Earthquake with magnitude of ML 1.9 on date 16-02-2018 and time 20:18:46 (Italy) in region 7 km NW Pontremoli (MS)

A magnitude ML 1.9 earthquake occured in region: 7 km NW Pontremoli (MS), on

  • 16-02-2018 19:18:46 (UTC)
  • 16-02-2018 20:18:46 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 44.4320, 9.8450 at 9 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
Pontremoli MS 7 7357 7357
Borgo Val di Taro PR 9 6999 14356
Zeri MS 11 1094 15450
Albareto PR 12 2156 17606
Mulazzo MS 13 2424 20030
Filattiera MS 13 2309 22339
Berceto PR 15 2109 24448
Valmozzola PR 16 539 24987
Compiano PR 16 1112 26099
Bagnone MS 18 1887 27986
Villafranca in Lunigiana MS 18 4770 32756
Tornolo PR 18 1010 33766
Bedonia PR 19 3482 37248
Zignago SP 19 532 37780

Municipalities with at least 50000 inhabitants

An earthquake occurred to
36 Km N of La Spezia (93959 inhabitants)
44 Km NW of Carrara (63133 inhabitants)
50 Km NW of Massa (69479 inhabitants)
56 Km SW of Parma (192836 inhabitants)
69 Km W of Reggio nell'Emilia (171345 inhabitants)
70 Km S of Piacenza (102191 inhabitants)
71 Km NW of Viareggio (62467 inhabitants)
72 Km E of Genova (586655 inhabitants)
79 Km S of Cremona (71901 inhabitants)
84 Km NW of Lucca (89046 inhabitants)
89 Km W of Modena (184973 inhabitants)
91 Km W of Carpi (70699 inhabitants)
91 Km NW of Pisa (89158 inhabitants)
100 Km SE of Pavia (72576 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 1.9 2018-02-16
19:18:46
44.4325 9.8447 9 2019-04-24
14:49:24
Bollettino Sismico Italiano INGV 55279001
Reviewed
Rev100
ML 2.0 2018-02-16
19:18:46
44.4302 9.8488 9 2018-02-16
19:42:43
Sala Sismica INGV-Roma 53950481
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2018-02-16 19:18:46 ± 0.09
Latitude 44.4325 ± 0.0054
Longitude 9.8447 ± 0.0050
Depth (km) 9 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 55279001

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 440
Semi-minor axis of confidence ellipse (meter) 414
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 20
Circular confidence region, given by single value of horizontal uncertainty (meter) 440.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 110
Number of associated phases, regardless of their use for origin computation 37
Number of defining phases 26
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.27
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 1.31211
Number of stations at which the event was observed 29
Number of stations from which data was used for origin computation 19
Magnitudes information

ML:1.9

Field Value
Value 1.9
Uncertainty 0.3
Num. used stations 42
Type of magnitude ML
Reference to an origin 55279001
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2018-04-09 10:47:03

