Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.8 on date 08-03-2013 and time 00:41:45 (UTC) in region 4 km N Predappio (FC)

A magnitude ML 1.8 earthquake occured in region: 4 km N Predappio (FC), on

  • 08-03-2013 00:41:45 (UTC)
  • 08-03-2013 01:41:45 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 44.1360, 11.9950 at 38 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.

Hai sentito il terremoto? Clicca qui

Did you feel it? Fill in the questionnaire.

Municipalities within 20 km from the epicenter

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Predappio FC 4 6346 6346
Meldola FC 5 9970 16316
Castrocaro Terme e Terra del Sole FC 6 6426 22742
Dovadola FC 9 1653 24395
Forlì FC 10 117913 142308
Bertinoro FC 11 11059 153367
Forlimpopoli FC 12 13290 166657
Rocca San Casciano FC 15 1910 168567
Civitella di Romagna FC 15 3786 172353
Modigliana FC 16 4560 176913
Galeata FC 17 2516 179429
Faenza RA 19 58541 237970
Cesena FC 20 96758 334728

Municipalities with at least 50000 inhabitants

An earthquake occurred to
10 Km SW of Forlì (117913 inhabitants)
19 Km SE of Faenza (58541 inhabitants)
20 Km W of Cesena (96758 inhabitants)
33 Km SE of Imola (69797 inhabitants)
35 Km SW of Ravenna (159116 inhabitants)
46 Km W of Rimini (147750 inhabitants)
66 Km SE of Bologna (386663 inhabitants)
72 Km NE of Firenze (382808 inhabitants)
75 Km N of Arezzo (99543 inhabitants)
77 Km E of Prato (191150 inhabitants)
77 Km NE of Scandicci (50609 inhabitants)
78 Km W of Pesaro (94582 inhabitants)
83 Km SE of Ferrara (133155 inhabitants)
88 Km W of Fano (60888 inhabitants)
89 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 		ML 1.8 2013-03-08
00:41:45		 44.1362 11.9953 38 2015-01-20
11:23:57		 Bollettino Sismico Italiano INGV 5177271
Reviewed
Rev100 		ML 1.8 2013-03-08
00:41:45		 44.1513 12.0032 38 2014-10-21
12:08:56		 Sala Sismica INGV-Roma 3030711
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2013-03-08 00:41:45 ± 0.15
Latitude 44.1362 ± 0.0153
Longitude 11.9953 ± 0.0125
Depth (km) 38 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 5177271

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1627
Semi-minor axis of confidence ellipse (meter) 977
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 348
Circular confidence region, given by single value of horizontal uncertainty (meter) 1630.0
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 24
Number of defining phases 24
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.33
Epicentral distance of station closest to the epicenter (degree) 0.18616
Epicentral distance of station farthest from the epicenter (degree) 1.36247
Number of stations at which the event was observed 18
Number of stations from which data was used for origin computation 18
Magnitudes information

ML:1.8

Field Value
Value 1.8
Uncertainty 0.2
Num. used stations 9
Type of magnitude ML
Reference to an origin 5177271
Agency INGV
Autore Manually reviewed by Franco Mele
Time of creation (UTC) 2015-01-15 13:26:45

