Earthquake with magnitude of ML 1.7 on date 10-04-2020 and time 06:23:38 (UTC) in region 2 km W Sarezzano (AL)

A magnitude ML 1.7 earthquake occured in region: 2 km W Sarezzano (AL), on

  • 10-04-2020 06:23:38 (UTC)
  • 10-04-2020 08:23:38 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 44.87, 8.9 at 27 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
Sarezzano AL 2 1171 1171
Villaromagnano AL 2 715 1886
Carbonara Scrivia AL 3 1122 3008
Tortona AL 4 27437 30445
Viguzzolo AL 4 3148 33593
Spineto Scrivia AL 4 337 33930
Cerreto Grue AL 4 323 34253
Berzano di Tortona AL 4 157 34410
Volpeglino AL 6 148 34558
Paderna AL 6 220 34778
Castellar Guidobono AL 6 399 35177
Montegioco AL 6 313 35490
Costa Vescovato AL 6 335 35825
Villalvernia AL 7 955 36780
Volpedo AL 7 1227 38007
Monleale AL 7 566 38573
Carezzano AL 7 431 39004
Montemarzino AL 8 341 39345
Casalnoceto AL 8 980 40325
Castellania AL 9 90 40415
Avolasca AL 9 294 40709
Sant'Agata Fossili AL 10 425 41134
Casasco AL 10 129 41263
Pontecurone AL 10 3723 44986
Pozzol Groppo AL 11 328 45314
Gavazzana AL 11 180 45494
Momperone AL 11 223 45717
Rivanazzano Terme PV 12 5312 51029
Cassano Spinola AL 12 1731 52760
Castelnuovo Scrivia AL 12 5274 58034
Pozzolo Formigaro AL 13 4775 62809
Garbagna AL 13 696 63505
Godiasco Salice Terme PV 13 3229 66734
Sardigliano AL 13 406 67140
Brignano-Frascata AL 13 456 67596
Retorbido PV 14 1538 69134
Sale AL 14 4172 73306
Cecima PV 15 236 73542
Novi Ligure AL 15 28154 101696
Casei Gerola PV 15 2500 104196
Borghetto di Borbera AL 16 1966 106162
Ponte Nizza PV 16 807 106969
Piovera AL 16 851 107820
Stazzano AL 16 2486 110306
Codevilla PV 16 997 111303
Voghera PV 16 39421 150724
Alzano Scrivia AL 16 377 151101
San Sebastiano Curone AL 16 583 151684
Rocca Susella PV 16 225 151909
Guazzora AL 16 305 152214
Dernice AL 17 185 152399
Alluvioni CambiĆ² AL 17 912 153311
Molino dei Torti AL 17 605 153916
Serravalle Scrivia AL 17 6128 160044
Frugarolo AL 18 1968 162012
Pasturana AL 18 1318 163330
Vignole Borbera AL 18 2182 165512
Isola Sant'Antonio AL 18 717 166229
Bosco Marengo AL 18 2457 168686
Gremiasco AL 18 324 169010
Rivarone AL 19 381 169391
Montesegale PV 19 298 169689
Bagnaria PV 19 658 170347
Montecastello AL 19 321 170668
Tassarolo AL 19 672 171340
Basaluzzo AL 19 2087 173427
Torrazza Coste PV 19 1680 175107
Silvano Pietra PV 19 672 175779
Bassignana AL 19 1709 177488
Fresonara AL 19 731 178219
Cornale e Bastida PV 20 867 179086
Pietra Marazzi AL 20 904 179990
Francavilla Bisio AL 20 531 180521
Grondona AL 20 510 181031

