Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of Md 2.8 on date 15-11-1993 and time 01:20:01 (Italy) in region 3 km W Baldissero d'Alba (CN)

A magnitude Md 2.8 earthquake occured in region: 3 km W Baldissero d'Alba (CN), on

  • 15-11-1993 00:20:01 (UTC)
  • 15-11-1993 01:20:01 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 44.7710, 7.8890 at 20 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
Baldissero d'Alba CN 3 1069 1069
Montaldo Roero CN 3 844 1913
Sommariva Perno CN 3 2797 4710
Monteu Roero CN 4 1634 6344
Santo Stefano Roero CN 5 1390 7734
Pocapaglia CN 6 3339 11073
Ceresole Alba CN 6 2090 13163
Corneliano d'Alba CN 7 2118 15281
Sanfrè CN 7 3040 18321
Monticello d'Alba CN 7 2292 20613
Montà CN 7 4733 25346
Piobesi d'Alba CN 8 1288 26634
Sommariva del Bosco CN 8 6361 32995
Bra CN 8 29737 62732
Vezza d'Alba CN 9 2287 65019
Canale CN 9 5686 70705
Santa Vittoria d'Alba CN 9 2795 73500
Pralormo TO 10 1957 75457
Cisterna d'Asti AT 11 1245 76702
Castagnito CN 11 2163 78865
Castellinaldo d'Alba CN 11 938 79803
Caramagna Piemonte CN 12 3034 82837
Cellarengo AT 12 720 83557
Verduno CN 12 588 84145
Guarene CN 12 3596 87741
Roddi CN 12 1607 89348
Cherasco CN 13 9076 98424
Priocca CN 14 2017 100441
Alba CN 14 31437 131878
Ferrere AT 14 1608 133486
Magliano Alfieri CN 14 2153 135639
Grinzane Cavour CN 15 1995 137634
La Morra CN 15 2724 140358
Isolabella TO 15 396 140754
Valfenera AT 15 2462 143216
San Damiano d'Asti AT 16 8315 151531
Carmagnola TO 16 29079 180610
Barbaresco CN 16 658 181268
Racconigi CN 17 10038 191306
Cervere CN 17 2236 193542
Poirino TO 17 10553 204095
Govone CN 17 2203 206298
Diano d'Alba CN 17 3570 209868
Cavallermaggiore CN 17 5533 215401
Marene CN 17 3175 218576
Castiglione Falletto CN 18 700 219276
Dusino San Michele AT 18 1022 220298
Treiso CN 18 820 221118
Cavallerleone CN 18 644 221762
San Martino Alfieri AT 18 666 222428
Barolo CN 18 740 223168
Cantarana AT 18 982 224150
Neive CN 19 3405 227555
Villanova d'Asti AT 20 5745 233300
Narzole CN 20 3437 236737
Villafranca d'Asti AT 20 3094 239831
Tigliole AT 20 1699 241530
Serralunga d'Alba CN 20 564 242094

Municipalities with at least 50000 inhabitants

An earthquake occurred to
29 Km W of Asti (76202 inhabitants)
30 Km SE of Moncalieri (57294 inhabitants)
38 Km SE of Torino (890529 inhabitants)
50 Km NE of Cuneo (56081 inhabitants)
60 Km W of Alessandria (93943 inhabitants)
70 Km NW of Savona (61345 inhabitants)
92 Km W of Genova (586655 inhabitants)
95 Km SW of Novara (104380 inhabitants)
98 Km SW of Vigevano (63310 inhabitants)
Recent and historical seismicity

These maps show the seismic activity in different time intervals, before the seismic event to which they refer. Data reported in the first two maps come from the analysis carried out in real time by the personnel of the INGV Operating Rooms, immediately after each earthquake. The third map shows data from 1985 to the date of the earthquake: the locations are reviewed by the seismological analysts of the INGV Italian Seismic Bulletin (Bollettino Sismico Italiano dell’INGV). The localization parameters (hypocentral coordinates and magnitude) are the best possible estimate with the data available to the INGV, but are constantly updated according to further data that become available. The location and magnitude parameters, subsequently reviewed by seismological analysts, may vary.

