Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 2.1 on date 16-08-2016 and time 12:46:54 (UTC) in region 3 km SW Meldola (FC)

A magnitude ML 2.1 earthquake occured in region: 3 km SW Meldola (FC), on

  • 16-08-2016 12:46:54 (UTC)
  • 16-08-2016 14:46:54 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 44.1000, 12.0490 at 30 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.

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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 3 9970 9970
Predappio FC 5 6346 16316
Bertinoro FC 9 11059 27375
Forlimpopoli FC 12 13290 40665
Castrocaro Terme e Terra del Sole FC 12 6426 47091
Dovadola FC 13 1653 48744
Civitella di Romagna FC 14 3786 52530
Forlì FC 14 117913 170443
Galeata FC 16 2516 172959
Cesena FC 16 96758 269717
Rocca San Casciano FC 17 1910 271627
Mercato Saraceno FC 20 6886 278513

Municipalities with at least 50000 inhabitants

An earthquake occurred to
14 Km S of Forlì (117913 inhabitants)
16 Km W of Cesena (96758 inhabitants)
25 Km SE of Faenza (58541 inhabitants)
37 Km SW of Ravenna (159116 inhabitants)
39 Km SE of Imola (69797 inhabitants)
42 Km W of Rimini (147750 inhabitants)
71 Km SE of Bologna (386663 inhabitants)
72 Km N of Arezzo (99543 inhabitants)
72 Km W of Pesaro (94582 inhabitants)
73 Km NE of Firenze (382808 inhabitants)
79 Km E of Scandicci (50609 inhabitants)
80 Km E of Prato (191150 inhabitants)
83 Km W of Fano (60888 inhabitants)
89 Km SE of Ferrara (133155 inhabitants)
92 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 2.1 2016-08-16
12:46:54		 44.1003 12.0488 30 2016-11-08
11:54:01		 Bollettino Sismico Italiano INGV 29368511
Reviewed
Rev100 		ML 2.0 2016-08-16
12:46:54		 44.1202 12.0637 29 2016-08-16
13:09:04		 Sala Sismica INGV-Roma 26849601
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2016-08-16 12:46:54 ± 0.29
Latitude 44.1003 ± 0.0108
Longitude 12.0488 ± 0.0138
Depth (km) 30 ± 3 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 29368511

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1208
Semi-minor axis of confidence ellipse (meter) 725
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 217
Circular confidence region, given by single value of horizontal uncertainty (meter) 1210.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 191
Number of associated phases, regardless of their use for origin computation 34
Number of defining phases 22
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.37
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.88134
Number of stations at which the event was observed 25
Number of stations from which data was used for origin computation 13
Magnitudes information

ML:2.0

Field Value
Value 2.0
Uncertainty 0.1
Num. used stations 2
Type of magnitude ML
Reference to an origin 26849601
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2016-08-16 13:09:04

