Earthquake with magnitude of ML 1.9 on date 31-10-2019 and time 09:50:42 (Italy) in region 4 km SE Romagnese (PV)

A magnitude ML 1.9 earthquake occured in region: 4 km SE Romagnese (PV), on

  • 31-10-2019 08:50:42 (UTC)
  • 31-10-2019 09:50:42 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 44.8060, 9.3490 at 47 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
Romagnese PV 4 687 687
Bobbio PC 5 3577 4264
Menconico PV 6 360 4624
Pecorara PC 8 730 5354
Coli PC 9 879 6233
Brallo di Pregola PV 9 599 6832
Santa Margherita di Staffora PV 9 473 7305
Zavattarello PV 10 991 8296
Corte Brugnatella PC 11 586 8882
Valverde PV 11 287 9169
Nibbiano PC 11 2177 11346
Caminata PC 12 252 11598
Varzi PV 12 3279 14877
Cerignale PC 14 127 15004
Ruino PV 15 723 15727
Fabbrica Curone AL 16 656 16383
Zerba PC 16 77 16460
Val di Nizza PV 17 624 17084
Pianello Val Tidone PC 17 2202 19286
Travo PC 17 2087 21373
Canevino PV 17 109 21482
Volpara PV 17 134 21616
Piozzano PC 18 641 22257
Golferenzo PV 18 190 22447
Bagnaria PV 18 658 23105
Fortunago PV 18 390 23495
Borgoratto Mormorolo PV 19 432 23927
Montecalvo Versiggia PV 19 521 24448
Gremiasco AL 19 324 24772
Montacuto AL 20 278 25050
Rocca de' Giorgi PV 20 87 25137

Municipalities with at least 50000 inhabitants

An earthquake occurred to
39 Km SW of Piacenza (102191 inhabitants)
45 Km SE of Pavia (72576 inhabitants)
55 Km NE of Genova (586655 inhabitants)
59 Km E of Alessandria (93943 inhabitants)
65 Km SW of Cremona (71901 inhabitants)
69 Km SE of Vigevano (63310 inhabitants)
75 Km S of Milano (1345851 inhabitants)
77 Km W of Parma (192836 inhabitants)
81 Km S of Sesto San Giovanni (81608 inhabitants)
84 Km SE of Rho (50434 inhabitants)
84 Km S of Cinisello Balsamo (75078 inhabitants)
87 Km NW of La Spezia (93959 inhabitants)
87 Km S of Monza (122671 inhabitants)
88 Km NE of Savona (61345 inhabitants)
91 Km E of Asti (76202 inhabitants)
91 Km SE of Novara (104380 inhabitants)
94 Km SE of Legnano (60262 inhabitants)
98 Km SE of Busto Arsizio (83106 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 2019-10-31
08:50:42
44.8063 9.3493 47 2020-02-28
16:42:14
Bollettino Sismico Italiano INGV 74702471
Reviewed
Rev100
ML 2.0 2019-10-31
08:50:42
44.8048 9.349 47 2019-10-31
09:01:41
Sala Sismica INGV-Roma 73548931
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-10-31 08:50:42 ± 0.13
Latitude 44.8063 ± 0.0099
Longitude 9.3493 ± 0.0114
Depth (km) 47 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 74702471

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1060
Semi-minor axis of confidence ellipse (meter) 282
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 173
Circular confidence region, given by single value of horizontal uncertainty (meter) 1060.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 70
Number of associated phases, regardless of their use for origin computation 32
Number of defining phases 32
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.36
Epicentral distance of station closest to the epicenter (degree) 0.08004
Epicentral distance of station farthest from the epicenter (degree) 1.49108
Number of stations at which the event was observed 19
Number of stations from which data was used for origin computation 19
Magnitudes information

ML:1.9

Field Value
Value 1.9
Uncertainty 0.2
Num. used stations 22
Type of magnitude ML
Reference to an origin 74702471
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2019-12-18 13:12:49

