Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.5 on date 27-06-2021 and time 21:39:46 (Italy) in region 2 km S Coazzolo (AT)

A magnitude ML 1.5 earthquake occured in region: 2 km S Coazzolo (AT), on

  • 27-06-2021 19:39:46 (UTC)
  • 27-06-2021 21:39:46 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 44.7080, 8.1420 at 14 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.

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Municipalities within 20 km from the epicenter

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Coazzolo AT 2 302 302
Neviglie CN 3 382 684
Mango CN 3 1308 1992
Neive CN 3 3405 5397
Trezzo Tinella CN 4 331 5728
Camo CN 4 201 5929
Castiglione Tinella CN 4 895 6824
Treiso CN 5 820 7644
Barbaresco CN 5 658 8302
Castagnole delle Lanze AT 5 3798 12100
Cossano Belbo CN 6 958 13058
Santo Stefano Belbo CN 7 3984 17042
Calosso AT 8 1279 18321
Rocchetta Belbo CN 8 167 18488
Alba CN 8 31437 49925
Magliano Alfieri CN 9 2153 52078
Guarene CN 9 3596 55674
Benevello CN 9 474 56148
Borgomale CN 10 381 56529
Costigliole d'Asti AT 10 5914 62443
Loazzolo AT 10 359 62802
Castagnito CN 10 2163 64965
Cessole AT 10 403 65368
Vesime AT 10 622 65990
Castino CN 11 483 66473
Rodello CN 11 980 67453
Diano d'Alba CN 11 3570 71023
Priocca CN 11 2017 73040
Govone CN 11 2203 75243
Castellinaldo d'Alba CN 12 938 76181
Bosia CN 12 177 76358
Canelli AT 12 10485 86843
Montelupo Albese CN 12 529 87372
Lequio Berria CN 12 487 87859
Moasca AT 13 494 88353
San Martino Alfieri AT 13 666 89019
Agliano Terme AT 13 1642 90661
Cassinasco AT 13 611 91272
Bubbio AT 13 893 92165
Vezza d'Alba CN 13 2287 94452
Piobesi d'Alba CN 13 1288 95740
San Giorgio Scarampi AT 13 122 95862
San Marzano Oliveto AT 13 1047 96909
Perletto CN 13 292 97201
Roddi CN 13 1607 98808
Albaretto della Torre CN 14 242 99050
Grinzane Cavour CN 14 1995 101045
Isola d'Asti AT 14 2071 103116
Arguello CN 14 199 103315
Corneliano d'Alba CN 15 2118 105433
Cortemilia CN 15 2331 107764
Castelnuovo Calcea AT 15 759 108523
Cravanzana CN 15 411 108934
Montegrosso d'Asti AT 15 2344 111278
Cerretto Langhe CN 15 442 111720
Sinio CN 15 522 112242
Antignano AT 15 974 113216
San Damiano d'Asti AT 15 8315 121531
Canale CN 16 5686 127217
Serralunga d'Alba CN 16 564 127781
Castiglione Falletto CN 16 700 128481
Calamandrana AT 16 1761 130242
Monticello d'Alba CN 16 2292 132534
Olmo Gentile AT 16 80 132614
Torre Bormida CN 16 200 132814
Monastero Bormida AT 16 931 133745
Vigliano d'Asti AT 16 835 134580
Sessame AT 16 271 134851
Rocchetta Palafea AT 16 338 135189
Roccaverano AT 16 399 135588
Santa Vittoria d'Alba CN 16 2795 138383
Montaldo Scarampi AT 16 755 139138
Celle Enomondo AT 17 484 139622
Verduno CN 17 588 140210
Mongardino AT 17 921 141131
Revigliasco d'Asti AT 17 767 141898
Cisterna d'Asti AT 17 1245 143143
Mombercelli AT 17 2259 145402
Serravalle Langhe CN 18 315 145717
Roddino CN 18 400 146117
Vinchio AT 18 601 146718
Bergolo CN 18 71 146789
La Morra CN 18 2724 149513
Cissone CN 18 85 149598
Santo Stefano Roero CN 18 1390 150988
Feisoglio CN 18 316 151304
Montaldo Roero CN 18 844 152148
Monteu Roero CN 19 1634 153782
Montà CN 19 4733 158515
Nizza Monferrato AT 19 10429 168944
Vaglio Serra AT 19 275 169219
Bistagno AL 19 1887 171106
Baldissero d'Alba CN 19 1069 172175
Levice CN 19 231 172406
Sommariva Perno CN 19 2797 175203
Barolo CN 19 740 175943
Castel Boglione AT 19 609 176552
Pezzolo Valle Uzzone CN 19 344 176896
Denice AL 19 176 177072
Serole AT 19 123 177195
Monforte d'Alba CN 19 2056 179251
Montabone AT 20 333 179584
Ponti AL 20 606 180190

