INGVCENTRO​NAZIONALE​TERREMOTI
Sala Sismica

Earthquake with magnitude of ML 1.3 on date 25-09-2018 and time 18:13:33 (Italy) in region 2 km SE Castagnole delle Lanze (AT)

A magnitude ML 1.3 earthquake occured in region: 2 km SE Castagnole delle Lanze (AT), on

  • 25-09-2018 16:13:33 (UTC)
  • 25-09-2018 18:13:33 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 44.74, 8.16 at 22 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
Castagnole delle Lanze AT 2 3798 3798
Coazzolo AT 2 302 4100
Castiglione Tinella CN 3 895 4995
Neive CN 4 3405 8400
Costigliole d'Asti AT 6 5914 14314
Calosso AT 6 1279 15593
Camo CN 6 201 15794
Barbaresco CN 6 658 16452
Neviglie CN 6 382 16834
Mango CN 6 1308 18142
Santo Stefano Belbo CN 7 3984 22126
Magliano Alfieri CN 7 2153 24279
Treiso CN 8 820 25099
Trezzo Tinella CN 8 331 25430
Govone CN 8 2203 27633
Cossano Belbo CN 9 958 28591
Priocca CN 9 2017 30608
Agliano Terme AT 9 1642 32250
San Martino Alfieri AT 9 666 32916
Guarene CN 10 3596 36512
Isola d'Asti AT 10 2071 38583
Moasca AT 10 494 39077
Castagnito CN 10 2163 41240
Alba CN 11 31437 72677
Castellinaldo d'Alba CN 11 938 73615
Canelli AT 11 10485 84100
Montegrosso d'Asti AT 11 2344 86444
San Marzano Oliveto AT 11 1047 87491
Loazzolo AT 12 359 87850
Castelnuovo Calcea AT 12 759 88609
Antignano AT 12 974 89583
Rocchetta Belbo CN 12 167 89750
Vigliano d'Asti AT 12 835 90585
Cessole AT 13 403 90988
San Damiano d'Asti AT 13 8315 99303
Montaldo Scarampi AT 13 755 100058
Vezza d'Alba CN 13 2287 102345
Mongardino AT 13 921 103266
Celle Enomondo AT 13 484 103750
Revigliasco d'Asti AT 13 767 104517
Vesime AT 13 622 105139
Cassinasco AT 13 611 105750
Benevello CN 13 474 106224
Borgomale CN 14 381 106605
Mombercelli AT 14 2259 108864
Piobesi d'Alba CN 14 1288 110152
Bubbio AT 14 893 111045
Castino CN 14 483 111528
Diano d'Alba CN 14 3570 115098
Canale CN 14 5686 120784
Calamandrana AT 14 1761 122545
Rodello CN 15 980 123525
Vinchio AT 15 601 124126
Cisterna d'Asti AT 15 1245 125371
Corneliano d'Alba CN 15 2118 127489
Rocchetta Palafea AT 16 338 127827
Bosia CN 16 177 128004
Vaglio Serra AT 16 275 128279
Roddi CN 16 1607 129886
Montelupo Albese CN 16 529 130415
Lequio Berria CN 16 487 130902
San Giorgio Scarampi AT 16 122 131024
Nizza Monferrato AT 16 10429 141453
Grinzane Cavour CN 17 1995 143448
Perletto CN 17 292 143740
Sessame AT 17 271 144011
Belveglio AT 17 350 144361
Monastero Bormida AT 17 931 145292
Monticello d'Alba CN 17 2292 147584
Azzano d'Asti AT 17 391 147975
Montà CN 17 4733 152708
Tigliole AT 17 1699 154407
Albaretto della Torre CN 18 242 154649
Santo Stefano Roero CN 18 1390 156039
Rocca d'Arazzo AT 18 936 156975
Asti AT 18 76202 233177
Castel Boglione AT 18 609 233786
Arguello CN 18 199 233985
Cortemilia CN 18 2331 236316
Monteu Roero CN 18 1634 237950
Santa Vittoria d'Alba CN 18 2795 240745
Cortiglione AT 18 571 241316
Montaldo Roero CN 19 844 242160
Olmo Gentile AT 19 80 242240
Cravanzana CN 19 411 242651
Roccaverano AT 19 399 243050
Baldissero d'Alba CN 19 1069 244119
Sinio CN 19 522 244641
Baldichieri d'Asti AT 19 1110 245751
Bistagno AL 19 1887 247638
Montabone AT 19 333 247971
Castiglione Falletto CN 19 700 248671
Cerretto Langhe CN 19 442 249113
Serralunga d'Alba CN 19 564 249677
Incisa Scapaccino AT 19 2288 251965
Verduno CN 19 588 252553
Ferrere AT 19 1608 254161
Castello di Annone AT 20 1860 256021
Sommariva Perno CN 20 2797 258818
Rocchetta Tanaro AT 20 1450 260268
Torre Bormida CN 20 200 260468

