Earthquake with magnitude of Md 4.0 on date 18-07-2001 and time 22:47:11 (UTC) in region 2 km W Quargnento (AL)

A magnitude Md 4.0 earthquake occured in region: 2 km W Quargnento (AL), on

  • 18-07-2001 22:47:11 (UTC)
  • 19-07-2001 00:47:11 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 44.94, 8.47 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
Quargnento AL 2 1398 1398
Fubine AL 4 1653 3051
Solero AL 4 1645 4696
Felizzano AL 5 2344 7040
Cuccaro Monferrato AL 6 340 7380
Quattordio AL 7 1637 9017
Lu AL 7 1122 10139
Conzano AL 9 979 11118
Camagna Monferrato AL 9 528 11646
Altavilla Monferrato AL 9 468 12114
Castelletto Monferrato AL 9 1537 13651
Masio AL 9 1420 15071
Oviglio AL 9 1265 16336
Viarigi AT 9 929 17265
Vignale Monferrato AL 9 1006 18271
Refrancore AT 10 1591 19862
San Salvatore Monferrato AL 10 4299 24161
Cerro Tanaro AT 11 626 24787
Mirabello Monferrato AL 11 1374 26161
Frassinello Monferrato AL 12 502 26663
Montemagno AT 12 1153 27816
Alessandria AL 12 93943 121759
Carentino AL 13 340 122099
Castagnole Monferrato AT 13 1245 123344
Bergamasco AL 13 744 124088
Olivola AL 13 122 124210
Borgoratto Alessandrino AL 13 584 124794
Rocchetta Tanaro AT 13 1450 126244
Occimiano AL 14 1319 127563
Casorzo AT 14 633 128196
Frascaro AL 14 440 128636
Castello di Annone AT 14 1860 130496
Castellazzo Bormida AL 14 4570 135066
Grana AT 15 600 135666
Scurzolengo AT 15 555 136221
Giarole AL 16 718 136939
Ottiglio AL 16 629 137568
Cortiglione AT 16 571 138139
Terruggia AL 16 936 139075
Cella Monte AL 16 495 139570
Gamalero AL 16 844 140414
Rocca d'Arazzo AT 16 936 141350
Grazzano Badoglio AT 16 615 141965
Castelnuovo Belbo AT 16 895 142860
Rosignano Monferrato AL 16 1568 144428
Pietra Marazzi AL 16 904 145332
Incisa Scapaccino AT 16 2288 147620
Portacomaro AT 16 2006 149626
Belveglio AT 16 350 149976
Valenza AL 16 19178 169154
Bruno AT 17 321 169475
Sala Monferrato AL 17 352 169827
Pomaro Monferrato AL 17 355 170182
Borgo San Martino AL 17 1428 171610
Pecetto di Valenza AL 17 1267 172877
Casal Cermelli AL 17 1234 174111
Azzano d'Asti AT 17 391 174502
Montecastello AL 18 321 174823
Bozzole AL 18 319 175142
Calliano AT 18 1317 176459
Castelspina AL 18 416 176875
Ticineto AL 19 1371 178246
San Giorgio Monferrato AL 19 1265 179511
Vaglio Serra AT 19 275 179786
Vinchio AT 19 601 180387
Ozzano Monferrato AL 19 1436 181823
Mombaruzzo AT 19 1117 182940
Treville AL 19 281 183221
Mombercelli AT 19 2259 185480
Sezzadio AL 19 1246 186726
Penango AT 20 488 187214
Cereseto AL 20 437 187651
Valmacca AL 20 1021 188672
Moncalvo AT 20 3033 191705

Municipalities with at least 50000 inhabitants

An earthquake occurred to
12 Km W of Alessandria (93943 inhabitants)
21 Km E of Asti (76202 inhabitants)
52 Km SW of Vigevano (63310 inhabitants)
57 Km S of Novara (104380 inhabitants)
61 Km W of Pavia (72576 inhabitants)
62 Km E of Moncalieri (57294 inhabitants)
63 Km E of Torino (890529 inhabitants)
70 Km NW of Genova (586655 inhabitants)
71 Km N of Savona (61345 inhabitants)
79 Km SW of Rho (50434 inhabitants)
81 Km SW of Legnano (60262 inhabitants)
81 Km SW of Busto Arsizio (83106 inhabitants)
82 Km SW of Milano (1345851 inhabitants)
84 Km SW of Gallarate (53343 inhabitants)
89 Km SW of Sesto San Giovanni (81608 inhabitants)
90 Km SW of Cinisello Balsamo (75078 inhabitants)
95 Km NE of Cuneo (56081 inhabitants)
95 Km SW of Monza (122671 inhabitants)
97 Km W 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
Rev 1000 Md 4.0
ML-MEDNET 4.2
2001-07-18
22:47:11
44.94 8.47 10 2013-07-15
08:40:51
Bollettino Sismico Italiano INGV 424269
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2001-07-18 22:47:11 ± 0.49
Latitude 44.94 ± 0.02
Longitude 8.47 ± 0.03
Depth (km) 10 ± 4 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 424269

Uncertainty

Field Value
Preferred uncertainty description horizontal uncertainty
Semi-major axis of confidence ellipse (meter)
Semi-minor axis of confidence ellipse (meter)
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi)
Circular confidence region, given by single value of horizontal uncertainty (meter) 3622.3
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 141
Number of associated phases, regardless of their use for origin computation 41
Number of defining phases 41
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.7
Epicentral distance of station closest to the epicenter (degree) 0.00639
Epicentral distance of station farthest from the epicenter (degree) 0.06379
Number of stations at which the event was observed 37
Number of stations from which data was used for origin computation 37
Magnitudes information

