Earthquake with magnitude of ML 1.9 on date 19-10-2021 and time 09:18:28 (Italy) in region 2 km N Momperone (AL)

A magnitude ML 1.9 earthquake occured in region: 2 km N Momperone (AL), on

  • 19-10-2021 07:18:28 (UTC)
  • 19-10-2021 09:18:28 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 44.854, 9.039 at 19 km depth.

The earthquake was located by: Sala Sismica INGV-Roma.

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
Momperone AL 2 223 223
Pozzol Groppo AL 3 328 551
Cecima PV 4 236 787
Montemarzino AL 4 341 1128
Casasco AL 4 129 1257
Brignano-Frascata AL 5 456 1713
Ponte Nizza PV 5 807 2520
Godiasco Salice Terme PV 5 3229 5749
Monleale AL 6 566 6315
Volpedo AL 6 1227 7542
Montegioco AL 7 313 7855
Bagnaria PV 7 658 8513
Berzano di Tortona AL 7 157 8670
Volpeglino AL 8 148 8818
San Sebastiano Curone AL 8 583 9401
Rocca Susella PV 8 225 9626
Avolasca AL 8 294 9920
Casalnoceto AL 8 980 10900
Gremiasco AL 8 324 11224
Cerreto Grue AL 9 323 11547
Garbagna AL 9 696 12243
Rivanazzano Terme PV 9 5312 17555
Montesegale PV 9 298 17853
Castellar Guidobono AL 9 399 18252
Costa Vescovato AL 9 335 18587
Dernice AL 10 185 18772
Sarezzano AL 10 1171 19943
Castellania AL 10 90 20033
Val di Nizza PV 11 624 20657
Retorbido PV 11 1538 22195
Viguzzolo AL 11 3148 25343
Montacuto AL 11 278 25621
Villaromagnano AL 12 715 26336
Sant'Agata Fossili AL 12 425 26761
Carezzano AL 12 431 27192
Paderna AL 12 220 27412
Codevilla PV 12 997 28409
Varzi PV 13 3279 31688
Spineto Scrivia AL 13 337 32025
Carbonara Scrivia AL 13 1122 33147
Fortunago PV 14 390 33537
Torrazza Coste PV 14 1680 35217
Pontecurone AL 14 3723 38940
Fabbrica Curone AL 14 656 39596
Gavazzana AL 15 180 39776
Tortona AL 15 27437 67213
Villalvernia AL 15 955 68168
Borgoratto Mormorolo PV 15 432 68600
Cantalupo Ligure AL 15 527 69127
Sardigliano AL 15 406 69533
Borgo Priolo PV 15 1474 71007
Borghetto di Borbera AL 15 1966 72973
Valverde PV 15 287 73260
Voghera PV 16 39421 112681
Rocchetta Ligure AL 16 200 112881
Cassano Spinola AL 17 1731 114612
Montebello della Battaglia PV 17 1628 116240
Albera Ligure AL 17 325 116565
Calvignano PV 18 122 116687
Zavattarello PV 18 991 117678
Grondona AL 18 510 118188
Santa Margherita di Staffora PV 18 473 118661
Castelnuovo Scrivia AL 19 5274 123935
Casteggio PV 19 6805 130740
Casei Gerola PV 19 2500 133240
Montalto Pavese PV 19 890 134130
Stazzano AL 19 2486 136616
Roccaforte Ligure AL 20 136 136752
Vignole Borbera AL 20 2182 138934
Oliva Gessi PV 20 176 139110

Municipalities with at least 50000 inhabitants

An earthquake occurred to
34 Km E of Alessandria (93943 inhabitants)
38 Km S of Pavia (72576 inhabitants)
50 Km N of Genova (586655 inhabitants)
54 Km S of Vigevano (63310 inhabitants)
56 Km W of Piacenza (102191 inhabitants)
66 Km E of Asti (76202 inhabitants)
69 Km S of Milano (1345851 inhabitants)
74 Km SE of Novara (104380 inhabitants)
75 Km NE of Savona (61345 inhabitants)
75 Km S of Rho (50434 inhabitants)
77 Km S of Sesto San Giovanni (81608 inhabitants)
80 Km S of Cinisello Balsamo (75078 inhabitants)
83 Km S of Legnano (60262 inhabitants)
83 Km S of Monza (122671 inhabitants)
84 Km W of Cremona (71901 inhabitants)
86 Km S of Busto Arsizio (83106 inhabitants)
92 Km S of Gallarate (53343 inhabitants)
Recent and historical seismicity
Seismic hazard
Shakemap
Felt maps
Preliminary map of the earthquake effects from the web questionnaire