Municipalities with at least 50000 inhabitants

An earthquake occurred to
18 Km S of Asti (76202 inhabitants)
41 Km W of Alessandria (93943 inhabitants)
47 Km SE of Moncalieri (57294 inhabitants)
53 Km SE of Torino (890529 inhabitants)
55 Km NW of Savona (61345 inhabitants)
62 Km NE of Cuneo (56081 inhabitants)
72 Km NW of Genova (586655 inhabitants)
85 Km SW of Vigevano (63310 inhabitants)
86 Km SW of Novara (104380 inhabitants)
93 Km SW of Pavia (72576 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 1.3 2018-09-25
16:13:33
44.74 8.16 22 2018-09-25
16:30:22
Sala Sismica INGV-Roma 61304071
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2018-09-25 16:13:33 ± 0.22
Latitude 44.74 ± 0.01
Longitude 8.16 ± 0.01
Depth (km) 22 ± 3 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 61304071

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 884
Semi-minor axis of confidence ellipse (meter) 867
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 63
Circular confidence region, given by single value of horizontal uncertainty (meter) 880
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 134
Number of associated phases, regardless of their use for origin computation 31
Number of defining phases 16
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.27
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 1.20419
Number of stations at which the event was observed 23
Number of stations from which data was used for origin computation 10
Magnitude information