Md:4

Field Value
Value 4
Uncertainty
Num. used stations 3
Type of magnitude Md
Reference to an origin 424269
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 23:40:08

ML:4.2

Field Value
Value 4.2
Uncertainty
Num. used stations
Type of magnitude ML
Reference to an origin 424269
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2015-04-28 10:38:22
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
--.MGR.Z. 2001-07-18T22:48:56.37 10.0 undecidable manual PN 130 0.0638 1.23 0.3
--.SGO.Z. 2001-07-18T22:48:50.86 10.0 undecidable manual PN 129 0.0599 1.62 0.2
--.RGNG.Z. 2001-07-18T22:48:40.55 10.0 undecidable manual PN 120 0.055 -1.27 0.3
--.CPI2.Z. 2001-07-18T22:48:33.48 10.0 undecidable manual PN 126 0.0487 1.27 0.4
--.RNI2.Z. 2001-07-18T22:48:31.62 10.0 undecidable manual PN 126 0.0472 1.74 0.2
--.RFI.Z. 2001-07-18T22:48:31.33 10.0 undecidable manual PN 130 0.0488 -0.95 0.5
--.RVI2.Z. 2001-07-18T22:48:28.92 10.0 undecidable manual PN 128 0.047 -0.66 0.7
--.SDI.Z. 2001-07-18T22:48:27.99 10.0 undecidable manual PN 128 0.0454 0.84 0.7
--.PTQR.Z. 2001-07-18T22:48:22.26 10.0 undecidable manual PN 128 0.0415 1.08 0.5
--.AQU.Z. 2001-07-18T22:48:19.66 10.0 undecidable manual PN 124 0.0397 1.35 0.4
--.MNS.Z. 2001-07-18T22:48:11.87 10.0 negative manual PN 129 0.0358 -0.52 2
--.NRCA.Z. 2001-07-18T22:48:11.47 10.0 undecidable manual PN 121 0.0355 -0.62 0.9
--.TRI.Z. 2001-07-18T22:48:09.37 10.0 positive manual PN 77 0.0342 -0.59 1.9
--.PTCC.Z. 2001-07-18T22:48:08.50 10.0 positive manual PN 65 0.0334 -0.26 2.3
--.PII.Z. 2001-07-18T22:48:07.49 10.0 undecidable manual SN 129 0.0172 -0.18 0.5
--.SNTG.Z. 2001-07-18T22:48:06.88 10.0 undecidable manual PN 116 0.0326 -0.7 0.9
--.ARV.Z. 2001-07-18T22:48:06.32 10.0 undecidable manual PN 113 0.0316 0.25 1.2
--.GMNA.Z. 2001-07-18T22:48:06.17 10.0 positive manual PN 66 0.0317 -0.06 2.5
--.ASS.Z. 2001-07-18T22:48:05.73 10.0 undecidable manual PN 121 0.0319 -0.77 0.8
--.FVI.Z. 2001-07-18T22:48:05.45 10.0 undecidable manual PN 60 0.0308 0.56 1.1
--.RSM.Z. 2001-07-18T22:48:00.51 10.0 positive manual PN 108 0.0271 1.27 1
--.CRE.Z. 2001-07-18T22:47:55.23 10.0 undecidable manual PN 117 0.0253 -1.31 0.4
--.ERBM.Z. 2001-07-18T22:47:55.85 10.0 undecidable manual SN 110 0.0133 -1.53 0.1
--.BNI.Z. 2001-07-18T22:47:53.90 10.0 undecidable manual SN 276 0.0113 0.73 0.4
--.SFI.Z. 2001-07-18T22:47:53.60 10.0 undecidable manual PN 112 0.0236 -0.26 1.3
--.PGD.Z. 2001-07-18T22:47:52.77 10.0 undecidable manual PN 114 0.023 -0.13 1.3
--.GRFL.Z. 2001-07-18T22:47:52.30 10.0 undecidable manual PN 134 0.0228 -0.68 1
--.CTI.Z. 2001-07-18T22:47:51.85 10.0 positive manual PN 63 0.0223 -0.11 2.6
--.CSNT.Z. 2001-07-18T22:47:50.75 10.0 undecidable manual PN 125 0.0225 -1.38 0.4
--.BRMO.Z. 2001-07-18T22:47:46.50 10.0 undecidable manual PN 40 0.0182 0.84 0.9
--.ZCCA.Z. 2001-07-18T22:47:46.21 10.0 positive manual PN! 108 0.0169 2.59 0
--.PII.Z. 2001-07-18T22:47:42.44 10.0 undecidable manual PN 129 0.0172 -1.6 0.3
--.GSCL.Z. 2001-07-18T22:47:41.36 10.0 positive manual PN 111 0.0146 1.31 1
--.ERBM.Z. 2001-07-18T22:47:39.11 10.0 undecidable manual PN 110 0.0133 1.01 0.7
--.SAL.Z. 2001-07-18T22:47:39.90 10.0 negative manual PN 65 0.0143 0.22 2.6
--.ORO.Z. 2001-07-18T22:47:36.92 10.0 undecidable manual SG 334 0.0069 -1.32 0.2
--.BNI.Z. 2001-07-18T22:47:34.25 10.0 undecidable manual PN 276 0.0113 -0.95 0.8
--.MCGN.Z. 2001-07-18T22:47:31.98 10.0 undecidable manual PN 342 0.0096 -0.48 1.2
--.VAI.Z. 2001-07-18T22:47:30.67 10.0 positive manual PG 13 0.0085 0.24 2.6
--.ORO.Z. 2001-07-18T22:47:27.18 10.0 positive manual PG 334 0.0069 0.13 2.6
--.BOB.Z. 2001-07-18T22:47:25.60 10.0 positive manual PG 104 0.0064 -1.09 1.3
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
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