ML:1.8

Field Value
Value 1.8
Uncertainty 0.2
Num. used stations 9
Type of magnitude ML
Reference to an origin 3030711
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2013-03-08 00:48:01
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.PIEI.HHZ. 2013-03-08T00:42:10.60 0.6 undecidable manual S 147 79.365 54 0.39 47
IV.CSP1.EHZ. 2013-03-08T00:42:08.80 1.0 undecidable manual P 140 151.2375 54 -0.05 22
IV.PE3.EHZ. 2013-03-08T00:42:07.70 0.6 undecidable manual S 140 63.1923 54 1 38
IV.RUFI.EHZ. 2013-03-08T00:42:04.40 0.6 undecidable manual S 230 51.0156 54 0.32 51
IV.ASQU.HHZ. 2013-03-08T00:42:02.30 0.6 undecidable manual S 204 41.1255 129 0.35 51
IV.BLLA.EHE. 2013-03-08T00:42:02.10 0.6 undecidable manual S 89 37.8288 132 0.81 43
IV.CAFI.HHZ. 2013-03-08T00:42:01.02 0.3 undecidable manual P 182 89.5437 54 -0.16 73
IV.ATBU.EHZ. 2013-03-08T00:42:00.72 0.3 undecidable manual P 149 85.6476 54 0.04 75
IV.MTCR.EHZ. 2013-03-08T00:42:00.72 0.3 undecidable manual P 262 80.0643 54 0.73 64
IV.ATPI.EHZ. 2013-03-08T00:42:00.74 0.3 undecidable manual P 157 82.7505 54 0.41 70
IV.PIEI.HHZ. 2013-03-08T00:41:59.28 0.3 undecidable manual P 147 79.365 54 -0.63 66
IV.ATMC.EHZ. 2013-03-08T00:41:59.98 0.3 undecidable manual P 168 78.0663 54 0.23 73
IV.FSSB.HHZ. 2013-03-08T00:41:59.34 0.3 undecidable manual P 128 79.4649 54 -0.58 67
IV.BRIS.HHZ. 2013-03-08T00:41:58.70 0.3 undecidable manual S 298 20.6682 149 0.35 79
IV.SSP9.EHZ. 2013-03-08T00:41:57.93 0.3 undecidable manual P 170 63.2922 54 0.02 79
IV.PE3.EHZ. 2013-03-08T00:41:57.68 0.3 undecidable manual P 140 63.1923 54 -0.21 76
IV.SEI.HHZ. 2013-03-08T00:41:56.48 0.3 undecidable manual P 260 51.5151 54 0.04 81
IV.PARC.HHE. 2013-03-08T00:41:56.87 0.3 undecidable manual P 160 57.498 54 -0.31 75
IV.RUFI.EHZ. 2013-03-08T00:41:55.93 0.3 undecidable manual P 230 51.0156 54 -0.44 73
IV.RSM2.HHE. 2013-03-08T00:41:55.10 0.3 undecidable manual P 121 42.1245 128 -0.16 80
IV.IMOL.EHE. 2013-03-08T00:41:54.24 0.3 undecidable manual P 321 31.9458 137 0.13 82
IV.ASQU.HHZ. 2013-03-08T00:41:54.70 0.1 undecidable manual P 204 41.1255 129 -0.44 100
IV.BLLA.EHE. 2013-03-08T00:41:54.72 0.3 undecidable manual P 89 37.8288 132 -0.04 83
IV.BRIS.HHZ. 2013-03-08T00:41:52.56 0.3 undecidable manual P 298 20.6682 149 -0.5 76
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.ASQU.HHN. ML:1.7 0.000126 0.52 AML other m 2013-03-08T00:42:02.86
IV.ASQU.HHE. ML:1.6 0.00009515 0.22 AML other m 2013-03-08T00:42:03.55
IV.ATBU.EHE. ML:1.9 0.00009145 1.1 AML other m 2013-03-08T00:42:16.58
IV.ATBU.EHN. ML:2.0 0.00009765 1.58 AML other m 2013-03-08T00:42:16.22
IV.ATMC.EHN. ML:1.9 0.00009165 0.7 AML other m 2013-03-08T00:42:14.00
IV.ATMC.EHE. ML:1.6 0.000052249999999999996 1.56 AML other m 2013-03-08T00:42:13.39
IV.ATPI.EHE. ML:1.4 0.000030669999999999996 0.32 AML other m 2013-03-08T00:42:16.58
IV.ATPI.EHN. ML:1.5 0.00003880250000000001 1.58 AML other m 2013-03-08T00:42:24.56
IV.CAFI.HHN. ML:1.6 0.0000447 1.58 AML other m 2013-03-08T00:42:15.18
IV.CAFI.HHE. ML:1.6 0.000047 1.52 AML other m 2013-03-08T00:42:14.43
IV.FSSB.HHN. ML:2.1 0.0001595 0.22 AML other m 2013-03-08T00:42:12.66
IV.FSSB.HHE. ML:1.9 0.00009800000000000001 1.14 AML other m 2013-03-08T00:42:12.76
IV.PE3.EHN. ML:2.4 0.0004 0.38 AML other m 2013-03-08T00:42:08.39
IV.PE3.EHE. ML:2.1 0.0002185 0.42 AML other m 2013-03-08T00:42:08.19
IV.PIEI.HHE. ML:1.9 0.0000995 0.98 AML other m 2013-03-08T00:42:12.34
IV.PIEI.HHN. ML:1.7 0.0000634 0.32 AML other m 2013-03-08T00:42:12.68
IV.SEI.HHN. ML:1.9 0.000154 0.4 AML other m 2013-03-08T00:42:08.16
IV.SEI.HHE. ML:1.7 0.0000877 0.32 AML other m 2013-03-08T00:42:09.25
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