Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 2.1 on date 06-05-2018 and time 09:22:14 (Italy) in region 1 km E Carpeneto (AL)

A magnitude ML 2.1 earthquake occured in region: 1 km E Carpeneto (AL), on

  • 06-05-2018 07:22:14 (UTC)
  • 06-05-2018 09:22:14 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 44.6770, 8.6220 at 43 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
Carpeneto AL 1 977 977
Rocca Grimalda AL 2 1512 2489
Montaldo Bormida AL 3 664 3153
Trisobbio AL 3 655 3808
Silvano d'Orba AL 4 1988 5796
Ovada AL 5 11477 17273
Orsara Bormida AL 5 424 17697
Cremolino AL 5 1086 18783
Tagliolo Monferrato AL 6 1581 20364
Morsasco AL 6 679 21043
Molare AL 6 2181 23224
Castelletto d'Orba AL 7 2047 25271
Belforte Monferrato AL 7 515 25786
Prasco AL 7 521 26307
Rivalta Bormida AL 7 1446 27753
Capriata d'Orba AL 8 1904 29657
Strevi AL 8 2019 31676
Lerma AL 9 869 32545
Montaldeo AL 9 265 32810
Predosa AL 9 2048 34858
Cassinelle AL 9 914 35772
Visone AL 10 1194 36966
Castelnuovo Bormida AL 10 694 37660
Casaleggio Boiro AL 10 372 38032
San Cristoforo AL 10 608 38640
Parodi Ligure AL 11 715 39355
Cassine AL 11 2961 42316
Francavilla Bisio AL 11 531 42847
Mornese AL 12 737 43584
Grognardo AL 12 259 43843
Morbello AL 12 402 44245
Acqui Terme AL 12 19896 64141
Basaluzzo AL 12 2087 66228
Sezzadio AL 13 1246 67474
Fresonara AL 13 731 68205
Tassarolo AL 13 672 68877
Pasturana AL 13 1318 70195
Rossiglione GE 13 2779 72974
Ricaldone AL 14 684 73658
Bosio AL 14 1227 74885
Cavatore AL 14 291 75176
Gavi AL 15 4614 79790
Alice Bel Colle AL 15 766 80556
Castelspina AL 15 416 80972
Maranzana AT 15 277 81249
Terzo AL 16 923 82172
Melazzo AL 16 1325 83497
Quaranti AT 16 183 83680
Gamalero AL 16 844 84524
Novi Ligure AL 16 28154 112678
Ponzone AL 16 1051 113729
Campo Ligure GE 17 2955 116684
Carrosio AL 17 510 117194
Bosco Marengo AL 17 2457 119651
Tiglieto GE 17 546 120197
Castel Rocchero AT 17 395 120592
Castelletto Molina AT 17 180 120772
Mombaruzzo AT 17 1117 121889
Casal Cermelli AL 18 1234 123123
Fontanile AT 18 567 123690
Frascaro AL 18 440 124130
Pozzolo Formigaro AL 18 4775 128905
Montabone AT 18 333 129238
Cartosio AL 19 747 129985
Voltaggio AL 19 738 130723
Frugarolo AL 19 1968 132691
Castelletto d'Erro AL 19 148 132839
Borgoratto Alessandrino AL 19 584 133423
Bruno AT 19 321 133744
Castellazzo Bormida AL 19 4570 138314
Serravalle Scrivia AL 19 6128 144442
Castel Boglione AT 20 609 145051

Municipalities with at least 50000 inhabitants

An earthquake occurred to
26 Km S of Alessandria (93943 inhabitants)
38 Km NW of Genova (586655 inhabitants)
41 Km SE of Asti (76202 inhabitants)
43 Km N of Savona (61345 inhabitants)
71 Km SW of Pavia (72576 inhabitants)
74 Km S of Vigevano (63310 inhabitants)
82 Km E of Moncalieri (57294 inhabitants)
86 Km S of Novara (104380 inhabitants)
86 Km SE of Torino (890529 inhabitants)
91 Km E of Cuneo (56081 inhabitants)
94 Km W of Piacenza (102191 inhabitants)
99 Km SW of Milano (1345851 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 2.1 2018-05-06
07:22:14		 44.6772 8.6222 43 2019-04-24
14:50:43		 Bollettino Sismico Italiano INGV 57499871
Reviewed
Rev100 		ML 2.0 2018-05-06
07:22:14		 44.6633 8.6047 43 2018-05-06
07:50:38		 Sala Sismica INGV-Roma 56544171
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2018-05-06 07:22:14 ± 0.12
Latitude 44.6772 ± 0.0099
Longitude 8.6222 ± 0.0101
Depth (km) 43 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 57499871

