Earthquake with magnitude of ML 1.5 on date 26-02-2020 and time 05:42:34 (Italy) in region 3 km NW Rossiglione (GE)

A magnitude ML 1.5 earthquake occured in region: 3 km NW Rossiglione (GE), on

  • 26-02-2020 04:42:34 (UTC)
  • 26-02-2020 05:42:34 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 44.58, 8.65 at 11 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
Rossiglione GE 3 2779 2779
Belforte Monferrato AL 5 515 3294
Molare AL 6 2181 5475
Campo Ligure GE 6 2955 8430
Ovada AL 6 11477 19907
Tiglieto GE 7 546 20453
Tagliolo Monferrato AL 7 1581 22034
Cassinelle AL 8 914 22948
Lerma AL 8 869 23817
Cremolino AL 8 1086 24903
Casaleggio Boiro AL 9 372 25275
Rocca Grimalda AL 10 1512 26787
Masone GE 10 3679 30466
Trisobbio AL 10 655 31121
Prasco AL 10 521 31642
Mornese AL 11 737 32379
Carpeneto AL 11 977 33356
Morbello AL 11 402 33758
Urbe SV 11 700 34458
Montaldeo AL 12 265 34723
Silvano d'Orba AL 12 1988 36711
Morsasco AL 12 679 37390
Montaldo Bormida AL 12 664 38054
Castelletto d'Orba AL 12 2047 40101
Parodi Ligure AL 13 715 40816
Bosio AL 14 1227 42043
Grognardo AL 14 259 42302
Orsara Bormida AL 14 424 42726
Visone AL 15 1194 43920
San Cristoforo AL 15 608 44528
Ponzone AL 15 1051 45579
Voltaggio AL 16 738 46317
Strevi AL 16 2019 48336
Rivalta Bormida AL 16 1446 49782
Cavatore AL 17 291 50073
Capriata d'Orba AL 17 1904 51977
Carrosio AL 17 510 52487
Sassello SV 17 1777 54264
Gavi AL 17 4614 58878
Mele GE 17 2725 61603
Acqui Terme AL 18 19896 81499
Fraconalto AL 18 336 81835
Cartosio AL 18 747 82582
Francavilla Bisio AL 18 531 83113
Tassarolo AL 19 672 83785
Malvicino AL 19 85 83870
Melazzo AL 19 1325 85195
Predosa AL 19 2048 87243
Castelnuovo Bormida AL 20 694 87937

Municipalities with at least 50000 inhabitants

An earthquake occurred to
29 Km NW of Genova (586655 inhabitants)
33 Km NE of Savona (61345 inhabitants)
37 Km S of Alessandria (93943 inhabitants)
50 Km SE of Asti (76202 inhabitants)
78 Km SW of Pavia (72576 inhabitants)
84 Km S of Vigevano (63310 inhabitants)
89 Km SE of Moncalieri (57294 inhabitants)
90 Km E of Cuneo (56081 inhabitants)
94 Km SE of Torino (890529 inhabitants)
96 Km S of Novara (104380 inhabitants)
98 Km SW of Piacenza (102191 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 1.5 2020-02-26
04:42:34
44.58 8.65 11 2020-02-26
04:49:12
Sala Sismica INGV-Roma 76819551
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-02-26 04:42:34 ± 0.18
Latitude 44.58 ± 0.01
Longitude 8.65 ± 0.01
Depth (km) 11 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 76819551

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1040
Semi-minor axis of confidence ellipse (meter) 996
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 147
Circular confidence region, given by single value of horizontal uncertainty (meter) 1040
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 103
Number of associated phases, regardless of their use for origin computation 21
Number of defining phases 10
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
Epicentral distance of station farthest from the epicenter (degree) 0.34084
Number of stations at which the event was observed 16
Number of stations from which data was used for origin computation 5
Magnitude information