Municipalities with at least 50000 inhabitants

An earthquake occurred to
23 Km E of Alessandria (93943 inhabitants)
41 Km SW of Pavia (72576 inhabitants)
50 Km S of Vigevano (63310 inhabitants)
51 Km N of Genova (586655 inhabitants)
55 Km E of Asti (76202 inhabitants)
66 Km W of Piacenza (102191 inhabitants)
68 Km SE of Novara (104380 inhabitants)
70 Km SW of Milano (1345851 inhabitants)
71 Km NE of Savona (61345 inhabitants)
74 Km S of Rho (50434 inhabitants)
78 Km SW of Sesto San Giovanni (81608 inhabitants)
80 Km S of Legnano (60262 inhabitants)
80 Km SW of Cinisello Balsamo (75078 inhabitants)
83 Km S of Busto Arsizio (83106 inhabitants)
85 Km SW of Monza (122671 inhabitants)
88 Km S of Gallarate (53343 inhabitants)
93 Km W of Cremona (71901 inhabitants)
96 Km E of Moncalieri (57294 inhabitants)
98 Km E of Torino (890529 inhabitants)
Recent and historical Seismicity
Seismic hazard
Shakemap
Felt maps
The earthquake effects in MCS scale as obtained from the compiled questionnaire

The earthquake effects in MCS scale as obtained from the compiled questionnaire

This map shows the distribution of the effects of the earthquake on the territory in terms of the MCS (Mercalli-Cancani-Sieberg) intensity scale. The intensities are determined using the data provided in the questionnaire (http://www.haisentitoilterremoto.it/) that are analysed using robust statistical techniques since they are not verified individually. Specifically, the assignment of MCS intensities greater or equal the VI degree of the MCS scale require opportune in situ verification by professional experts. The purple start shows the epicenter. This map is prepared every so often that the population fill in new questionnaires. The number of questionnaires used to determine the map and the date and time of the last adjournment are shown in the upper right part of the panel.
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
Rev 100 ML 1.7 2020-04-10
06:23:38
44.87 8.9 27 2020-04-10
06:41:32
Sala Sismica INGV-Roma 78071241
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-04-10 06:23:38 ± 0.17
Latitude 44.87 ± 0.01
Longitude 8.90 ± 0.01
Depth (km) 27 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 78071241

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1021
Semi-minor axis of confidence ellipse (meter) 964
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 10
Circular confidence region, given by single value of horizontal uncertainty (meter) 1020
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 156
Number of associated phases, regardless of their use for origin computation 28
Number of defining phases 21
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.38
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 1.30582
Number of stations at which the event was observed 17
Number of stations from which data was used for origin computation 11
Magnitude information

