Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 2.1 on date 15-05-2018 and time 14:36:15 (Italy) in region 3 km N Bagno a Ripoli (FI)

A magnitude ML 2.1 earthquake occured in region: 3 km N Bagno a Ripoli (FI), on

  • 15-05-2018 12:36:15 (UTC)
  • 15-05-2018 14:36:15 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.7760, 11.3300 at 7 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
Bagno a Ripoli FI 3 25611 25611
Fiesole FI 5 13969 39580
Firenze FI 6 382808 422388
Pontassieve FI 9 20603 442991
Impruneta FI 12 14615 457606
Rignano sull'Arno FI 12 8651 466257
Scandicci FI 12 50609 516866
Sesto Fiorentino FI 12 48958 565824
Rufina FI 14 7346 573170
Pelago FI 14 7660 580830
Vaglia FI 15 5073 585903
Figline e Incisa Valdarno FI 16 23505 609408
Campi Bisenzio FI 16 46166 655574
Calenzano FI 16 17489 673063
San Casciano in Val di Pesa FI 18 17062 690125
Lastra a Signa FI 18 20156 710281
Signa FI 19 19179 729460
Reggello FI 20 16290 745750

Municipalities with at least 50000 inhabitants

An earthquake occurred to
6 Km E of Firenze (382808 inhabitants)
12 Km E of Scandicci (50609 inhabitants)
22 Km SE of Prato (191150 inhabitants)
37 Km E of Pistoia (90315 inhabitants)
51 Km N of Siena (53903 inhabitants)
56 Km NW of Arezzo (99543 inhabitants)
67 Km E of Lucca (89046 inhabitants)
71 Km SW of Imola (69797 inhabitants)
72 Km SW of Faenza (58541 inhabitants)
75 Km E of Pisa (89158 inhabitants)
76 Km SW of Forlì (117913 inhabitants)
80 Km S of Bologna (386663 inhabitants)
83 Km W of Cesena (96758 inhabitants)
86 Km E of Livorno (159219 inhabitants)
87 Km E of Viareggio (62467 inhabitants)
100 Km E of Massa (69479 inhabitants)
100 Km SW of Ravenna (159116 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 2018-05-15
12:36:15		 43.7758 11.3298 7 2019-04-24
14:50:44		 Bollettino Sismico Italiano INGV 57651961
Reviewed
Rev100 		ML 2.2 2018-05-15
12:36:15		 43.7742 11.3208 8 2018-05-15
13:18:51		 Sala Sismica INGV-Roma 56892991
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2018-05-15 12:36:15 ± 0.07
Latitude 43.7758 ± 0.0045
Longitude 11.3298 ± 0.0050
Depth (km) 7 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 57651961

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 456
Semi-minor axis of confidence ellipse (meter) 272
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 19
Circular confidence region, given by single value of horizontal uncertainty (meter) 460.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 75
Number of associated phases, regardless of their use for origin computation 54
Number of defining phases 42
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.34
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.94069
Number of stations at which the event was observed 37
Number of stations from which data was used for origin computation 27
Magnitudes information

ML:2.2

Field Value
Value 2.2
Uncertainty 0.3
Num. used stations 46
Type of magnitude ML
Reference to an origin 56892991
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2018-05-15 12:52:36