Earthquakes of the 3 days preceding this event

Earthquakes of the 3 days preceding this event

This map shows the earthquake epicenters with magnitude ≥ 0.0, localized with data recorded by the National Seismic Network and other collaborative networks both in Italy and in neighboring countries, in the 72 hours preceding this event. The size of the circle indicates the different classes of magnitude. The colors indicate the different time intervals preceding the seismic event. The black and white star is the epicenter of the current earthquake.
Earthquakes of the 90 days preceding this event

Earthquakes of the 90 days preceding this event

This map shows the earthquake epicenters with magnitude ≥ 2.0, localized with data recorded by the National Seismic Network and other collaborative networks both in Italy and in neighboring countries, in the 90 days preceding this event. The size of the circle indicates the different classes of magnitude. The colors indicate the different time intervals preceding the seismic event. The black and white star is the epicenter of the current earthquake.
Earthquakes from 1985 to the date of the event

Earthquakes from 1985 to the date of the event

This map shows the earthquake epicenters with magnitude ≥ 3.0, localized with data recorded by the National Seismic Network and other collaborative networks both in Italy and in neighboring countries, from 1985 to the date of this event. The size of the circle indicates the different classes of magnitude. The colors indicate the different time intervals preceding the seismic event. The black and white star is the epicenter of the current earthquake.
Earthquakes since 1000 AD until 2019

Earthquakes since 1000 AD until 2019

This map shows the epicenters of the historical earthquakes catalogue CPT15 (Catalogo Parametrico dei Terremoti Italiani, 2015 version 3.0, https://doi.org/10.13127/cpti/cpti15.3) since 1000 AD until 2019. The size of the square indicates the different classes of magnitude. For earthquakes with magnitude ≥ 6.0, it is also shown the year of occurrence and the magnitude value. The black and white star is the epicenter of the current earthquake.
Seismic hazard

Seismic hazard maps provide probabilistic estimates of the earthquake ground shaking exceeding a given threshold in a given geographic region within a given time window. Thus, it is not a deterministic prediction - a target that may be never reached given the complexity of the earthquake physical phenomenon - nor of the maximum expected earthquake since this has extremely low probabilities to occur.

In 2004, it was published the seismic hazard map of Italy (http://zonesismiche.mi.ingv.it) that provides a picture of the most hazardous geographic regions. The seismic hazard map of Italy (GdL MPS, 2004; rif. Ordinanza PCM del 28 aprile 2006, n. 3519, All. 1b) provides the 10% probability of exceedance in 50 years of the horizontal acceleration at rock sites (i.e., Vs30>800 m/s; cat. A, 3.2.1 of the D.M. 14.09.2005).

The colours indicate the various values of the ground acceleration that have 10% to be exceeded within 50 years. In general, the colours associated to low values of acceleration refer to areas that are less hazardous and stronger earthquakes repeat less frequently although they may still occur.

Seismic hazard map

Seismic hazard map

This map shows the seismic hazard map of Italy for the region where the earthquake occurred.
Shakemap
Felt maps
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
Bulletin
Rev1000 		Md 2.8
M 3.5 		1993-11-15
00:20:01		 44.771 7.889 20 2013-07-15
08:40:51		 Bollettino Sismico Italiano INGV 200419
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1993-11-15 00:20:01 ± 0.157
Latitude 44.7710 ± 0.0103
Longitude 7.8890 ± 0.0111
Depth (km) 20 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 200419

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) 1440.3
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 29
Number of associated phases, regardless of their use for origin computation 103
Number of defining phases 103
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.6
Epicentral distance of station closest to the epicenter (degree) 0.00397
Epicentral distance of station farthest from the epicenter (degree) 0.06273
Number of stations at which the event was observed 63
Number of stations from which data was used for origin computation 63
Magnitudes information