Municipalities with at least 50000 inhabitants

An earthquake occurred to
22 Km S of Asti (76202 inhabitants)
44 Km SW of Alessandria (93943 inhabitants)
49 Km SE of Moncalieri (57294 inhabitants)
52 Km NW of Savona (61345 inhabitants)
55 Km SE of Torino (890529 inhabitants)
58 Km NE of Cuneo (56081 inhabitants)
71 Km W of Genova (586655 inhabitants)
88 Km SW of Vigevano (63310 inhabitants)
91 Km SW of Novara (104380 inhabitants)
96 Km SW of Pavia (72576 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 2021-06-27
19:39:46		 44.7077 8.1418 14 2021-12-29
11:12:34		 Bollettino Sismico Italiano INGV 96102251
Reviewed
Rev100 		ML 1.6 2021-06-27
19:39:46		 44.7007 8.141 11 2021-06-27
19:51:01		 Sala Sismica INGV-Roma 91973121
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-06-27 19:39:46 ± 0.09
Latitude 44.7077 ± 0.0045
Longitude 8.1418 ± 0.0076
Depth (km) 14 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 96102251

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 549
Semi-minor axis of confidence ellipse (meter) 97
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 105
Circular confidence region, given by single value of horizontal uncertainty (meter) 550.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 74
Number of associated phases, regardless of their use for origin computation 39
Number of defining phases 39
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.35
Epicentral distance of station closest to the epicenter (degree) 0.20594
Epicentral distance of station farthest from the epicenter (degree) 1.61698
Number of stations at which the event was observed 20
Number of stations from which data was used for origin computation 20
Magnitudes information

ML:1.5

Field Value
Value 1.5
Uncertainty 0.2
Num. used stations 18
Type of magnitude ML
Reference to an origin 96102251
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2021-10-28 13:31:10

