Earthquake with magnitude of ML 1.6 on date 09-09-2019 and time 05:12:09 (Italy) in region 2 km S Ponzone (AL)

A magnitude ML 1.6 earthquake occured in region: 2 km S Ponzone (AL), on

  • 09-09-2019 03:12:09 (UTC)
  • 09-09-2019 05:12:09 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 44.57, 8.46 at 7 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
Ponzone AL 2 1051 1051
Malvicino AL 3 85 1136
Cartosio AL 4 747 1883
Morbello AL 6 402 2285
Montechiaro d'Acqui AL 7 560 2845
Cavatore AL 7 291 3136
Grognardo AL 8 259 3395
Pareto AL 8 554 3949
Castelletto d'Erro AL 8 148 4097
Melazzo AL 9 1325 5422
Mioglia SV 9 526 5948
Cassinelle AL 10 914 6862
Ponti AL 10 606 7468
Spigno Monferrato AL 10 1050 8518
Sassello SV 10 1777 10295
Mombaldone AT 10 209 10504
Denice AL 10 176 10680
Visone AL 11 1194 11874
Prasco AL 12 521 12395
Terzo AL 12 923 13318
Acqui Terme AL 12 19896 33214
Bistagno AL 13 1887 35101
Molare AL 13 2181 37282
Cremolino AL 13 1086 38368
Morsasco AL 13 679 39047
Pontinvrea SV 14 847 39894
Merana AL 14 189 40083
Giusvalla SV 14 441 40524
Monastero Bormida AT 14 931 41455
Urbe SV 14 700 42155
Tiglieto GE 14 546 42701
Piana Crixia SV 15 788 43489
Sessame AT 15 271 43760
Trisobbio AL 15 655 44415
Roccaverano AT 15 399 44814
Serole AT 16 123 44937
Montabone AT 16 333 45270
Strevi AL 16 2019 47289
Orsara Bormida AL 16 424 47713
Olmo Gentile AT 17 80 47793
Montaldo Bormida AL 17 664 48457
Bubbio AT 17 893 49350
Rossiglione GE 17 2779 52129
Ovada AL 17 11477 63606
Carpeneto AL 17 977 64583
Dego SV 17 1985 66568
Castel Rocchero AT 17 395 66963
Belforte Monferrato AL 18 515 67478
San Giorgio Scarampi AT 18 122 67600
Alice Bel Colle AL 18 766 68366
Rivalta Bormida AL 18 1446 69812
Rocchetta Palafea AT 18 338 70150
Castel Boglione AT 18 609 70759
Cassinasco AT 18 611 71370
Ricaldone AL 19 684 72054
Tagliolo Monferrato AL 19 1581 73635
Stella SV 19 3009 76644
Rocca Grimalda AL 19 1512 78156
Cessole AT 19 403 78559
Loazzolo AT 19 359 78918
Campo Ligure GE 19 2955 81873
Perletto CN 20 292 82165
Vesime AT 20 622 82787

Municipalities with at least 50000 inhabitants

An earthquake occurred to
29 Km N of Savona (61345 inhabitants)
41 Km SW of Alessandria (93943 inhabitants)
42 Km W of Genova (586655 inhabitants)
42 Km SE of Asti (76202 inhabitants)
74 Km E of Cuneo (56081 inhabitants)
78 Km SE of Moncalieri (57294 inhabitants)
83 Km SE of Torino (890529 inhabitants)
89 Km SW of Pavia (72576 inhabitants)
90 Km SW of Vigevano (63310 inhabitants)
99 Km NE of Sanremo (54807 inhabitants)
99 Km S of Novara (104380 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 1.6 2019-09-09
03:12:09
44.57 8.46 7 2019-09-09
03:23:54
Sala Sismica INGV-Roma 72245971
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-09-09 03:12:09 ± 0.1
Latitude 44.57 ± 0.01
Longitude 8.46 ± 0.01
Depth (km) 7 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 72245971

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 863
Semi-minor axis of confidence ellipse (meter) 545
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 85
Circular confidence region, given by single value of horizontal uncertainty (meter) 860
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 86
Number of associated phases, regardless of their use for origin computation 37
Number of defining phases 25
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.36
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.95688
Number of stations at which the event was observed 27
Number of stations from which data was used for origin computation 15
Magnitude information