Md:2.8

Field Value
Value 2.8
Uncertainty
Num. used stations 6
Type of magnitude Md
Reference to an origin 200419
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 20:08:23

M:3.5

Field Value
Value 3.5
Uncertainty
Num. used stations
Type of magnitude M
Reference to an origin 200419
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2015-04-28 09:48:29
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
--.FLN.Z. 1993-11-15T00:22:56.00 10.0 undecidable manual SN 307 6.9597 0.19 0.4
--.MFF.Z. 1993-11-15T00:22:29.70 10.0 undecidable manual SN 290 5.883 -0.42 0.3
--.LSF.Z. 1993-11-15T00:22:02.80 10.0 undecidable manual SN 290 4.6842 1.36 0.2
--.TCF.Z. 1993-11-15T00:21:52.60 10.0 undecidable manual SN 292 4.2513 1.56 0.1
--.CAF.Z. 1993-11-15T00:21:49.39 10.0 undecidable manual SN 273 4.1292 1.33 0.2
--.BGF.Z. 1993-11-15T00:21:44.30 10.0 undecidable manual SN 298 3.9405 0.54 0.5
--.MAF.Z. 1993-11-15T00:21:44.10 10.0 undecidable manual SN 292 3.9849 -0.89 0.2
--.FLN.Z. 1993-11-15T00:21:42.80 10.0 undecidable manual PN 307 6.9597 0.69 0.7
--.SSF.Z. 1993-11-15T00:21:40.30 10.0 undecidable manual SN 308 3.7962 -0.2 0.5
--.LOR.Z. 1993-11-15T00:21:39.70 10.0 undecidable manual SN 312 3.7407 0.7 0.5
--.AVF.Z. 1993-11-15T00:21:39.00 10.0 undecidable manual SN 303 3.7518 -0.06 0.5
--.CDF.Z. 1993-11-15T00:21:37.20 10.0 undecidable manual SN 353 3.6519 0.22 0.6
--.LBF.Z. 1993-11-15T00:21:33.39 10.0 undecidable manual SN 310 3.4965 0.12 0.6
--.HAU.Z. 1993-11-15T00:21:30.89 10.0 undecidable manual SN 341 3.3966 0.11 0.6
--.SMF.Z. 1993-11-15T00:21:30.30 10.0 undecidable manual SN 304 3.3744 -0.17 0.5
--.MFF.Z. 1993-11-15T00:21:29.00 10.0 undecidable manual PN 290 5.883 1.72 0.1
--.KHC.Z. 1993-11-15T00:21:26.00 10.0 undecidable manual PN 39 5.8275 -0.41 0.9
--.BSF.Z. 1993-11-15T00:21:25.60 10.0 undecidable manual SN 346 3.1413 0.79 0.4
--.CTI.Z. 1993-11-15T00:21:18.30 10.0 undecidable manual SN 62 2.9193 -1.54 0.1
--.LSF.Z. 1993-11-15T00:21:12.30 10.0 undecidable manual PN 290 4.6842 1.58 0.2
--.RJF.Z. 1993-11-15T00:21:10.20 10.0 undecidable manual PN 278 4.5177 1.69 0.2
--.TCF.Z. 1993-11-15T00:21:06.20 10.0 undecidable manual PN 292 4.2513 1.49 0.3
--.CAF.Z. 1993-11-15T00:21:04.00 10.0 undecidable manual PN 273 4.1292 1 0.7
--.BGF.Z. 1993-11-15T00:21:01.50 10.0 undecidable manual PN 298 3.9405 0.99 0.7
--.MAF.Z. 1993-11-15T00:21:01.89 10.0 undecidable manual PN 292 3.9849 0.67 1.1