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1029
Semi-minor axis of confidence ellipse (meter) 380
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 338
Circular confidence region, given by single value of horizontal uncertainty (meter) 1030.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 71
Number of associated phases, regardless of their use for origin computation 49
Number of defining phases 29
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.33
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 1.53874
Number of stations at which the event was observed 38
Number of stations from which data was used for origin computation 20
Magnitudes information

ML:2.1

Field Value
Value 2.1
Uncertainty 0.3
Num. used stations 38
Type of magnitude ML
Reference to an origin 57499871
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2018-10-09 16:09:22

ML:2.0

Field Value
Value 2.0
Uncertainty 0.3
Num. used stations 44
Type of magnitude ML
Reference to an origin 56544171
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2018-05-06 07:50:38
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.SNTG.HHZ. 2018-05-06T07:24:03.56 3.0 undecidable manual Sg 19.01 0
IV.MRB1.HHZ. 2018-05-06T07:23:54.45 3.0 negative manual Pg 16.01 0
IV.PE3.EHZ. 2018-05-06T07:23:40.15 3.0 undecidable manual Sn 7.2 0
IV.PTRJ.HHZ. 2018-05-06T07:23:33.24 3.0 undecidable manual Pn 0.44 0
IV.ARRO.EHZ. 2018-05-06T07:23:24.50 3.0 positive manual Pg 16.25 0
SI.LUSI.HHZ. 2018-05-06T07:23:09.48 3.0 undecidable manual Sn -1.34 0
ST.VARA.EHZ. 2018-05-06T07:23:07.51 3.0 undecidable manual Sn -0.77 0
IV.SBPO.HNZ. 2018-05-06T07:23:07.88 3.0 undecidable manual Sg 6.6 0
IV.MABI.HHZ. 2018-05-06T07:23:05.93 3.0 undecidable manual Sn -0.89 0
IV.CTI.HHZ. 2018-05-06T07:22:53.07 3.0 positive manual Pn 0.9 0
ST.PANI.EHZ. 2018-05-06T07:22:50.15 3.0 undecidable manual Pn 0.5 0
RD.PGF.BHZ. 2018-05-06T07:22:47.84 3.0 undecidable manual Pn 0.07 0
ST.DOSS.HHZ. 2018-05-06T07:22:47.74 3.0 positive manual Pn 0.52 0
SI.LUSI.HHZ. 2018-05-06T07:22:46.24 3.0 negative manual Pn 0.34 0
ST.VARA.EHZ. 2018-05-06T07:22:45.07 3.0 undecidable manual Pn 0.6 0
ST.RONC.EHZ. 2018-05-06T07:22:44.51 3.0 positive manual Pn 0.81 0
CH.FUSIO.HHZ. 2018-05-06T07:22:41.60 3.0 positive manual Pn -0.15 0
IV.PII.HHZ. 2018-05-06T07:22:41.21 3.0 negative manual Pn 0.32 0
GU.MAIM.HHZ. 2018-05-06T07:22:39.50 1.0 undecidable manual P 119 170.7957 92 -0.24 18
GU.GBOS.HHZ. 2018-05-06T07:22:38.60 0.6 undecidable manual S 232 78.5658 98 0.07 45
IV.MSSA.HHZ. 2018-05-06T07:22:38.90 0.3 undecidable manual S 119 81.3519 97 -0.23 67
GU.RORO.HHE. 2018-05-06T07:22:37.90 0.3 undecidable manual S 215 76.6677 98 -0.22 69