Preliminary map of the earthquake effects from the web questionnaire

This map shows the distribution of earthquake resentment in the area, expressed in terms of intensity on the MCS scale (Mercalli-Cancani-Sieberg). Intensities are determined using data from questionnaires collected on the website http://www.hsit.it. The intensities shown are determined considering all the reports received from each municipality, and are all the more reliable the greater the number of questionnaires. The collected data are subjected to an automatic statistical filter, but are not checked individually. In particular, intensities greater than or equal to the VI degree of the MCS or EMS scale require on-site verification by specialized personnel. The black star is the epicenter of the earthquake that occurred. This map is updated every time citizens fill out new questionnaires. The number of questionnaires processed to obtain this map, the date and time of the last update are shown at the top right.
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
Reviewed
Rev100
ML 1.9 2021-10-19
07:18:28
44.8542 9.0392 19 2021-10-19
07:30:59
Sala Sismica INGV-Roma 96754791
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-10-19 07:18:28 ± 0.08
Latitude 44.8542 ± 0.0045
Longitude 9.0392 ± 0.0063
Depth (km) 19 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 96754791

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 535
Semi-minor axis of confidence ellipse (meter) 127
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 53
Circular confidence region, given by single value of horizontal uncertainty (meter) 530
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 106
Number of associated phases, regardless of their use for origin computation 24
Number of defining phases 21
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.21
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 1.25905
Number of stations at which the event was observed 14
Number of stations from which data was used for origin computation 11
Magnitude information