ML:2.0

Field Value
Value 2.0
Uncertainty 0.3
Num. used stations 56
Type of magnitude ML
Reference to an origin 53950481
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2018-02-16 19:42:43
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.PP3.EHZ. 2018-02-16T19:20:24.30 3.0 undecidable manual Sg 10.94 0
IV.FAGN.HHZ. 2018-02-16T19:20:23.78 3.0 undecidable manual Sn -2.68 0
CR.ZAG.BHZ. 2018-02-16T19:20:10.98 3.0 undecidable manual Pg 12.22 0
IV.VIVA.HHZ. 2018-02-16T19:19:46.82 3.0 positive manual Pg 4.94 0
IV.LRP.EHZ. 2018-02-16T19:19:44.07 3.0 negative manual Pn -4.5 0
IV.T1299.EHZ. 2018-02-16T19:19:39.46 3.0 undecidable manual Pn 2.03 0
IV.PP3.EHZ. 2018-02-16T19:19:39.72 3.0 negative manual Pg 4.17 0
IV.TRTR.HHZ. 2018-02-16T19:19:38.96 3.0 undecidable manual Pn -2.65 0
SI.LUSI.HHZ. 2018-02-16T19:19:17.48 3.0 positive manual Pn -2.03 0
IV.CASP.HHZ. 2018-02-16T19:19:17.82 3.0 undecidable manual Pn -1.31 0
IV.FIU.EHZ. 2018-02-16T19:19:14.69 3.0 undecidable manual P 2.28 0
IV.MAGO.HHZ. 2018-02-16T19:19:10.43 0.3 undecidable manual P 153 144.1446 50 0.11 58
GU.RORO.HHZ. 2018-02-16T19:19:10.16 0.3 undecidable manual P 256 145.6431 50 -0.4 54
GU.CANO.HHZ. 2018-02-16T19:19:08.30 0.3 undecidable manual P 259 129.9699 50 0.15 59
IV.QLNO.HHZ. 2018-02-16T19:19:06.87 0.3 undecidable manual P 265 119.3916 50 0.35 58
IV.GROG.HHZ. 2018-02-16T19:19:05.67 0.3 undecidable manual P 178 111.6993 50 0.35 59
GU.PCP.HHZ. 2018-02-16T19:19:04.50 0.3 undecidable manual P 277 103.5186 50 0.43 59
GU.SARM.EHZ. 2018-02-16T19:19:03.07 0.3 undecidable manual S 122 52.0035 50 -0.19 68
IV.BOB.HNE. 2018-02-16T19:19:02.29 0.1 undecidable manual S 320 48.618 50 -0.06 94
GU.GORR.HHZ. 2018-02-16T19:19:01.76 0.3 undecidable manual S 294 47.7189 50 -0.36 67
GU.POPM.HHZ. 2018-02-16T19:19:01.52 0.3 undecidable manual P 120 84.249 50 0.42 61
GU.MAIM.HHZ. 2018-02-16T19:19:00.02 0.3 undecidable manual P 138 77.1672 50 0.02 68
IV.PLMA.HHZ. 2018-02-16T19:19:00.00 0.3 undecidable manual S 179 42.4242 50 -0.7 60
IV.BDI.HHZ. 2018-02-16T19:18:59.33 0.3 undecidable manual P 124 72.372 50 0.06 68
GU.EQUI.HHZ. 2018-02-16T19:18:59.39 0.1 undecidable manual S 140 38.4282 50 -0.22 93
GU.GSCL.HHZ. 2018-02-16T19:18:58.20 0.3 undecidable manual P 99 59.5959 50 0.9 54
GU.CARD.HHZ. 2018-02-16T19:18:58.72 0.3 undecidable manual P 131 67.8765 50 0.16 67
MN.VLC.HHZ. 2018-02-16T19:18:56.48 0.3 undecidable manual P 125 52.6029 50 0.26 67
IV.MSSA.HHZ. 2018-02-16T19:18:56.88 0.3 undecidable manual S 244 28.9488 107 -0.01 74
GU.SARM.EHZ. 2018-02-16T19:18:56.28 0.1 undecidable manual P 122 52.0035 50 0.15 92
GU.GORR.HHZ. 2018-02-16T19:18:55.33 0.1 undecidable manual P 294 47.7189 50 -0.14 93
IV.BOB.HNE. 2018-02-16T19:18:55.56 0.1 undecidable manual P 320 48.618 50 -0.04 95
IV.PLMA.HHZ. 2018-02-16T19:18:54.50 0.3 positive manual P 179 42.4242 50 -0.15 70
GU.GRAM.HHZ. 2018-02-16T19:18:53.13 0.1 undecidable manual S 70 18.6702 115 -0.42 92
GU.EQUI.HHZ. 2018-02-16T19:18:53.85 0.1 positive manual P 140 38.4282 50 -0.17 94
IV.MSSA.HHZ. 2018-02-16T19:18:52.53 0.1 positive manual P 244 28.9488 107 0.08 97
GU.GRAM.HHZ. 2018-02-16T19:18:50.49 0.1 positive manual P 70 18.6702 115 -0.03 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
GU.GORR.HHN. ML:2.0 0.00031508775 0.4224 AML other m 2018-02-16T19:19:04.66