ML:1.6

Field Value
Value 1.6
Uncertainty 0.2
Num. used stations 14
Type of magnitude ML
Reference to an origin 91973121
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-06-27 19:51:01
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
RD.ORIF.BHE. 2021-06-27T19:40:36.52 1.0 undecidable manual S 278 179.487 54 0.58 15
IV.VARE.HHE. 2021-06-27T19:40:26.29 0.6 undecidable manual S 21 137.6622 91 0.83 33
GU.BURY.HNN. 2021-06-27T19:40:19.29 0.6 undecidable manual S 205 112.6983 92 0.51 39
GU.RRL.HHE. 2021-06-27T19:40:17.42 0.6 undecidable manual S 283 109.0131 92 -0.37 39
RD.ORIF.BHE. 2021-06-27T19:40:15.94 0.3 undecidable manual P 278 179.487 54 1 39
GU.TRAV.HHE. 2021-06-27T19:40:13.50 0.3 undecidable manual S 341 94.4388 92 -0.42 60
FR.SAOF.HHE.00 2021-06-27T19:40:13.19 0.6 undecidable manual S 210 92.7405 92 -0.26 42
GU.IMI.HHE. 2021-06-27T19:40:13.78 0.6 undecidable manual S 193 90.6426 92 0.89 35
GU.PZZ.HHZ. 2021-06-27T19:40:11.20 0.3 undecidable manual S 255 84.0492 92 0.06 68
GU.STV.HHE. 2021-06-27T19:40:10.62 0.3 undecidable manual S 232 82.4508 92 -0.1 66
IV.VARE.HHE. 2021-06-27T19:40:09.33 0.1 undecidable manual P 21 137.6622 91 0.45 75
GU.MGRO.HHZ. 2021-06-27T19:40:09.17 0.6 undecidable manual S 200 78.366 93 -0.46 41
GU.ENR.HHZ. 2021-06-27T19:40:09.22 0.6 undecidable manual S 227 78.0663 93 -0.33 42
GU.BHB.HHZ. 2021-06-27T19:40:06.84 0.3 undecidable manual S 282 70.6737 93 -0.72 56
GU.BURY.HNN. 2021-06-27T19:40:05.76 0.6 undecidable manual P 205 112.6983 92 0.74 36
GU.RORO.HHZ. 2021-06-27T19:40:05.80 0.3 undecidable manual S 185 66.2781 93 -0.61 60
GU.RRL.HHE. 2021-06-27T19:40:04.33 0.3 undecidable manual P 283 109.0131 92 -0.13 62
GU.CANO.HHZ. 2021-06-27T19:40:03.21 0.6 undecidable manual S 172 55.9995 94 -0.45 43
GU.CIRO.HHZ. 2021-06-27T19:40:03.69 0.6 undecidable manual P 336 108.9132 92 -0.75 34
GU.GBOS.HHZ. 2021-06-27T19:40:03.70 0.3 undecidable manual S 205 56.9985 94 -0.22 68
GU.TRAV.HHE. 2021-06-27T19:40:02.43 0.3 undecidable manual P 341 94.4388 92 0.21 65
FR.SAOF.HHE.00 2021-06-27T19:40:02.34 0.3 undecidable manual P 210 92.7405 92 0.4 62
GU.IMI.HHE. 2021-06-27T19:40:02.51 0.1 undecidable manual P 193 90.6426 92 0.88 70
GU.STV.HHE. 2021-06-27T19:40:00.71 0.3 undecidable manual P 232 82.4508 92 0.34 64
IV.QLNO.HHZ. 2021-06-27T19:40:00.40 0.3 undecidable manual S 159 45.5211 95 -0.47 66
GU.MGRO.HHZ. 2021-06-27T19:40:00.09 0.1 undecidable manual P 200 78.366 93 0.35 86
GU.PZZ.HHZ. 2021-06-27T19:40:00.60 0.1 undecidable manual P 255 84.0492 92 -0.01 89
IV.MONC.HHE. 2021-06-27T19:40:00.20 0.6 undecidable manual S 338 44.0226 95 -0.27 45
GU.ENR.HHZ. 2021-06-27T19:40:00.03 0.3 undecidable manual P 227 78.0663 93 0.34 65
GU.BHB.HHZ. 2021-06-27T19:39:58.28 0.3 undecidable manual P 282 70.6737 93 -0.27 65
GU.RORO.HHZ. 2021-06-27T19:39:57.90 0.3 undecidable manual P 185 66.2781 93 0.02 70
GU.PCP.HHE. 2021-06-27T19:39:57.75 0.3 undecidable manual S 120 36.8298 97 -0.82 58
GU.CANO.HHZ. 2021-06-27T19:39:56.24 0.1 undecidable manual P 172 55.9995 94 -0.06 94
GU.GBOS.HHZ. 2021-06-27T19:39:56.62 0.3 undecidable manual P 205 56.9985 94 0.17 70
GU.ROTM.HHZ. 2021-06-27T19:39:55.30 0.3 undecidable manual S 46 22.8549 105 0.4 71
IV.QLNO.HHZ. 2021-06-27T19:39:54.69 0.1 undecidable manual P 159 45.5211 95 0 97
IV.MONC.HHE. 2021-06-27T19:39:54.06 0.6 undecidable manual P 338 44.0226 95 -0.39 44
GU.PCP.HHE. 2021-06-27T19:39:52.97 0.1 undecidable manual P 120 36.8298 97 -0.39 91
GU.ROTM.HHZ. 2021-06-27T19:39:51.21 0.1 undecidable manual P 46 22.8549 105 -0.02 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
GU.ROTM.HHN. ML:1.9 0.000496 0.74 AML other m 2021-06-27T19:39:55.48
GU.ROTM.HHE. ML:1.7 0.00032599999999999996 0.54 AML other m 2021-06-27T19:39:59.94
IV.QLNO.HHE. ML:1.5 0.00009355 1.38 AML other m 2021-06-27T19:40:00.76
IV.QLNO.HHN. ML:1.3 0.00005855000000000001 0.22 AML other m 2021-06-27T19:40:01.59
GU.CANO.HHE. ML:1.8 0.000133 0.74 AML other m 2021-06-27T19:40:04.82
GU.GBOS.HHN. ML:1.4 0.000051756595000000005 0.1408 AML other m 2021-06-27T19:40:04.47
GU.CANO.HHN. ML:1.8 0.00014950000000000003 0.24 AML other m 2021-06-27T19:40:04.65
GU.GBOS.HHE. ML:1.4 0.000056358805 0.1152 AML other m 2021-06-27T19:40:04.71
GU.RORO.HHE. ML:1.2 0.000027850749499999996 0.1664 AML other m 2021-06-27T19:40:06.10
GU.RORO.HHN. ML:1.2 0.000030937195 0.128 AML other m 2021-06-27T19:40:07.22
GU.BHB.HHE. ML:1.6 0.00006104999999999999 1.18 AML other m 2021-06-27T19:40:08.38
GU.BHB.HHN. ML:1.6 0.00007095 0.56 AML other m 2021-06-27T19:40:08.65
GU.MGRO.HHE. ML:1.5 0.00004705 1.04 AML other m 2021-06-27T19:40:10.07
GU.ENR.HHE. ML:1.6 0.000059449999999999995 0.72 AML other m 2021-06-27T19:40:11.77
GU.ENR.HHN. ML:1.8 0.00008334999999999999 0.12 AML other m 2021-06-27T19:40:11.64
GU.PZZ.HHN. ML:1.3 0.0000264 0.36 AML other m 2021-06-27T19:40:11.42
GU.PZZ.HHE. ML:1.4 0.000030100000000000003 0.26 AML other m 2021-06-27T19:40:11.85
GU.MGRO.HHN. ML:1.2 0.000027249999999999998 1.12 AML other m 2021-06-27T19:40:12.08
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