ML:1.7

Field Value
Value 1.7
Uncertainty 0.3
Num. used stations 18
Type of magnitude ML
Reference to an origin 78071241
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-04-10 06:41:32
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.CMPO.HNZ. 2020-04-10T06:24:38.98 3.0 undecidable manual Sn -0.69 0
IV.NDIM.HNZ. 2020-04-10T06:24:29.05 3.0 undecidable manual S 5.86 0
IV.MAGA.HHZ. 2020-04-10T06:24:27.96 3.0 undecidable manual S 0
IV.BDI.HHZ. 2020-04-10T06:24:24.84 3.0 undecidable manual Sn 0.46 0
IV.SBPO.HNZ. 2020-04-10T06:24:22.39 3.0 undecidable manual Sn -1.3 0
FR.SAOF.HHZ.00 2020-04-10T06:24:17.74 0.6 undecidable manual S 228 1.3058 54 -0.52 35
GU.BHB.HHZ. 2020-04-10T06:24:14.81 0.3 undecidable manual S 269 1.1583 54 0.07 61
GU.TRAV.HHZ. 2020-04-10T06:24:11.26 0.3 undecidable manual S 309 1.0324 99 -0.18 62
IV.MAGA.HHZ. 2020-04-10T06:24:06.38 3.0 undecidable manual Pg 0
GU.CANO.HHZ. 2020-04-10T06:24:05.44 0.6 undecidable manual S 216 0.8139 102 0.39 41
FR.SAOF.HHZ.00 2020-04-10T06:24:01.13 0.1 undecidable manual P 228 1.3058 54 -0.14 77
IV.QLNO.HHZ. 2020-04-10T06:24:01.08 0.6 undecidable manual S 216 0.6736 104 0.08 45
GU.BHB.HHZ. 2020-04-10T06:24:00.62 0.1 undecidable manual P 269 1.1583 54 1.39 50
GU.TRAV.HHZ. 2020-04-10T06:23:56.39 0.1 undecidable manual P 309 1.0324 99 -0.94 64
IV.BOB.HHE. 2020-04-10T06:23:54.06 0.3 undecidable manual S 105 0.4038 115 0.63 62
GU.PCP.HHE. 2020-04-10T06:23:53.47 0.3 undecidable manual S 217 0.4146 114 -0.26 70
GU.CANO.HHZ. 2020-04-10T06:23:53.61 0.6 undecidable manual P 216 0.8139 102 -0.03 44
GU.GORR.HHZ. 2020-04-10T06:23:52.69 0.6 undecidable manual S 133 0.3858 116 -0.26 46
IT.ACQ.HGE. 2020-04-10T06:23:52.46 0.3 undecidable manual S 239 0.3624 118 0.13 70
GU.RNCA.HHZ. 2020-04-10T06:23:52.93 0.6 undecidable manual S 175 0.402 115 -0.47 44
IV.QLNO.HHZ. 2020-04-10T06:23:51.23 0.3 undecidable manual P 216 0.6736 104 -0.07 68
IV.BOB.HHE. 2020-04-10T06:23:47.24 0.1 undecidable manual P 105 0.4038 115 0.31 91
GU.PCP.HHE. 2020-04-10T06:23:47.00 0.1 undecidable manual P 217 0.4146 114 -0.1 95
GU.RNCA.HHZ. 2020-04-10T06:23:46.84 1.0 negative manual P 175 0.402 115 -0.07 24
GU.GORR.HHZ. 2020-04-10T06:23:46.45 0.1 undecidable manual P 133 0.3858 116 -0.2 93
IT.ACQ.HGE. 2020-04-10T06:23:46.85 0.1 undecidable manual P 239 0.3624 118 0.55 85
IV.EUCT.HNZ. 2020-04-10T06:23:44.31 3.0 undecidable manual P -0.9 0
IV.SARZ.HNZ. 2020-04-10T06:23:42.46 0.1 undecidable manual P 113 0.0126 177 -0.26 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.EUCT.HNN. ML:2.6 0.001137 0.5 AML other m 2020-04-10T06:23:50.29
IV.EUCT.HNE. ML:2.6 0.0011335 0.56 AML other m 2020-04-10T06:23:50.36
GU.RNCA.HHN. ML:1.4 5.8E-5 0.2 AML other m 2020-04-10T06:23:53.14
GU.RNCA.HHE. ML:1.5 7.465E-5 0.3 AML other m 2020-04-10T06:23:53.15
GU.GORR.HHN. ML:1.4 7.46E-5 0.2 AML other m 2020-04-10T06:23:53.45
GU.GORR.HHE. ML:1.4 6.685E-5 0.48 AML other m 2020-04-10T06:23:55.43
IV.QLNO.HHE. ML:1.2 2.695E-5 1.52 AML other m 2020-04-10T06:24:02.10
IV.QLNO.HHN. ML:1.3 3.115E-5 0.2 AML other m 2020-04-10T06:24:03.38
GU.CANO.HHE. ML:1.9 8.335E-5 1.14 AML other m 2020-04-10T06:24:05.06
GU.CANO.HHN. ML:1.9 8.045E-5 0.82 AML other m 2020-04-10T06:24:07.69
GU.TRAV.HHN. ML:1.7 3.475E-5 0.56 AML other m 2020-04-10T06:24:14.33
GU.TRAV.HHE. ML:1.7 3.99E-5 1.44 AML other m 2020-04-10T06:24:15.00
FR.SAOF.HHE.00 ML:1.4 1.375E-5 1.5 AML other m 2020-04-10T06:24:18.10
GU.BHB.HHE. ML:1.9 5.725E-5 0.52 AML other m 2020-04-10T06:24:18.24
FR.SAOF.HHN.00 ML:1.4 1.695E-5 0.42 AML other m 2020-04-10T06:24:18.38
GU.BHB.HHN. ML:1.8 3.785E-5 0.38 AML other m 2020-04-10T06:24:18.19
IV.MAGA.HHE. ML:2 4.6491E-5 0.2592 AML other m 2020-04-10T06:24:31.52
IV.MAGA.HHN. ML:1.9 2.979227E-5 0.24 AML other m 2020-04-10T06:24:30.59
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
Download
Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download