ML:2.1

Field Value
Value 2.1
Uncertainty 0.3
Num. used stations 56
Type of magnitude ML
Reference to an origin 57651961
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2019-03-20 15:04:28
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
CH.FUSIO.HHZ. 2018-05-15T12:37:55.37 3.0 undecidable manual Sg 8.82 0
IV.CTI.HHZ. 2018-05-15T12:37:22.96 3.0 undecidable manual Sg 0.89 0
IV.VITU.HHZ. 2018-05-15T12:37:05.34 3.0 undecidable manual Pn -5.06 0
IV.EUCT.HNZ. 2018-05-15T12:37:05.75 3.0 undecidable manual Sn -9.99 0
OX.ZOU2.HHZ. 2018-05-15T12:36:57.56 3.0 negative manual Pg -5.61 0
IV.ASSB.HHZ. 2018-05-15T12:36:55.56 3.0 undecidable manual Sg 0.17 0
IV.VIVA.HHZ. 2018-05-15T12:36:54.64 3.0 positive manual Pg 1.71 0
IV.VVLD.HHZ. 2018-05-15T12:36:53.89 3.0 negative manual Pg -2.58 0
IV.PTCC.HHZ. 2018-05-15T12:36:52.19 3.0 undecidable manual Pn -9.99 0
IV.T1221.EHZ. 2018-05-15T12:36:49.53 3.0 undecidable manual Sn -9.99 0
IV.EUCT.HNZ. 2018-05-15T12:36:41.87 3.0 undecidable manual Pn -9.23 0
IV.PARC.HHZ. 2018-05-15T12:36:39.58 0.6 undecidable manual S 101 74.2701 50 0.43 42
IV.FROS.HHZ. 2018-05-15T12:36:36.18 0.6 undecidable manual S 193 64.2912 50 -0.33 44
GU.EQUI.HHZ. 2018-05-15T12:36:35.28 0.6 undecidable manual P 295 103.4187 50 1.46 25
IV.ATTE.HHZ. 2018-05-15T12:36:34.77 0.3 undecidable manual P 128 104.4177 50 0.8 52
IV.CRE.HHZ. 2018-05-15T12:36:33.43 0.6 undecidable manual S 109 52.8027 50 -0.01 48
IV.T1221.EHZ. 2018-05-15T12:36:33.12 3.0 negative manual Pn -8.13 0
IV.ATPI.EHZ. 2018-05-15T12:36:32.84 0.3 undecidable manual P 112 93.3399 50 0.56 59
MN.VLC.HHZ. 2018-05-15T12:36:32.27 0.6 undecidable manual P 300 86.5467 50 1.05 32
GU.SARM.EHZ. 2018-05-15T12:36:32.06 0.6 undecidable manual P 302 86.9463 50 0.78 36
IV.LMD.HHZ. 2018-05-15T12:36:31.03 0.6 undecidable manual S 42 45.0216 50 -0.33 46
IV.FNVD.HHZ. 2018-05-15T12:36:31.26 0.6 undecidable manual S 339 46.5201 50 -0.5 44
IV.SFI.HNN. 2018-05-15T12:36:30.54 0.6 undecidable manual S 71 43.8228 50 -0.49 44
IV.BADI.EHZ. 2018-05-15T12:36:30.32 0.3 undecidable manual P 112 79.1652 50 0.24 66
IV.PARC.HHZ. 2018-05-15T12:36:29.33 0.3 undecidable manual P 101 74.2701 50 0 69
IV.ZCCA.HHZ. 2018-05-15T12:36:29.98 0.3 undecidable manual P 336 69.7746 50 1.35 43
GU.MAIM.HHZ. 2018-05-15T12:36:29.02 0.6 undecidable manual P 283 68.7756 50 0.53 42
IV.MTCR.EHZ. 2018-05-15T12:36:28.76 0.6 undecidable manual S 317 38.3283 100 -0.62 42
IV.SSP9.EHZ. 2018-05-15T12:36:28.46 0.6 undecidable manual P 109 68.0763 50 0.08 46
IV.ASQU.HHZ. 2018-05-15T12:36:28.57 0.6 undecidable manual S 86 36.8298 100 -0.32 46
IV.CAFI.HHZ. 2018-05-15T12:36:28.86 0.3 undecidable manual P 134 71.1732 50 0 70
IV.FROS.HHZ. 2018-05-15T12:36:27.65 0.3 undecidable manual P 193 64.2912 50 -0.15 69
IV.CSNT.HHZ. 2018-05-15T12:36:27.56 0.3 undecidable manual S 185 33.744 101 -0.26 71
IV.BDI.HHZ. 2018-05-15T12:36:27.99 0.3 undecidable manual P 299 66.7776 50 -0.18 68
