Earthquake with magnitude of ML 1.7 on date 10-04-2020 and time 06:23:38 (UTC) in region 1 km W Castellania (AL)

A magnitude ML 1.7 earthquake occured in region: 1 km W Castellania (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) 44.8, 8.92 at 31 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
Castellania AL 1 90 90
Sant'Agata Fossili AL 1 425 515
Carezzano AL 2 431 946
Costa Vescovato AL 3 335 1281
Gavazzana AL 4 180 1461
Paderna AL 4 220 1681
Avolasca AL 4 294 1975
Sardigliano AL 5 406 2381
Cerreto Grue AL 5 323 2704
Montegioco AL 5 313 3017
Villalvernia AL 6 955 3972
Cassano Spinola AL 6 1731 5703
Spineto Scrivia AL 6 337 6040
Garbagna AL 7 696 6736
Villaromagnano AL 7 715 7451
Carbonara Scrivia AL 7 1122 8573
Borghetto di Borbera AL 8 1966 10539
Casasco AL 8 129 10668
Sarezzano AL 8 1171 11839
Montemarzino AL 8 341 12180
Stazzano AL 9 2486 14666
Berzano di Tortona AL 9 157 14823
Brignano-Frascata AL 10 456 15279
Serravalle Scrivia AL 10 6128 21407
Vignole Borbera AL 10 2182 23589
Momperone AL 10 223 23812
Dernice AL 11 185 23997
Pozzolo Formigaro AL 11 4775 28772
Monleale AL 11 566 29338
Novi Ligure AL 11 28154 57492
Volpeglino AL 11 148 57640
Grondona AL 12 510 58150
San Sebastiano Curone AL 12 583 58733
Volpedo AL 12 1227 59960
Tortona AL 12 27437 87397
Viguzzolo AL 12 3148 90545
Castellar Guidobono AL 12 399 90944
Arquata Scrivia AL 13 6409 97353
Pozzol Groppo AL 13 328 97681
Cantalupo Ligure AL 13 527 98208
Casalnoceto AL 14 980 99188
Cecima PV 14 236 99424
Tassarolo AL 14 672 100096
Rocchetta Ligure AL 14 200 100296
Pasturana AL 14 1318 101614
Gremiasco AL 15 324 101938
Montacuto AL 15 278 102216
Gavi AL 15 4614 106830
Ponte Nizza PV 15 807 107637
Godiasco Salice Terme PV 16 3229 110866
Roccaforte Ligure AL 16 136 111002
Albera Ligure AL 16 325 111327
Francavilla Bisio AL 16 531 111858
Bagnaria PV 17 658 112516
Carrosio AL 17 510 113026
Rivanazzano Terme PV 17 5312 118338
Isola del Cantone GE 17 1540 119878
Basaluzzo AL 17 2087 121965
San Cristoforo AL 18 608 122573
Pontecurone AL 18 3723 126296
Fresonara AL 19 731 127027
Parodi Ligure AL 19 715 127742
Rocca Susella PV 19 225 127967
Fabbrica Curone AL 19 656 128623
Bosio AL 19 1227 129850
Retorbido PV 19 1538 131388
Bosco Marengo AL 19 2457 133845
Capriata d'Orba AL 20 1904 135749
Frugarolo AL 20 1968 137717
Cabella Ligure AL 20 528 138245

Municipalities with at least 50000 inhabitants

An earthquake occurred to
27 Km E of Alessandria (93943 inhabitants)
43 Km N of Genova (586655 inhabitants)
47 Km SW of Pavia (72576 inhabitants)
58 Km E of Asti (76202 inhabitants)
58 Km S of Vigevano (63310 inhabitants)
65 Km NE of Savona (61345 inhabitants)
67 Km W of Piacenza (102191 inhabitants)
76 Km SE of Novara (104380 inhabitants)
78 Km S of Milano (1345851 inhabitants)
82 Km S of Rho (50434 inhabitants)
86 Km SW of Sesto San Giovanni (81608 inhabitants)
88 Km S of Cinisello Balsamo (75078 inhabitants)
89 Km S of Legnano (60262 inhabitants)
91 Km S of Busto Arsizio (83106 inhabitants)
92 Km SW of Monza (122671 inhabitants)
95 Km W of Cremona (71901 inhabitants)
97 Km S of Gallarate (53343 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 1.7 2020-04-10
06:23:38
44.8 8.92 31 2020-07-18
21:08:41
Bollettino Sismico Italiano INGV 80881681
Reviewed
Rev100
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 ± 0.15
Latitude 44.80 ± 0.02
Longitude 8.92 ± 0.01
Depth (km) 31 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 80881681