ML:2.1

Field Value
Value 2.1
Uncertainty 0.2
Num. used stations 3
Type of magnitude ML
Reference to an origin 29368511
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2016-10-24 10:37:59
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.VBKN.HHZ. 2016-08-16T12:48:25.99 3.0 undecidable manual Sn 2.27 0
IV.SPS2.HHZ. 2016-08-16T12:48:23.56 3.0 undecidable manual Pg 13.18 0
IV.PTRJ.HHZ. 2016-08-16T12:48:20.99 3.0 undecidable manual Sg 7.84 0
IV.CELI.HHZ. 2016-08-16T12:48:13.23 3.0 negative manual Pn 3.17 0
IV.VAGA.HHZ. 2016-08-16T12:48:07.99 3.0 undecidable manual Sn -1.14 0
IV.VVLD.HHZ. 2016-08-16T12:48:00.99 3.0 undecidable manual Sg 6.6 0
IV.VIVA.HHZ. 2016-08-16T12:47:53.99 3.0 undecidable manual Sn 0.94 0
GU.ENR.HHZ. 2016-08-16T12:47:47.88 3.0 undecidable manual Pn 1.41 0
GU.PCP.HHZ. 2016-08-16T12:47:41.31 3.0 undecidable manual Pn 5.15 0
IV.LIK.EHZ.01 2016-08-16T12:47:37.41 3.0 negative manual Pg 7.21 0
IV.EUCT.HNZ. 2016-08-16T12:47:36.26 3.0 positive manual Pn 2.24 0
IV.LATB.EHZ. 2016-08-16T12:47:36.77 3.0 undecidable manual Pg 8 0
IV.PIEI.HHZ. 2016-08-16T12:47:18.53 0.6 undecidable manual S 148 73.7706 107 0.87 36
IV.NARO.HHZ. 2016-08-16T12:47:17.07 0.6 undecidable manual S 142 68.9754 108 0.62 40
IV.CRE.HHZ. 2016-08-16T12:47:13.46 0.6 undecidable manual S 188 54.0015 114 0.76 38
IV.RUFI.EHZ. 2016-08-16T12:47:12.61 0.6 undecidable manual S 236 52.0035 114 0.4 45
IV.PARC.HHZ. 2016-08-16T12:47:12.49 0.6 undecidable manual S 163 52.4031 114 0.18 46
IV.ARVD.HHZ. 2016-08-16T12:47:11.76 0.3 undecidable manual P 133 97.8243 102 0.18 67
IV.ASQU.HHZ. 2016-08-16T12:47:09.01 0.6 undecidable manual S 212 39.5271 122 -0.27 50
IV.PIEI.HHZ. 2016-08-16T12:47:07.47 0.3 undecidable manual P 148 73.7706 107 -0.52 63
IV.MTRZ.HNN. 2016-08-16T12:47:06.81 0.6 undecidable manual P 296 54.9006 113 1.55 29
IV.SFI.EHZ. 2016-08-16T12:47:06.17 0.3 undecidable manual S 217 27.0507 134 -0.46 74
IV.BRIS.HHZ. 2016-08-16T12:47:06.90 0.3 undecidable manual S 302 26.3514 134 0.4 71
IV.LMD.HHZ. 2016-08-16T12:47:06.52 0.3 undecidable manual S 265 27.3504 133 -0.17 76
IV.NARO.HHZ. 2016-08-16T12:47:06.95 0.3 undecidable manual P 142 68.9754 108 -0.34 67
IV.SEI.HHZ. 2016-08-16T12:47:05.64 0.3 undecidable manual P 265 55.2003 113 0.34 70
IV.RUFI.EHZ. 2016-08-16T12:47:04.94 0.1 undecidable manual P 236 52.0035 114 0.1 98
IV.CRE.HHZ. 2016-08-16T12:47:04.96 0.1 undecidable manual P 188 54.0015 114 -0.16 96
IV.PARC.HHZ. 2016-08-16T12:47:04.39 0.1 undecidable manual P 163 52.4031 114 -0.5 89
IV.CPGN.EHZ. 2016-08-16T12:47:03.41 0.3 undecidable manual P 147 39.627 122 0.25 72
IV.ASQU.HHZ. 2016-08-16T12:47:03.03 0.1 undecidable manual P 212 39.5271 122 -0.12 99
IV.BRIS.HHZ. 2016-08-16T12:47:01.44 0.1 undecidable manual P 302 26.3514 134 -0.1 100
IV.LMD.HHZ. 2016-08-16T12:47:01.40 0.1 positive manual P 265 27.3504 133 -0.25 98
IV.SFI.EHZ. 2016-08-16T12:47:01.29 0.1 undecidable manual P 217 27.0507 134 -0.33 97
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.ASQU.HHN. ML:1.8 0.0001815 0.22 AML other m 2016-08-16T12:47:09.95
IV.ASQU.HHE. ML:2.0 0.0002605 0.32 AML other m 2016-08-16T12:47:09.93
IV.LMD.HHE. ML:2.2 0.0006174999999999999 0.22 AML other m 2016-08-16T12:47:06.88
IV.LMD.HHN. ML:2.4 0.0009094999999999999 0.28 AML other m 2016-08-16T12:47:06.89
IV.SFI.EHE. ML:1.9 0.0003105 0.28 AML other m 2016-08-16T12:47:06.69
IV.SFI.EHN. ML:2.1 0.00044050000000000003 0.34 AML other m 2016-08-16T12:47:06.92
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
Waveforms Seismic signals in miniseed + resp format Download