ML:2.0

Field Value
Value 2.0
Uncertainty 0.2
Num. used stations 24
Type of magnitude ML
Reference to an origin 73548931
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-10-31 09:01:41
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.IMI.HHN. 2019-10-31T08:51:22.56 0.6 undecidable manual S 230 152.3364 95 -0.14 41
GU.RORO.HHE. 2019-10-31T08:51:17.10 0.6 undecidable manual S 233 127.4724 96 -0.26 42
GU.SARM.EHN. 2019-10-31T08:51:14.38 0.6 undecidable manual S 129 108.114 98 1.16 30
GU.CANO.HHZ. 2019-10-31T08:51:13.63 0.6 undecidable manual S 233 110.2119 98 -0.04 45
GU.EQUI.HHN. 2019-10-31T08:51:10.52 0.6 undecidable manual S 138 95.3379 100 0.02 46
IV.PLMA.HHZ. 2019-10-31T08:51:09.81 0.6 undecidable manual S 154 92.9403 100 -0.18 47
IV.MABI.HHZ. 2019-10-31T08:51:08.34 0.3 undecidable manual P 33 165.5121 94 0.98 46
GU.TRAV.HHZ. 2019-10-31T08:51:06.10 0.3 undecidable manual P 303 147.8409 95 0.94 50
GU.PCP.HHZ. 2019-10-31T08:51:05.77 0.6 undecidable manual S 245 69.8745 107 0.61 42
IV.IMI.HHN. 2019-10-31T08:51:05.07 0.1 undecidable manual P 230 152.3364 95 -0.66 71
GU.GRAM.HHZ. 2019-10-31T08:51:04.67 0.6 undecidable manual S 121 66.4779 109 0.21 47
IV.BDI.HHZ. 2019-10-31T08:51:03.24 0.3 undecidable manual P 129 128.6712 96 0.45 59
IV.MSSA.HHZ. 2019-10-31T08:51:02.41 0.3 undecidable manual S 166 55.9995 115 0.06 73
GU.RNCA.HHZ. 2019-10-31T08:51:01.79 0.6 undecidable manual S 220 48.7179 120 0.83 39
GU.RORO.HHE. 2019-10-31T08:51:01.74 0.6 undecidable manual P 233 127.4724 96 -0.9 34
CH.MUGIO.HHN. 2019-10-31T08:51:01.20 0.6 undecidable manual P 349 126.0738 96 -1.27 26
MN.VLC.HHZ. 2019-10-31T08:51:00.48 0.3 undecidable manual P 131 109.0131 98 0.11 66
IV.MDI.HHZ. 2019-10-31T08:51:00.48 0.6 undecidable manual P 15 110.6004 98 -0.08 43
GU.SARM.EHN. 2019-10-31T08:51:00.44 0.1 undecidable manual P 129 108.114 98 0.19 88
GU.CANO.HHZ. 2019-10-31T08:51:00.11 0.3 undecidable manual P 233 110.2119 98 -0.41 63
IV.PCN.EHE. 2019-10-31T08:50:59.80 1.0 undecidable manual S 49 38.9277 129 0.58 24
GU.EQUI.HHN. 2019-10-31T08:50:58.64 0.1 undecidable manual P 138 95.3379 100 -0.04 93
IV.PLMA.HHZ. 2019-10-31T08:50:57.96 0.1 undecidable manual P 154 92.9403 100 -0.43 87
GU.GORR.HHZ. 2019-10-31T08:50:56.84 0.6 undecidable manual S 191 22.5552 148 -0.02 53
GU.PCP.HHZ. 2019-10-31T08:50:56.03 0.1 undecidable manual P 245 69.8745 107 0.43 90
IV.BOB.HHZ. 2019-10-31T08:50:55.94 0.6 undecidable manual S 119 8.88 167 0.23 52
GU.GRAM.HHZ. 2019-10-31T08:50:54.87 0.3 undecidable manual P 121 66.4779 109 -0.32 69
GU.RNCA.HHZ. 2019-10-31T08:50:53.36 0.1 undecidable manual P 220 48.7179 120 0.19 98
IV.MSSA.HHZ. 2019-10-31T08:50:53.77 0.1 negative manual P 166 55.9995 115 -0.21 98
IV.PCN.EHE. 2019-10-31T08:50:51.97 0.3 undecidable manual P 49 38.9277 129 -0.2 73
GU.GORR.HHZ. 2019-10-31T08:50:50.45 0.1 negative manual P 191 22.5552 148 -0.36 100
IV.BOB.HHZ. 2019-10-31T08:50:49.71 0.1 negative manual P 119 8.88 167 -0.43 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.BOB.HHN. ML:2.2 0.0005276761 0.2816 AML other m 2019-10-31T08:50:56.26
IV.BOB.HNN. ML:2.2 0.0005232536 0.2816 AML other m 2019-10-31T08:50:56.26
IV.BOB.HHE. ML:2.1 0.00037608534999999997 0.1792 AML other m 2019-10-31T08:50:56.40
IV.BOB.HNE. ML:2.1 0.00038626744999999997 0.16 AML other m 2019-10-31T08:50:56.41
GU.GORR.HHE. ML:1.6 0.00010605154999999999 0.1984 AML other m 2019-10-31T08:50:57.19
GU.GORR.HHN. ML:1.6 0.000104362825 0.224 AML other m 2019-10-31T08:50:59.40
IV.MSSA.HHN. ML:2.0 0.00014626165 1.6608 AML other m 2019-10-31T08:51:03.00
IV.MSSA.HHE. ML:2.1 0.0002005749 0.4608 AML other m 2019-10-31T08:51:03.69
GU.RNCA.HHN. ML:1.8 0.000112990485 0.2624 AML other m 2019-10-31T08:51:04.20
GU.RNCA.HHE. ML:2.0 0.00019202995 0.2048 AML other m 2019-10-31T08:51:04.25
GU.GRAM.HHN. ML:2.2 0.000193719 0.2624 AML other m 2019-10-31T08:51:05.78
GU.GRAM.HHE. ML:2.2 0.0002404464 0.3584 AML other m 2019-10-31T08:51:06.12
GU.PCP.HHE. ML:1.7 0.0000618 1.58 AML other m 2019-10-31T08:51:07.19
GU.PCP.HHN. ML:1.6 0.00004929972 1.6352 AML other m 2019-10-31T08:51:07.87
IV.PLMA.HHN. ML:1.8 0.00006739987999999999 0.2048 AML other m 2019-10-31T08:51:10.76
IV.PLMA.HHE. ML:1.9 0.000067679835 0.3008 AML other m 2019-10-31T08:51:10.68
GU.CANO.HHE. ML:2.1 0.00008301459 1.6992 AML other m 2019-10-31T08:51:17.03
GU.CANO.HHN. ML:1.9 0.00006328126000000001 0.2624 AML other m 2019-10-31T08:51:17.22
IV.BDI.HHN. ML:2.0 0.0000674 0.58 AML other m 2019-10-31T08:51:20.47
IV.BDI.HHE. ML:1.9 0.00004565 1 AML other m 2019-10-31T08:51:20.62
GU.TRAV.HHN. ML:1.7 0.000022795505 0.2432 AML other m 2019-10-31T08:51:26.49
GU.TRAV.HHE. ML:1.6 0.00002182237 0.1216 AML other m 2019-10-31T08:51:30.19
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
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Type Description Link
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