CH.MMK.HHN. 2018-05-06T07:22:36.43 0.6 undecidable manual P 342 160.7169 92 -2.06 14
CH.MUGIO.HHN. 2018-05-06T07:22:34.86 0.6 undecidable manual P 13 141.9468 93 -1.28 25
GU.EQUI.HHZ. 2018-05-06T07:22:34.94 0.6 undecidable manual P 115 133.866 93 -0.2 40
GU.CANO.HHE. 2018-05-06T07:22:34.30 0.6 undecidable manual S 210 60.3951 104 -0.38 45
GU.GORR.HHZ. 2018-05-06T07:22:33.60 0.6 undecidable manual S 98 53.502 109 0.34 46
IV.VARE.HHN. 2018-05-06T07:22:33.91 0.6 undecidable manual P 5 132.5673 93 -1.07 29
IV.PLMA.HHZ. 2018-05-06T07:22:33.42 0.6 undecidable manual P 125 119.8911 94 0.01 42
FR.SAOF.HHZ.00 2018-05-06T07:22:33.06 0.6 undecidable manual P 228 114.2967 94 0.34 40
GU.ENR.HHZ. 2018-05-06T07:22:32.18 0.3 undecidable manual P 243 107.5146 94 0.31 61
GU.BHB.HHZ. 2018-05-06T07:22:32.62 3.0 undecidable manual P 0
IV.QLNO.HHZ. 2018-05-06T07:22:31.50 0.1 undecidable manual S 209 44.8218 117 -0.04 99
GU.RNCA.HHZ. 2018-05-06T07:22:30.40 0.3 undecidable manual S 131 34.6431 128 0.72 63
GU.ROTM.HHZ. 2018-05-06T07:22:29.20 0.3 undecidable manual S 312 28.5492 135 0.5 71
GU.GBOS.HHZ. 2018-05-06T07:22:28.55 0.6 undecidable manual P 232 78.5658 98 0.27 44
IV.MSSA.HHZ. 2018-05-06T07:22:28.47 0.1 undecidable manual P 119 81.3519 97 -0.16 91
IV.MONC.HHN. 2018-05-06T07:22:27.84 0.1 positive manual P 309 70.1742 100 0.59 83
GU.RORO.HHE. 2018-05-06T07:22:27.80 0.6 undecidable manual P 215 76.6677 98 -0.25 45
IV.BOB.HNE. 2018-05-06T07:22:26.88 0.6 undecidable manual P 81 65.8896 102 0.15 46
GU.PCP.HHZ. 2018-05-06T07:22:26.68 0.3 undecidable manual S 202 16.2726 153 -0.47 69
GU.GORR.HHZ. 2018-05-06T07:22:25.31 0.1 undecidable manual P 98 53.502 109 0.07 96
GU.CANO.HHE. 2018-05-06T07:22:25.89 0.3 undecidable manual P 210 60.3951 104 -0.17 71
IV.QLNO.HHZ. 2018-05-06T07:22:24.23 0.1 undecidable manual P 209 44.8218 117 -0.02 99
IV.SARZ.HHN. 2018-05-06T07:22:23.14 0.6 undecidable manual P 47 31.1466 132 0.3 49
GU.RNCA.HHZ. 2018-05-06T07:22:23.42 0.1 undecidable manual P 131 34.6431 128 0.25 96
GU.ROTM.HHZ. 2018-05-06T07:22:22.58 0.1 undecidable manual P 312 28.5492 135 -0.03 100
GU.PCP.HHZ. 2018-05-06T07:22:21.35 0.3 undecidable manual P 202 16.2726 153 -0.36 72
GU.EUCT.HNZ. 2018-05-06T07:21:53.08 3.0 undecidable manual P 0
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
CH.MUGIO.HHN. ML:1.8 0.000028049999999999997 0.96 AML other m 2018-05-06T07:22:52.38
GU.PCP.HHN. ML:2.0 0.000299174065 0.1408 AML other m 2018-05-06T07:22:26.79
GU.ROTM.HHE. ML:2.7 0.0014265861500000001 0.24 AML other m 2018-05-06T07:22:29.59
GU.RNCA.HHN. ML:1.8 0.000156769245 0.16 AML other m 2018-05-06T07:22:30.70
IV.QLNO.HHN. ML:2.3 0.00038250000000000003 0.28 AML other m 2018-05-06T07:22:31.68
