVI.Z. 1998-02-26T09:14:52.67 10.0 undecidable manual PN 11 2.3421 0.17 1.1
--.BDI.Z. 1998-02-26T09:14:51.39 10.0 undecidable manual SN 257 1.0878 0.2 0.6
--.FB9.Z. 1998-02-26T09:14:40.82 10.0 undecidable manual SG 139 0.777 -0.66 0.2
--.CRE.Z. 1998-02-26T09:14:38.13 10.0 undecidable manual SG 187 0.6771 -0.1 0.8
--.SNTG.Z. 1998-02-26T09:14:37.29 10.0 undecidable manual PN 148 1.1988 0.38 1.2
--.BDI.Z. 1998-02-26T09:14:34.48 10.0 undecidable manual PN 257 1.0878 -0.75 0.6
--.CSNT.Z. 1998-02-26T09:14:33.14 10.0 undecidable manual PG 214 0.999 -0.51 1.2
--.SFI.Z. 1998-02-26T09:14:30.10 10.0 undecidable manual SG 203 0.4218 0.05 0.8
--.FB9.Z. 1998-02-26T09:14:29.41 10.0 undecidable manual PG 139 0.777 -0.22 1.9
--.CRE.Z. 1998-02-26T09:14:28.00 10.0 undecidable manual PG 187 0.6771 0.25 1.7
--.SFI.Z. 1998-02-26T09:14:23.54 10.0 undecidable manual PG 203 0.4218 0.57 0.8
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
Download
Type Description Link
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