IV.MSSA.HHE. ML:1.7 0.000240513945 0.1408 AML other m 2018-02-16T19:18:57.11
IV.MSSA.HHN. ML:1.8 0.0003162114 0.1408 AML other m 2018-02-16T19:18:58.34
GU.EQUI.HHN. ML:1.8 0.00022950555 0.2816 AML other m 2018-02-16T19:19:00.35
GU.EQUI.HHE. ML:1.6 0.0001622969 0.1152 AML other m 2018-02-16T19:19:00.40
IV.PLMA.HHE. ML:1.8 0.00019000295 0.1152 AML other m 2018-02-16T19:19:01.08
IV.PLMA.HHN. ML:2.0 0.0003433118 0.0768 AML other m 2018-02-16T19:19:00.85
GU.GORR.HHE. ML:1.9 0.00022337429 0.1664 AML other m 2018-02-16T19:19:02.30
GU.SARM.EHN. ML:2.0 0.00028076195000000003 0.2432 AML other m 2018-02-16T19:19:04.37
GU.SARM.EHE. ML:2.0 0.00025989845 0.448 AML other m 2018-02-16T19:19:04.41
MN.VLC.HNN. ML:1.5 0.000085189365 0.1792 AML other m 2018-02-16T19:19:04.51
MN.VLC.HHE. ML:1.5 0.000072100795 0.2688 AML other m 2018-02-16T19:19:04.99
MN.VLC.HHN. ML:1.4 0.000064208145 0.1536 AML other m 2018-02-16T19:19:04.58
MN.VLC.HNE. ML:1.5 0.000074479065 0.2944 AML other m 2018-02-16T19:19:09.54
GU.GSCL.HHN. ML:2.0 0.0002116977 0.2432 AML other m 2018-02-16T19:19:07.36
GU.GSCL.HHE. ML:1.9 0.00015605645 0.2176 AML other m 2018-02-16T19:19:07.70
GU.CARD.HHN. ML:2.3 0.00033108325 0.1664 AML other m 2018-02-16T19:19:12.63
GU.CARD.HHE. ML:2.4 0.00042215445 0.2048 AML other m 2018-02-16T19:19:12.40
IV.BDI.HNN. ML:2.0 0.00017435885000000002 0.704 AML other m 2018-02-16T19:19:03.19
IV.BDI.HHN. ML:2.0 0.0001662138 0.1664 AML other m 2018-02-16T19:19:14.85
IV.BDI.HNE. ML:2.1 0.00018529445 0.2688 AML other m 2018-02-16T19:19:14.71
IV.BDI.HHE. ML:2.0 0.00016393075499999998 0.2176 AML other m 2018-02-16T19:19:13.94
GU.MAIM.HHE. ML:2.1 0.00017336010000000001 0.3072 AML other m 2018-02-16T19:19:13.54
GU.MAIM.HHN. ML:1.9 0.000117558235 0.256 AML other m 2018-02-16T19:19:13.24
GU.POPM.HHN. ML:2.2 0.0002114665 0.2048 AML other m 2018-02-16T19:19:16.46
GU.POPM.HHE. ML:2.3 0.00023893979999999997 0.1792 AML other m 2018-02-16T19:19:19.33
GU.PCP.HHN. ML:1.7 0.000046273179999999995 0.32 AML other m 2018-02-16T19:19:19.92
GU.PCP.HHE. ML:1.6 0.000036096221 0.2304 AML other m 2018-02-16T19:19:20.24
IV.GROG.HHN. ML:1.9 0.000067334355 1.1264 AML other m 2018-02-16T19:19:43.39
IV.GROG.HHE. ML:2.0 0.00009138601 0.2176 AML other m 2018-02-16T19:19:24.65
IV.QLNO.HHE. ML:1.7 0.000034304735000000006 0.3584 AML other m 2018-02-16T19:19:22.71
IV.QLNO.HHN. ML:1.7 0.000037552864999999995 0.3456 AML other m 2018-02-16T19:19:22.82
GU.CANO.HHE. ML:2.3 0.00012974615 0.96 AML other m 2018-02-16T19:19:44.57
GU.CANO.HHN. ML:2.1 0.00007969385 0.384 AML other m 2018-02-16T19:19:28.12
GU.RORO.HHE. ML:1.8 0.000028751215 0.2176 AML other m 2018-02-16T19:19:12.32
GU.RORO.HHN. ML:1.8 0.000028805909999999995 0.1152 AML other m 2018-02-16T19:19:31.51
IV.MAGO.HHE. ML:1.7 0.000025011315 0.512 AML other m 2018-02-16T19:19:33.72
IV.MAGO.HHN. ML:1.7 0.000024416819999999998 1.3056 AML other m 2018-02-16T19:19:55.37
IV.FIU.EHN. ML:2.8 0.00041754485 0.0768 AML other m 2018-02-16T19:20:06.10
IV.FIU.EHE. ML:3.0 0.0007064080500000001 0.1536 AML other m 2018-02-16T19:20:03.76
SI.LUSI.HHN. ML:2.4 0.00009128659000000001 0.2304 AML other m 2018-02-16T19:19:44.87
SI.LUSI.HHE. ML:2.2 0.00004874918 0.4608 AML other m 2018-02-16T19:19:48.25
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
Waveforms Seismic signals in miniseed + resp format Download