ML:1.6

Field Value
Value 1.6
Uncertainty 0.3
Num. used stations 15
Type of magnitude ML
Reference to an origin 72245971
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-09-09 03:23:54
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.PAOL.HHZ. 2019-09-09T03:13:56.02 3.0 undecidable manual Pg 18.870001 0
IV.VCRE.HHZ. 2019-09-09T03:13:48.41 3.0 negative manual Pg 10.43 0
IV.ATFO.HHZ. 2019-09-09T03:13:44.62 3.0 undecidable manual Sn 0.94 0
IV.APEC.HHZ. 2019-09-09T03:13:40.31 3.0 undecidable manual Sn 0.89 0
IV.MIDA.HHZ. 2019-09-09T03:13:37.80 3.0 undecidable manual Pg 8.38 0
IV.PTRJ.HNZ. 2019-09-09T03:13:33.54 3.0 negative manual Pn -0.44 0
IV.MTRA.EHZ. 2019-09-09T03:13:24.82 3.0 undecidable manual Pg 11.01 0
IV.ARRO.EHZ. 2019-09-09T03:13:14.16 3.0 positive manual Pg 4.6 0
IV.CPGN.EHZ. 2019-09-09T03:13:05.46 3.0 undecidable manual Pg 7.16 0
IV.FOSV.EHZ. 2019-09-09T03:13:03.89 3.0 negative manual Pn -0.93 0
IV.RIBO.EHZ.01 2019-09-09T03:12:53.61 3.0 negative manual Pg 1.04 0
GU.PZZ.HHZ. 2019-09-09T03:12:41.24 0.3 undecidable manual S 267 0.9569 50 -0.44 58
GU.BHB.HHZ. 2019-09-09T03:12:39.20 0.3 undecidable manual S 288 0.8894 50 -0.48 59
FR.SAOF.HHZ.00 2019-09-09T03:12:38.94 0.3 undecidable manual S 228 0.8687 50 -0.12 64
GU.ENR.HHZ. 2019-09-09T03:12:37.50 0.3 undecidable manual S 246 0.8139 50 0.05 65
IV.IMI.HHE. 2019-09-09T03:12:36.53 0.3 undecidable manual S 212 0.7698 50 0.4 61
GU.GBOS.HHZ. 2019-09-09T03:12:29.24 0.3 undecidable manual S 234 0.5468 50 -0.3 66
GU.PZZ.HHZ. 2019-09-09T03:12:28.55 0.3 undecidable manual P 267 0.9569 50 0.28 60
GU.BHB.HHZ. 2019-09-09T03:12:27.04 0.1 undecidable manual P 288 0.8894 50 -0.07 85
FR.SAOF.HHZ.00 2019-09-09T03:12:27.98 0.3 undecidable manual P 228 0.8687 50 1.22 43
GU.STV.HHZ. 2019-09-09T03:12:27.44 0.3 undecidable manual P 249 0.8687 50 0.68 55
GU.ENR.HHZ. 2019-09-09T03:12:26.81 0.3 undecidable manual P 246 0.8139 50 0.98 49
IV.IMI.HHE. 2019-09-09T03:12:25.55 0.3 undecidable manual P 212 0.7698 50 0.49 60
GU.CANO.HHZ. 2019-09-09T03:12:24.38 0.3 undecidable manual S 204 0.3912 50 -0.54 64
GU.GBOS.HHZ. 2019-09-09T03:12:21.09 0.3 undecidable manual P 234 0.5468 50 -0.17 68
GU.ROTM.HHZ. 2019-09-09T03:12:21.62 0.1 undecidable manual S 345 0.2923 102 0.17 95
GU.GORR.HHE. 2019-09-09T03:12:21.82 0.3 undecidable manual P 86 0.5963 50 -0.28 65
IV.QLNO.HHZ. 2019-09-09T03:12:20.00 0.1 undecidable manual S 198 0.2545 104 -0.03 98
GU.RORO.HHZ. 2019-09-09T03:12:20.72 0.3 undecidable manual P 212 0.5333 50 -0.29 66
IV.SARZ.HHE. 2019-09-09T03:12:19.88 0.3 undecidable manual P 47 0.4425 50 0.42 65
GU.CANO.HHZ. 2019-09-09T03:12:18.16 0.1 undecidable manual P 204 0.3912 50 -0.43 88
GU.ROTM.HHZ. 2019-09-09T03:12:16.54 0.1 undecidable manual P 345 0.2923 102 -0.05 97
GU.RNCA.HHZ. 2019-09-09T03:12:16.52 3.0 positive manual P -3.33 0
IV.QLNO.HHZ. 2019-09-09T03:12:15.80 0.1 positive manual P 198 0.2545 104 0.03 98
GU.PCP.HHE. 2019-09-09T03:12:13.35 0.1 undecidable manual S 112 0.0674 133 -0.13 100
IT.ACQ.HGZ. 2019-09-09T03:12:12.44 0.1 undecidable manual P 2 0.116 118 -0.43 93
GU.PCP.HHE. 2019-09-09T03:12:12.10 0.1 undecidable manual P 112 0.0674 133 0.12 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.QLNO.HHN. ML:1.4 0.00012 0.58 AML other m 2019-09-09T03:12:21.53
GU.ROTM.HHN. ML:2.3 0.0009865 0.2 AML other m 2019-09-09T03:12:21.99
GU.ROTM.HHE. ML:2.1 0.000567 0.22 AML other m 2019-09-09T03:12:21.88
IV.QLNO.HHE. ML:1.3 0.00010995 0.56 AML other m 2019-09-09T03:12:22.66
GU.CANO.HHN. ML:2.1 0.00043 0.2 AML other m 2019-09-09T03:12:25.22
GU.CANO.HHE. ML:1.7 0.0001665 0.64 AML other m 2019-09-09T03:12:25.95
GU.GBOS.HHN. ML:2 0.0002215 0.62 AML other m 2019-09-09T03:12:28.68
GU.GBOS.HHE. ML:1.3 4.66E-5 0.22 AML other m 2019-09-09T03:12:29.76
GU.PZZ.HHN. ML:1.7 4.285E-5 0.46 AML other m 2019-09-09T03:12:43.27
GU.PZZ.HHE. ML:1.6 4.005E-5 0.7 AML other m 2019-09-09T03:12:45.22
GU.RORO.HHN. ML:1.3 4.530395E-5 0.1008 AML other m 2019-09-09T03:12:30.86
GU.ENR.HHE. ML:1.4 3.051095E-5 0.0592 AML other m 2019-09-09T03:12:39.59
GU.ENR.HHN. ML:1.4 3.17694E-5 0.1008 AML other m 2019-09-09T03:12:38.92
GU.BHB.HHE. ML:1.5 3.426943E-5 0.16 AML other m 2019-09-09T03:12:41.65
GU.BHB.HHN. ML:1.4 2.4184405E-5 0.24 AML other m 2019-09-09T03:12:41.19
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