Earthquake with magnitude of ML 1.5 on date 26-02-2020 and time 05:42:33 (Italy) in region 3 km S Belforte Monferrato (AL)

A magnitude ML 1.5 earthquake occured in region: 3 km S Belforte Monferrato (AL), on

  • 26-02-2020 04:42:33 (UTC)
  • 26-02-2020 05:42:33 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 44.6, 8.66 at 10 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
Belforte Monferrato AL 3 515 515
Rossiglione GE 4 2779 3294
Ovada AL 4 11477 14771
Tagliolo Monferrato AL 5 1581 16352
Molare AL 5 2181 18533
Lerma AL 6 869 19402
Casaleggio Boiro AL 7 372 19774
Cremolino AL 7 1086 20860
Campo Ligure GE 7 2955 23815
Cassinelle AL 8 914 24729
Rocca Grimalda AL 8 1512 26241
Tiglieto GE 9 546 26787
Mornese AL 9 737 27524
Trisobbio AL 9 655 28179
Montaldeo AL 9 265 28444
Silvano d'Orba AL 10 1988 30432
Carpeneto AL 10 977 31409
Prasco AL 10 521 31930
Castelletto d'Orba AL 10 2047 33977
Montaldo Bormida AL 11 664 34641
Parodi Ligure AL 11 715 35356
Masone GE 11 3679 39035
Morsasco AL 11 679 39714
Bosio AL 12 1227 40941
Morbello AL 12 402 41343
Orsara Bormida AL 13 424 41767
San Cristoforo AL 13 608 42375
Urbe SV 13 700 43075
Grognardo AL 14 259 43334
Visone AL 14 1194 44528
Voltaggio AL 15 738 45266
Capriata d'Orba AL 15 1904 47170
Rivalta Bormida AL 15 1446 48616
Gavi AL 15 4614 53230
Carrosio AL 15 510 53740
Strevi AL 16 2019 55759
Ponzone AL 16 1051 56810
Francavilla Bisio AL 16 531 57341
Tassarolo AL 17 672 58013
Cavatore AL 17 291 58304
Predosa AL 17 2048 60352
Acqui Terme AL 17 19896 80248
Fraconalto AL 17 336 80584
Pasturana AL 18 1318 81902
Castelnuovo Bormida AL 18 694 82596
Mele GE 18 2725 85321
Sassello SV 19 1777 87098
Cartosio AL 19 747 87845
Melazzo AL 19 1325 89170
Basaluzzo AL 19 2087 91257
Cassine AL 20 2961 94218
Malvicino AL 20 85 94303

Municipalities with at least 50000 inhabitants

An earthquake occurred to
30 Km NW of Genova (586655 inhabitants)
35 Km S of Alessandria (93943 inhabitants)
35 Km NE of Savona (61345 inhabitants)
49 Km SE of Asti (76202 inhabitants)
76 Km SW of Pavia (72576 inhabitants)
82 Km S of Vigevano (63310 inhabitants)
89 Km E of Moncalieri (57294 inhabitants)
91 Km E of Cuneo (56081 inhabitants)
94 Km SE of Torino (890529 inhabitants)
94 Km S of Novara (104380 inhabitants)
96 Km SW of Piacenza (102191 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 1.5 2020-02-26
04:42:33
44.6 8.66 10 2020-07-18
21:08:24
Bollettino Sismico Italiano INGV 77146741
Reviewed
Rev100
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 04:42:33 ± 0.09
Latitude 44.60 ± 0.00
Longitude 8.66 ± 0.01
Depth (km) 10 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 77146741

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 483
Semi-minor axis of confidence ellipse (meter) 450
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 253
Circular confidence region, given by single value of horizontal uncertainty (meter) 480
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 96
Number of associated phases, regardless of their use for origin computation 14
Number of defining phases 14
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.2
Epicentral distance of station closest to the epicenter (degree) 0.10072
Epicentral distance of station farthest from the epicenter (degree) 0.49463
Number of stations at which the event was observed 8
Number of stations from which data was used for origin computation 8
Magnitudes information

ML:1.5

Field Value
Value 1.5
Uncertainty 0.4
Num. used stations 6
Type of magnitude ML
Reference to an origin 77146741
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2020-03-09 07:46:40

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
GU.CANO.HHE. 2020-02-26T04:42:50.77 0.6 undecidable manual S 218 0.4946 50 -0.28 45
GU.ROTM.HHZ. 2020-02-26T04:42:46.36 0.1 undecidable manual S 319 0.3318 50 0.15 96
IV.QLNO.HHZ. 2020-02-26T04:42:46.90 0.1 undecidable manual S 219 0.3552 50 0 99
GU.RNCA.HHZ. 2020-02-26T04:42:43.48 0.1 undecidable manual S 122 0.2437 50 -0.12 98
GU.CANO.HHE. 2020-02-26T04:42:43.66 0.3 undecidable manual P 218 0.4946 50 -0.05 71
GU.GORR.HHN. 2020-02-26T04:42:42.80 1.0 undecidable manual P 89 0.4497 50 -0.14 24
GU.ROTM.HHZ. 2020-02-26T04:42:41.04 0.1 positive manual P 319 0.3318 50 0.12 97
IV.QLNO.HHZ. 2020-02-26T04:42:41.46 1.0 negative manual P 219 0.3552 50 0.14 24
IT.ACQ.HGZ. 2020-02-26T04:42:40.21 0.6 undecidable manual S 301 0.1637 119 -0.67 43
IV.SARZ.HHZ. 2020-02-26T04:42:40.94 0.3 undecidable manual P 34 0.322 50 0.18 72
GU.RNCA.HHZ. 2020-02-26T04:42:39.38 0.6 negative manual P 122 0.2437 50 -0.03 50
GU.PCP.HHZ. 2020-02-26T04:42:39.08 0.1 undecidable manual S 235 0.1007 132 0.18 100
IT.ACQ.HGZ. 2020-02-26T04:42:37.59 0.3 undecidable manual P 301 0.1637 119 -0.25 73
GU.PCP.HHZ. 2020-02-26T04:42:36.90 0.1 undecidable manual P 235 0.1007 132 0.2 100
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
GU.RNCA.HHN. ML:1.2 8.535372E-5 0.2208 AML other m 2020-02-26T04:42:43.56
GU.RNCA.HHE. ML:0.9 3.838173575E-5 0.3392 AML other m 2020-02-26T04:42:43.77
GU.ROTM.HHE. ML:2 0.00037628865 0.1216 AML other m 2020-02-26T04:42:46.57
GU.ROTM.HHN. ML:2.1 0.00050857795 0.16 AML other m 2020-02-26T04:42:46.52
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