--.FVI.Z. 1993-11-15T00:20:59.64 10.0 undecidable manual PN 59 3.8628 0.2 1.3
--.BDI.Z. 1993-11-15T00:20:59.37 10.0 undecidable manual SN 108 2.0535 0.54 0.6
--.SSF.Z. 1993-11-15T00:20:58.30 10.0 undecidable manual PN 308 3.7962 -0.33 1.2
--.LOR.Z. 1993-11-15T00:20:58.39 10.0 undecidable manual PN 312 3.7407 0.63 1.1
--.AVF.Z. 1993-11-15T00:20:58.89 10.0 undecidable manual PN 303 3.7518 1.09 0.7
--.GU9.Z. 1993-11-15T00:20:57.20 10.0 undecidable manual SN 100 1.9536 0.55 0.6
--.CDF.Z. 1993-11-15T00:20:56.30 10.0 undecidable manual PN 353 3.6519 -0.3 1.3
--.WLS.Z. 1993-11-15T00:20:56.21 10.0 undecidable manual PN 353 3.6519 -0.32 1.3
--.LBF.Z. 1993-11-15T00:20:55.39 10.0 undecidable manual PN 310 3.4965 0.94 0.8
--.HAU.Z. 1993-11-15T00:20:53.10 10.0 undecidable manual PN 341 3.3966 0.08 1.5
--.SMF.Z. 1993-11-15T00:20:53.80 10.0 undecidable manual PN 304 3.3744 0.96 0.8
--.ECH.Z. 1993-11-15T00:20:53.95 10.0 undecidable manual PN 351 3.4632 -0.12 1.4
--.BSF.Z. 1993-11-15T00:20:49.50 10.0 undecidable manual PN 346 3.1413 -0.07 1.5
--.CRE.Z. 1993-11-15T00:20:49.80 10.0 undecidable manual PN 109 3.1191 0.53 1.2
--.FEL.Z. 1993-11-15T00:20:48.50 10.0 undecidable manual PN 1 3.0969 -0.41 1.3
--.MOF.Z. 1993-11-15T00:20:48.12 10.0 undecidable manual PN 350 3.1191 -1.06 0.6
--.SLE.Z. 1993-11-15T00:20:47.50 10.0 undecidable manual PN 7 3.0192 -0.3 1.5
--.MDI.Z. 1993-11-15T00:20:47.40 10.0 undecidable manual SN 50 1.6317 -1.57 0.1
--.CTI.Z. 1993-11-15T00:20:45.51 10.0 undecidable manual PN 62 2.9193 -1.03 0.7
--.OSS.Z. 1993-11-15T00:20:40.70 10.0 undecidable manual PN 38 2.4753 0.37 1.6
--.ZC9.Z. 1993-11-15T00:20:37.99 10.0 undecidable manual PN 99 2.2311 0.95 0.9
--.LLS.Z. 1993-11-15T00:20:36.50 10.0 undecidable manual PN 19 2.2089 -0.26 1.8
--.BOB.Z. 1993-11-15T00:20:36.61 10.0 undecidable manual SN 89 1.0989 0.43 0.6
--.LPG.Z. 1993-11-15T00:20:35.50 10.0 undecidable manual SN 312 1.0767 -0.11 0.7
--.LPL.Z. 1993-11-15T00:20:35.30 10.0 undecidable manual SN 312 1.0989 -0.85 0.3
--.PII.Z. 1993-11-15T00:20:34.90 10.0 undecidable manual PN 117 2.1423 -1.04 0.8
--.VDL.Z. 1993-11-15T00:20:34.70 10.0 positive manual PN 31 2.0313 0.4 3.3
--.SAL.Z. 1993-11-15T00:20:33.41 10.0 undecidable manual PN 64 2.0313 -0.86 1.1
--.GU9.Z. 1993-11-15T00:20:33.85 10.0 undecidable manual PN 100 1.9536 0.54 1.4
--.BDI.Z. 1993-11-15T00:20:33.37 10.0 undecidable manual PN 108 2.0535 -1.2 0.6
--.SBF.Z. 1993-11-15T00:20:31.20 10.0 undecidable manual SN 199 0.9657 -1.6 0.1