IV.QLNO.HHE. ML:2.1 0.00026573970000000005 0.2176 AML other m 2018-05-06T07:22:31.84
GU.GORR.HHN. ML:2.7 0.0008411598499999999 0.4832 AML other m 2018-05-06T07:22:34.19
GU.GORR.HHE. ML:2.2 0.0002955448 0.16 AML other m 2018-05-06T07:22:35.25
GU.CANO.HHE. ML:2.5 0.0005281156499999999 0.3616 AML other m 2018-05-06T07:22:35.63
GU.CANO.HHN. ML:2.6 0.0005668138 0.16 AML other m 2018-05-06T07:22:35.95
GU.RORO.HHN. ML:2.0 0.000112805175 0.1408 AML other m 2018-05-06T07:22:39.26
IV.MONC.HHE. ML:2.5 0.0003852435 0.4 AML other m 2018-05-06T07:22:39.55
GU.RORO.HHE. ML:2.0 0.00010938876 0.1792 AML other m 2018-05-06T07:22:39.70
GU.GBOS.HHN. ML:1.7 0.00005628405 0.3392 AML other m 2018-05-06T07:22:39.93
IV.MONC.HHN. ML:2.4 0.0003261218 0.2784 AML other m 2018-05-06T07:22:41.37
GU.GBOS.HHE. ML:1.6 0.000052275925 0.4192 AML other m 2018-05-06T07:22:41.90
IV.MSSA.HHE. ML:1.8 0.00006793718 0.6176 AML other m 2018-05-06T07:22:44.00
IV.MSSA.HHN. ML:1.8 0.00006947313 0.5792 AML other m 2018-05-06T07:22:45.47
GU.ENR.HHE. ML:1.9 0.00006215592 0.0384 AML other m 2018-05-06T07:22:45.96
CH.MUGIO.HHE. ML:1.7 0.0000241 0.1 AML other m 2018-05-06T07:22:51.41
GU.PCP.HHE. ML:2.2 0.0004464884 0.32 AML other m 2018-05-06T07:22:26.72
GU.ROTM.HHN. ML:2.8 0.001734456 0.2176 AML other m 2018-05-06T07:22:29.38
GU.ENR.HHN. ML:2.1 0.00009238726499999999 0.1408 AML other m 2018-05-06T07:22:45.37
GU.BHB.HHE. ML:2.0 0.00008456422999999999 0.24 AML other m 2018-05-06T07:22:47.79
GU.BHB.HHN. ML:2.1 0.00009944645500000001 0.3616 AML other m 2018-05-06T07:22:46.51
FR.SAOF.HHE.00 ML:1.5 0.000023771090000000003 0.3392 AML other m 2018-05-06T07:22:52.26
FR.SAOF.HHN.00 ML:1.6 0.000027759455 0.3808 AML other m 2018-05-06T07:22:49.33
IV.PLMA.HHE. ML:1.6 0.000032315685 0.2016 AML other m 2018-05-06T07:22:47.56
IV.PLMA.HHN. ML:1.6 0.00002816638 0.1984 AML other m 2018-05-06T07:22:46.57
IV.VARE.HHE. ML:1.8 0.000041743064999999994 0.1184 AML other m 2018-05-06T07:22:48.36
ST.RONC.EHN. ML:2.5 0.0000772264 0.1408 AML other m 2018-05-06T07:23:08.29
ST.RONC.EHE. ML:2.4 0.000071155865 0.1408 AML other m 2018-05-06T07:23:06.92
SI.LUSI.HHE. ML:2.1 0.00002637168 0.1184 AML other m 2018-05-06T07:23:09.97
SI.LUSI.HHN. ML:2.3 0.000041749864999999996 0.16 AML other m 2018-05-06T07:23:10.99
ST.DOSS.HHE. ML:2.1 0.00002253652 0.1792 AML other m 2018-05-06T07:23:14.00
ST.DOSS.HHN. ML:2.0 0.0000200539705 0.2208 AML other m 2018-05-06T07:23:14.07
IV.CTI.HHN. ML:2.5 0.000046334925 0.2592 AML other m 2018-05-06T07:23:23.01
IV.CTI.HHE. ML:2.5 0.000043270025000000006 0.1984 AML other m 2018-05-06T07:23:23.75
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
Waveforms Seismic signals in miniseed + resp format Download