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1760
Semi-minor axis of confidence ellipse (meter) 468
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 171
Circular confidence region, given by single value of horizontal uncertainty (meter) 1760
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 54
Number of associated phases, regardless of their use for origin computation 22
Number of defining phases 22
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.4
Epicentral distance of station closest to the epicenter (degree) 0.07015
Epicentral distance of station farthest from the epicenter (degree) 1.54863
Number of stations at which the event was observed 12
Number of stations from which data was used for origin computation 12
Magnitudes 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

ML:1.7

Field Value
Value 1.7
Uncertainty 0.3
Num. used stations 18
Type of magnitude ML
Reference to an origin 80881681
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2020-07-08 12:54:25
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
FR.SAOF.HHZ.00 2020-04-10T06:24:17.74 0.6 undecidable manual S 231 1.2689 54 0.33 37
GU.BHB.HHZ. 2020-04-10T06:24:14.81 0.3 undecidable manual S 272 1.1754 54 -0.36 58
IV.MAGA.HHZ. 2020-04-10T06:24:06.37 0.3 undecidable manual P 50 1.5486 54 1.44 33
GU.CANO.HHZ. 2020-04-10T06:24:05.44 0.6 undecidable manual S 220 0.7644 106 0.85 34
FR.SAOF.HHZ.00 2020-04-10T06:24:01.13 0.1 undecidable manual P 231 1.2689 54 0.06 80
IV.QLNO.HHZ. 2020-04-10T06:24:01.08 0.6 undecidable manual S 221 0.625 109 0.43 42
GU.BHB.HHZ. 2020-04-10T06:24:00.62 0.1 undecidable manual P 272 1.1754 54 0.85 66
GU.TRAV.HHZ. 2020-04-10T06:23:57.38 0.3 undecidable manual P 311 1.0936 54 -1.26 40
IV.BOB.HHE. 2020-04-10T06:23:54.06 0.3 undecidable manual S 94 0.375 122 0.12 74
IT.ACQ.HGE. 2020-04-10T06:23:53.03 0.3 undecidable manual S 251 0.3444 125 -0.15 73
GU.PCP.HHE. 2020-04-10T06:23:53.47 0.3 undecidable manual S 226 0.3696 123 -0.32 71
GU.CANO.HHZ. 2020-04-10T06:23:53.63 0.3 undecidable manual P 220 0.7644 106 -0.04 69
GU.GORR.HHZ. 2020-04-10T06:23:52.45 0.6 undecidable manual S 126 0.3256 126 -0.27 48
GU.RNCA.HHZ. 2020-04-10T06:23:52.93 0.6 undecidable manual S 176 0.3265 126 0.19 48
IV.QLNO.HHZ. 2020-04-10T06:23:51.23 0.3 undecidable manual P 221 0.625 109 -0.16 69
IV.SARZ.HNZ. 2020-04-10T06:23:49.06 0.6 undecidable manual S 356 0.0701 165 0.81 44
GU.PCP.HHE. 2020-04-10T06:23:47.00 0.1 undecidable manual P 226 0.3696 123 -0.43 91
IV.BOB.HHE. 2020-04-10T06:23:47.24 0.1 undecidable manual P 94 0.375 122 -0.28 93
GU.RNCA.HHZ. 2020-04-10T06:23:46.82 0.1 undecidable manual P 176 0.3265 126 0 100
IT.ACQ.HGE. 2020-04-10T06:23:46.85 0.1 undecidable manual P 251 0.3444 125 -0.23 95
GU.GORR.HHZ. 2020-04-10T06:23:46.45 0.1 undecidable manual P 126 0.3256 126 -0.36 93
IV.SARZ.HNZ. 2020-04-10T06:23:44.36 0.3 undecidable manual P 356 0.0701 165 0.13 79
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.EUCT.HNN. ML:2.7 0.001137 0.5 AML other m 2020-04-10T06:23:50.29
IV.EUCT.HNE. ML:2.7 0.0011335 0.56 AML other m 2020-04-10T06:23:50.36
GU.RNCA.HHN. ML:1.3 5.8E-5 0.2 AML other m 2020-04-10T06:23:53.14
GU.RNCA.HHE. ML:1.4 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:1.8 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:1.8 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:2 5.725E-5 0.52 AML other m 2020-04-10T06:24:18.24
GU.BHB.HHN. ML:1.8 3.785E-5 0.38 AML other m 2020-04-10T06:24:18.19
FR.SAOF.HHN.00 ML:1.4 1.695E-5 0.42 AML other m 2020-04-10T06:24:18.38
IV.MAGA.HHN. ML:1.9 2.979227E-5 0.24 AML other m 2020-04-10T06:24:30.59
IV.MAGA.HHE. ML:2.1 4.6491E-5 0.2592 AML other m 2020-04-10T06:24:31.52
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