ML:1.5

Field Value
Value 1.5
Uncertainty 0.1
Num. used stations 2
Type of magnitude ML
Reference to an origin 76819551
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-02-26 04:49:12
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.CAFE.HHZ. 2020-02-26T04:44:19.19 3.0 undecidable manual Pg 16.08 0
IV.COR1.EHZ. 2020-02-26T04:44:04.27 3.0 undecidable manual Sn -1.53 0
IV.PTRJ.HNZ. 2020-02-26T04:43:53.35 3.0 undecidable manual Pn -1.13 0
ST.VARA.EHZ. 2020-02-26T04:43:34.28 3.0 undecidable manual Sn -0.42 0
IV.ATFO.HHZ. 2020-02-26T04:43:22.19 3.0 undecidable manual Pn -0.66 0
IV.APPI.EHZ. 2020-02-26T04:43:16.28 3.0 undecidable manual Pn -0.02 0
IV.MBAL.EHZ. 2020-02-26T04:43:11.57 3.0 positive manual Pg 4.87 0
IV.FIR.HHZ. 2020-02-26T04:43:09.00 3.0 undecidable manual Pn 0.43 0
GU.BLANC.HHZ. 2020-02-26T04:43:05.67 3.0 undecidable manual Pn 1.52 0
IV.ZONE.HHZ. 2020-02-26T04:43:04.33 3.0 undecidable manual Pg 2.46 0
GU.BHB.HHZ. 2020-02-26T04:42:53.00 3.0 positive manual P -0.94 0
IV.SARZ.HHZ. 2020-02-26T04:42:47.56 0.1 undecidable manual S 33 0.3408 50 0.87 74
GU.ROTM.HHZ. 2020-02-26T04:42:46.36 0.1 undecidable manual S 322 0.3399 50 -0.3 90
IV.QLNO.HHZ. 2020-02-26T04:42:46.90 0.1 undecidable manual S 220 0.3372 50 0.32 89
GU.RNCA.HHZ. 2020-02-26T04:42:43.48 0.1 undecidable manual S 117 0.2419 50 -0.28 92
GU.ROTM.HHZ. 2020-02-26T04:42:41.04 0.1 positive manual P 322 0.3399 50 -0.29 90
IV.QLNO.HHZ. 2020-02-26T04:42:41.46 1.0 negative manual P 220 0.3372 50 0.18 23
IV.SARZ.HHZ. 2020-02-26T04:42:40.98 0.6 negative manual P 33 0.3408 50 -0.36 44
GU.PCP.HHZ. 2020-02-26T04:42:39.08 0.1 undecidable manual S 241 0.0854 138 0.1 98
GU.RNCA.HHZ. 2020-02-26T04:42:39.38 0.6 negative manual P 117 0.2419 50 -0.27 46
GU.PCP.HHZ. 2020-02-26T04:42:36.90 0.1 undecidable manual P 241 0.0854 138 0 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
GU.PCP.HHN. ML:1.6 0.0005335 0.08 AML other m 2020-02-26T04:42:39.22
GU.PCP.HHE. ML:1.4 0.0003355 0.24 AML other m 2020-02-26T04:42:39.50
IV.ZONE.HHE. ML:2.2 5.415E-5 0.1 AML other m 2020-02-26T04:43:14.09
IV.ZONE.HHN. ML:2.1 4.5675E-5 0.08 AML other m 2020-02-26T04:43:14.43
IV.APPI.EHE. ML:3.3 0.0002495 0.06 AML other m 2020-02-26T04:43:17.59
IV.APPI.EHN. ML:3 0.00014345 0.06 AML other m 2020-02-26T04:43:17.63
IV.FIR.HNN. ML:3.1 0.0003125 1.32 AML other m 2020-02-26T04:43:58.94
IV.FIR.HHN. ML:3.1 0.0002845 1.08 AML other m 2020-02-26T04:44:03.39
IV.FIR.HHE. ML:3.1 0.0002935 0.48 AML other m 2020-02-26T04:44:05.65
IV.FIR.HNE. ML:3.1 0.0003185 0.96 AML other m 2020-02-26T04:44:08.67
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