ML:1.3

Field Value
Value 1.3
Uncertainty 0.3
Num. used stations 14
Type of magnitude ML
Reference to an origin 61304071
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2018-09-25 16:30:22
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.RMP.HHZ. 2018-09-25T16:15:28.49 3.0 undecidable manual Sn -1.49 0
IV.SALB.HHZ. 2018-09-25T16:15:27.70 3.0 undecidable manual Pn 2.71 0
IV.PTRJ.HNZ. 2018-09-25T16:15:18.45 3.0 undecidable manual Pg 21.190001 0
IV.PAOL.HHZ. 2018-09-25T16:15:04.20 3.0 undecidable manual Pn 3.76 0
IV.POFI.HHZ. 2018-09-25T16:15:02.86 3.0 negative manual Pg 15.25 0
IV.IMOL.HNZ. 2018-09-25T16:14:58.22 3.0 undecidable manual Sg 12.54 0
IV.MODR.HHZ. 2018-09-25T16:14:57.94 3.0 undecidable manual Pn 3.96 0
CH.BERNI.HHZ. 2018-09-25T16:14:41.82 3.0 undecidable manual Sg 6.84 0
IV.FIAM.HHZ. 2018-09-25T16:14:40.34 3.0 positive manual Pn 2.15 0
IV.BORM.HNZ. 2018-09-25T16:14:37.92 3.0 undecidable manual Sn -1.98 0
TV.SF04.EHZ. 2018-09-25T16:14:27.95 3.0 positive manual Pn 6.29 0
IV.IMOL.HNZ. 2018-09-25T16:14:27.09 3.0 positive manual Pg 13.14 0
IV.VARE.HHZ. 2018-09-25T16:14:13.93 0.1 undecidable manual P 1.2042 1.812 0
CH.BERNI.HHZ. 2018-09-25T16:14:06.87 3.0 undecidable manual Pn -1.07 0
IV.ZONE.HHZ. 2018-09-25T16:14:02.80 3.0 undecidable manual Pn 0.46 0
GU.ENR.HHZ. 2018-09-25T16:13:58.48 0.6 undecidable manual S 226 0.7356 99 0.29 42
GU.CANO.HHZ. 2018-09-25T16:13:52.31 0.6 undecidable manual S 174 0.5378 103 -0.12 46
GU.GBOS.HHZ. 2018-09-25T16:13:52.52 0.6 undecidable manual S 204 0.5495 102 -0.24 44
IV.QLNO.HHZ. 2018-09-25T16:13:49.58 0.6 undecidable manual S 162 0.4398 106 -0.03 47
IV.IMI.HHZ. 2018-09-25T16:13:48.26 3.0 undecidable manual P -1.16 0
GU.STV.HHZ. 2018-09-25T16:13:48.74 0.1 undecidable manual P 230 0.7725 98 0.26 84
GU.PZZ.HHZ. 2018-09-25T16:13:48.42 0.1 undecidable manual P 253 0.777 98 -0.12 87
GU.ENR.HHZ. 2018-09-25T16:13:48.16 0.1 undecidable manual P 226 0.7356 99 0.31 83
GU.PCP.HHZ. 2018-09-25T16:13:46.69 0.6 undecidable manual S 126 0.3417 112 -0.18 47
GU.BHB.HHZ. 2018-09-25T16:13:45.80 0.1 undecidable manual P 279 0.6403 100 -0.43 83
GU.GBOS.HHZ. 2018-09-25T16:13:44.82 0.1 undecidable manual P 204 0.5495 102 0.11 91
GU.CANO.HHZ. 2018-09-25T16:13:44.68 0.1 undecidable manual P 174 0.5378 103 0.16 90
IV.QLNO.HHZ. 2018-09-25T16:13:42.25 0.1 undecidable manual P 162 0.4398 106 -0.64 81
GU.ROTM.HHZ. 2018-09-25T16:13:42.77 0.6 undecidable manual S 53 0.1754 132 0.15 49
GU.PCP.HHZ. 2018-09-25T16:13:41.63 0.1 undecidable manual P 126 0.3417 112 0.32 91
GU.ROTM.HHZ. 2018-09-25T16:13:38.89 0.1 undecidable manual P 53 0.1754 132 0.03 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
GU.ENR.HHN. ML:1.3 2.6677015E-5 0.0768 AML other m 2018-09-25T16:13:59.60
GU.CANO.HHN. ML:1.8 0.0001196 0.24 AML other m 2018-09-25T16:13:53.57
GU.ROTM.HHN. ML:2 0.00049202075 0.2304 AML other m 2018-09-25T16:13:42.93
GU.PCP.HHE. ML:1 2.8586438E-5 0.2048 AML other m 2018-09-25T16:13:47.39
GU.PCP.HHN. ML:1 3.41183E-5 2.24 AML other m 2018-09-25T16:13:48.40
IV.QLNO.HHE. ML:1.1 3.2364249E-5 0.1024 AML other m 2018-09-25T16:13:50.32
IV.QLNO.HHN. ML:1.1 2.9339523E-5 0.1664 AML other m 2018-09-25T16:13:50.08
GU.CANO.HHE. ML:1.9 0.000163 1.28 AML other m 2018-09-25T16:13:53.80
GU.GBOS.HHN. ML:1.2 2.8651528E-5 1.5104 AML other m 2018-09-25T16:13:53.42
GU.GBOS.HHE. ML:1.1 2.3114311E-5 0.5248 AML other m 2018-09-25T16:13:53.16
GU.BHB.HHN. ML:1.1 2.16814805E-5 0.1664 AML other m 2018-09-25T16:13:56.05
GU.BHB.HHE. ML:1.1 2.1351888E-5 0.1408 AML other m 2018-09-25T16:13:56.06
GU.ENR.HHE. ML:1.4 3.038182E-5 0.1664 AML other m 2018-09-25T16:13:58.84
GU.ROTM.HHE. ML:1.7 0.0002493531 0.8448 AML other m 2018-09-25T16:13:43.46
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