IV.CRMI.HHZ. 2018-05-15T12:36:26.20 0.6 undecidable manual S 275 28.1496 103 0.27 48
IV.OSSC.HNZ. 2018-05-15T12:36:26.09 0.6 undecidable manual S 194 28.749 103 -0.05 50
GU.POPM.HHZ. 2018-05-15T12:36:26.09 0.6 undecidable manual P 303 54.7008 50 -0.22 46
IV.MOCL.EHZ. 2018-05-15T12:36:25.92 0.3 undecidable manual S 335 28.0497 103 0.02 75
IV.CRE.HHZ. 2018-05-15T12:36:25.67 0.1 negative manual P 109 52.8027 50 -0.35 90
IV.MPPT.EHZ. 2018-05-15T12:36:25.60 0.1 undecidable manual S 317 27.8499 103 -0.21 97
IV.FNVD.HHZ. 2018-05-15T12:36:24.93 0.1 positive manual P 339 46.5201 50 -0.12 95
IV.SFI.HNN. 2018-05-15T12:36:24.32 0.1 undecidable manual P 71 43.8228 50 -0.31 92
IV.LMD.HHZ. 2018-05-15T12:36:24.56 0.1 positive manual P 42 45.0216 50 -0.27 93
IV.ASQU.HHZ. 2018-05-15T12:36:23.22 0.1 positive manual P 86 36.8298 100 -0.18 96
IV.MTCR.EHZ. 2018-05-15T12:36:23.06 0.3 undecidable manual P 317 38.3283 100 -0.62 64
IV.CSNT.HHZ. 2018-05-15T12:36:22.35 0.1 negative manual P 185 33.744 101 -0.43 91
IV.RUFI.EHZ. 2018-05-15T12:36:22.20 0.1 undecidable manual S 64 15.9729 113 0.31 97
IV.MPPT.EHZ. 2018-05-15T12:36:21.37 0.1 undecidable manual P 317 27.8499 103 -0.25 96
IV.CRMI.HHZ. 2018-05-15T12:36:21.69 0.3 undecidable manual P 275 28.1496 103 0 76
IV.MOCL.EHZ. 2018-05-15T12:36:21.63 0.1 undecidable manual P 335 28.0497 103 -0.04 100
IV.OSSC.HNZ. 2018-05-15T12:36:21.64 0.3 undecidable manual P 194 28.749 103 -0.17 73
IV.RUFI.EHZ. 2018-05-15T12:36:19.75 0.1 undecidable manual P 64 15.9729 113 0.39 95
IV.FIR.HNE. 2018-05-15T12:36:19.22 0.3 undecidable manual S 269 5.994 138 0.23 75
IV.FIR.HNE. 2018-05-15T12:36:18.00 0.1 undecidable manual P 269 5.994 138 0.32 98
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.RUFI.EHE. ML:2.5 0.00333 0.16 AML other m 2018-05-15T12:36:22.35
IV.RUFI.EHN. ML:2.4 0.002645 0.18 AML other m 2018-05-15T12:36:22.27
IV.OSSC.HNN. ML:2.7 0.002775 0.18 AML other m 2018-05-15T12:36:26.55
IV.OSSC.HNE. ML:2.5 0.00183 0.26 AML other m 2018-05-15T12:36:26.50
IV.OSSC.HHE. ML:2.7 0.002835 0.18 AML other m 2018-05-15T12:36:26.46
IV.OSSC.HHN. ML:2.6 0.00185 0.12 AML other m 2018-05-15T12:36:26.70
IV.MPPT.EHN. ML:2.3 0.0010550000000000002 1.06 AML other m 2018-05-15T12:36:26.85
IV.MOCL.EHN. ML:3.1 0.006705 1.68 AML other m 2018-05-15T12:36:26.86
IV.MOCL.EHE. ML:2.6 0.0022750000000000005 0.26 AML other m 2018-05-15T12:36:26.83
IV.MPPT.EHE. ML:2.0 0.0005834999999999999 0.88 AML other m 2018-05-15T12:36:27.45
IV.CRMI.HNN. ML:1.7 0.00027100000000000003 0.52 AML other m 2018-05-15T12:36:27.18
IV.CRMI.HHN. ML:1.7 0.000272 0.52 AML other m 2018-05-15T12:36:27.18
IV.CSNT.HHN. ML:2.5 0.00138 0.24 AML other m 2018-05-15T12:36:28.61
IV.CSNT.HHE. ML:2.5 0.001385 0.18 AML other m 2018-05-15T12:36:28.53
IV.ASQU.HHN. ML:2.2 0.0007109999999999999 1.08 AML other m 2018-05-15T12:36:28.40
IV.ASQU.HHE. ML:2.2 0.000576 0.34 AML other m 2018-05-15T12:36:29.54
IV.MTCR.EHE. ML:2.1 0.00047850000000000003 0.82 AML other m 2018-05-15T12:36:29.23