ML:1.9

Field Value
Value 1.9
Uncertainty 0.3
Num. used stations 16
Type of magnitude ML
Reference to an origin 96754791
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-10-19 07:30:59
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.CING.HHZ. 2021-10-19T07:20:02.23 3.0 undecidable manual Sn 2.09 0
IV.TST02.HHZ. 2021-10-19T07:19:54.47 3.0 undecidable manual Pg 14.27 0
IV.LNSS.HHZ. 2021-10-19T07:19:25.87 3.0 undecidable manual Pn 1.71 0
GU.BHB.HHZ. 2021-10-19T07:19:07.90 0.6 undecidable manual S 270 1.2591 94 0.03 42
GU.TRAV.HHZ. 2021-10-19T07:19:03.73 0.6 undecidable manual S 306 1.1233 94 -0.15 42
CH.MUGIO.HHZ. 2021-10-19T07:19:02.35 0.6 undecidable manual S 0 1.0666 94 0.14 43
IV.VARE.HHZ. 2021-10-19T07:19:01.48 0.6 undecidable manual S 350 1.0306 95 0.35 41
IV.QLNO.HHZ. 2021-10-19T07:18:52.73 0.6 undecidable manual S 223 0.724 97 0.64 42
GU.BHB.HHZ. 2021-10-19T07:18:50.90 0.6 negative manual P 270 1.2591 94 -0.14 41
GU.TRAV.HHZ. 2021-10-19T07:18:48.58 0.6 undecidable manual P 306 1.1233 94 -0.16 42
CH.MUGIO.HHZ. 2021-10-19T07:18:47.67 0.6 undecidable manual P 0 1.0666 94 -0.1 44
IV.VARE.HHZ. 2021-10-19T07:18:47.37 0.6 positive manual P 350 1.0306 95 0.22 43
GU.CANO.HHZ. 2021-10-19T07:18:44.67 0.6 undecidable manual P 222 0.8624 96 0.38 43
GU.PCP.HHZ. 2021-10-19T07:18:44.91 0.3 undecidable manual S 228 0.4694 102 0.26 73
GU.RNCA.HHZ. 2021-10-19T07:18:42.37 0.6 undecidable manual S 189 0.3876 105 0.08 51
IV.QLNO.HHZ. 2021-10-19T07:18:42.19 0.6 undecidable manual P 223 0.724 97 0.26 46
IV.BOB.HHE. 2021-10-19T07:18:40.15 0.6 undecidable manual S 106 0.3022 110 0.29 48
GU.GORR.HHZ. 2021-10-19T07:18:40.06 0.3 undecidable manual S 144 0.3058 110 0.11 76
GU.PCP.HHZ. 2021-10-19T07:18:37.29 0.1 negative manual P 228 0.4694 102 -0.35 94
GU.RNCA.HHZ. 2021-10-19T07:18:36.13 0.1 negative manual P 189 0.3876 105 -0.14 100
GU.GORR.HHZ. 2021-10-19T07:18:34.64 0.1 positive manual P 144 0.3058 110 -0.28 100
IV.SARZ.HHZ. 2021-10-19T07:18:34.82 0.3 undecidable manual S 278 0.0899 148 0.02 81
IV.BOB.HHE. 2021-10-19T07:18:34.76 0.3 undecidable manual P 106 0.3022 110 -0.11 78
IV.SARZ.HHZ. 2021-10-19T07:18:31.52 0.6 undecidable manual P 278 0.0899 148 -0.43 50
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.SARZ.HHN. ML:2.2 0.001315 0.34 AML other m 2021-10-19T07:18:35.10
IV.SARZ.HNN. ML:2.2 0.0012919725 0.3424 AML other m 2021-10-19T07:18:35.09
IV.SARZ.HNE. ML:2.1 0.0009586732 0.32 AML other m 2021-10-19T07:18:35.89
IV.SARZ.HHE. ML:2.1 0.00100110155 0.3392 AML other m 2021-10-19T07:18:35.89
GU.GORR.HHN. ML:1.6 0.0001559866 0.32 AML other m 2021-10-19T07:18:40.17
GU.GORR.HHE. ML:1.6 0.00015074215 0.4032 AML other m 2021-10-19T07:18:41.22
GU.RNCA.HHE. ML:1.2 4.275E-5 0.32 AML other m 2021-10-19T07:18:43.61
GU.RNCA.HHN. ML:1.2 4.345E-5 1.08 AML other m 2021-10-19T07:18:44.44
GU.PCP.HHN. ML:1.2 3.36E-5 0.64 AML other m 2021-10-19T07:18:47.49
GU.PCP.HHE. ML:1.2 3.52E-5 0.86 AML other m 2021-10-19T07:18:48.47
GU.CANO.HHE. ML:0 0.0001455 1.08 AML other m 2021-10-19T07:19:01.13
GU.CANO.HHN. ML:0 0.0001215 0.36 AML other m 2021-10-19T07:19:01.18
CH.MUGIO.HHE. ML:1.6 2.805E-5 0.3 AML other m 2021-10-19T07:19:03.56
CH.MUGIO.HHN. ML:1.6 2.785E-5 0.32 AML other m 2021-10-19T07:19:03.62
GU.TRAV.HHE. ML:2.2 0.0001065 0.54 AML other m 2021-10-19T07:19:05.97
GU.TRAV.HHN. ML:2.1 9.535E-5 0.26 AML other m 2021-10-19T07:19:05.74
IV.QLNO.HHE. ML:1.3 2.522695E-5 0.1408 AML other m 2021-10-19T07:18:57.97
IV.QLNO.HHN. ML:1.3 2.3277225E-5 0.2592 AML other m 2021-10-19T07:18:58.07
GU.BHB.HHE. ML:1.6 1.8523345E-5 0.32 AML other m 2021-10-19T07:19:11.67
GU.BHB.HHN. ML:1.6 1.84074856E-5 0.5216 AML other m 2021-10-19T07:19:15.93
GU.BHB.HNE. ML:1.8 3.3129715E-5 4.6016 AML other m 2021-10-19T07:19:10.77
GU.BHB.HNN. ML:1.8 3.995306E-5 5.072 AML other m 2021-10-19T07:19:10.37
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