IV.MTCR.EHN. ML:2.1 0.0005394999999999999 0.76 AML other m 2018-05-15T12:36:30.43
IV.CRMI.HHE. ML:1.7 0.00027749999999999997 0.32 AML other m 2018-05-15T12:36:30.80
IV.CRMI.HNE. ML:1.7 0.0002645 0.3 AML other m 2018-05-15T12:36:30.80
IV.LMD.HHE. ML:2.0 0.0003255 0.84 AML other m 2018-05-15T12:36:31.28
IV.LMD.HHN. ML:2.2 0.00048499999999999997 0.16 AML other m 2018-05-15T12:36:31.75
IV.FNVD.HHE. ML:2.2 0.0004625 1.42 AML other m 2018-05-15T12:36:33.77
IV.FNVD.HHN. ML:2.4 0.000732 1.4 AML other m 2018-05-15T12:36:34.91
IV.CRE.HHE. ML:2.2 0.0003565 0.18 AML other m 2018-05-15T12:36:34.82
IV.CRE.HHN. ML:2.3 0.00046599999999999994 0.2 AML other m 2018-05-15T12:36:36.76
GU.POPM.HHN. ML:2.2 0.0003735 0.22 AML other m 2018-05-15T12:36:36.87
GU.POPM.HHE. ML:2.0 0.00026649999999999997 0.3 AML other m 2018-05-15T12:36:38.42
IV.FROS.HHN. ML:2.3 0.000379 0.56 AML other m 2018-05-15T12:36:38.52
IV.FROS.HHE. ML:2.4 0.000431 0.86 AML other m 2018-05-15T12:36:38.35
IV.BDI.HHE. ML:2.2 0.00027150000000000004 1.34 AML other m 2018-05-15T12:36:39.25
IV.BDI.HNE. ML:2.2 0.0002635 0.56 AML other m 2018-05-15T12:36:39.75
IV.BDI.HNN. ML:2.2 0.000255 1.62 AML other m 2018-05-15T12:36:39.90
IV.PARC.HHN. ML:2.1 0.0002145 1.34 AML other m 2018-05-15T12:36:39.29
IV.BDI.HHN. ML:2.2 0.000259 0.4 AML other m 2018-05-15T12:36:40.10
GU.MAIM.HHN. ML:1.8 0.00010284999999999999 1.04 AML other m 2018-05-15T12:36:42.85
IV.CAFI.HHE. ML:1.7 0.0000818 0.48 AML other m 2018-05-15T12:36:42.34
IV.SSP9.EHE. ML:2.0 0.000192 0.6 AML other m 2018-05-15T12:36:42.58
IV.CAFI.HHN. ML:1.7 0.00008255 1.16 AML other m 2018-05-15T12:36:43.68
GU.MAIM.HHE. ML:1.9 0.000124 0.44 AML other m 2018-05-15T12:36:43.79
IV.SSP9.EHN. ML:2.0 0.0001885 1.18 AML other m 2018-05-15T12:36:44.31
IV.BADI.EHN. ML:2.2 0.000243 0.26 AML other m 2018-05-15T12:36:44.31
IV.BADI.EHE. ML:2.0 0.0001505 0.72 AML other m 2018-05-15T12:36:44.75
MN.VLC.HHE. ML:2.0 0.00011599999999999999 0.42 AML other m 2018-05-15T12:36:44.65
GU.SARM.EHE. ML:2.6 0.000546 0.44 AML other m 2018-05-15T12:36:44.93
IV.ZCCA.HHE. ML:2.1 0.0002 0.42 AML other m 2018-05-15T12:36:44.72
IV.PARC.HHE. ML:2.0 0.0001475 1.26 AML other m 2018-05-15T12:36:45.35
IV.ZCCA.HHN. ML:2.1 0.0001945 0.76 AML other m 2018-05-15T12:36:45.75
MN.VLC.HHN. ML:1.7 0.0000668 0.88 AML other m 2018-05-15T12:36:46.47
GU.SARM.EHN. ML:2.4 0.000277 0.54 AML other m 2018-05-15T12:36:46.60
IV.ATPI.EHE. ML:1.9 0.00008035 0.86 AML other m 2018-05-15T12:36:47.49
IV.ATPI.EHN. ML:2.0 0.00010325 0.46 AML other m 2018-05-15T12:36:48.16
GU.EQUI.HHE. ML:2.0 0.00008350000000000001 0.54 AML other m 2018-05-15T12:36:49.30
IV.ATTE.HHN. ML:1.9 0.00008094999999999999 1.62 AML other m 2018-05-15T12:36:53.84
GU.EQUI.HHN. ML:2.0 0.0000835 0.48 AML other m 2018-05-15T12:36:53.24
IV.ATTE.HHE. ML:1.8 0.00006494999999999999 1.1 AML other m 2018-05-15T12:36:54.18
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