--.BNI.Z. 1993-11-15T00:20:30.54 10.0 undecidable manual SN 288 0.8991 -0.79 0.3
--.LMR.Z. 1993-11-15T00:20:29.80 10.0 undecidable manual PN 214 1.7427 -0.47 1.5
--.LRG.Z. 1993-11-15T00:20:29.50 10.0 undecidable manual PN 219 1.7094 -0.33 1.6
--.ORO.Z. 1993-11-15T00:20:29.55 10.0 undecidable manual SN 3 0.8547 -0.74 0.4
--.NO1.Z. 1993-11-15T00:20:29.00 10.0 undecidable manual SN 37 0.8325 -0.82 0.7
--.IMI.Z. 1993-11-15T00:20:28.20 10.0 undecidable manual SN! 179 0.8547 -2.32 0
--.LSD.Z. 1993-11-15T00:20:28.25 10.0 undecidable manual SN! 322 0.8547 -2.07 0
--.MDI.Z. 1993-11-15T00:20:27.88 10.0 undecidable manual PN 50 1.6317 -0.79 1.2
--.ORX.Z. 1993-11-15T00:20:27.74 10.0 undecidable manual SN! 3 0.8547 -2.67 0
--.EMS.Z. 1993-11-15T00:20:27.70 10.0 undecidable manual PN 332 1.4541 1.32 0.6
--.RRL.Z. 1993-11-15T00:20:27.51 10.0 undecidable manual SN 280 0.7881 -1.33 0.1
--.FRF.Z. 1993-11-15T00:20:26.60 10.0 undecidable manual PN 216 1.4985 -0.34 1.6
--.TMA.Z. 1993-11-15T00:20:26.50 10.0 positive manual PN 26 1.4985 -0.43 3.2
--.RSL.Z. 1993-11-15T00:20:25.70 10.0 undecidable manual PN 315 1.2765 1.22 0.7
--.DIX.Z. 1993-11-15T00:20:24.80 10.0 positive manual PN 345 1.3431 -0.06 3.7
--.MMK.Z. 1993-11-15T00:20:23.10 10.0 positive manual PN 1 1.2765 -0.8 2.2
--.ENR.Z. 1993-11-15T00:20:22.53 10.0 undecidable manual SG 211 0.6327 -1.59 0.1
--.BOB.Z. 1993-11-15T00:20:22.64 10.0 undecidable manual PN 89 1.0989 1.15 0.6
--.FIN.Z. 1993-11-15T00:20:22.10 10.0 undecidable manual SG 157 0.5994 -1.1 0.3
--.STV.Z. 1993-11-15T00:20:22.81 10.0 undecidable manual SG 217 0.6438 -1.8 0
--.LPL.Z. 1993-11-15T00:20:21.80 10.0 undecidable manual PN 312 1.0989 0.33 1.8
--.PZZ.Z. 1993-11-15T00:20:21.73 10.0 undecidable manual SG 244 0.6105 -1.81 0
--.LPG.Z. 1993-11-15T00:20:21.50 10.0 undecidable manual PN 312 1.0767 0.33 1.8
--.RSP.Z. 1993-11-15T00:20:20.98 10.0 undecidable manual SG 310 0.5883 -1.5 0.1
--.PCP.Z. 1993-11-15T00:20:20.46 10.0 undecidable manual SG 115 0.5106 0.08 0.7
--.CKI.Z. 1993-11-15T00:20:19.22 10.0 undecidable manual SG 141 0.444 1.09 0.2
--.DOI.Z. 1993-11-15T00:20:19.89 10.0 undecidable manual SG 239 0.5217 -0.82 0.4
--.SBF.Z. 1993-11-15T00:20:19.30 10.0 undecidable manual PN 199 0.9657 -0.24 1.7
--.ROB.Z. 1993-11-15T00:20:19.78 10.0 undecidable manual SG 180 0.4662 0.98 0.3
--.NO1.Z. 1993-11-15T00:20:18.50 10.0 positive manual PN 37 0.8325 0.68 2.6
--.BNI.Z. 1993-11-15T00:20:18.85 10.0 negative manual PN 288 0.8991 0.16 3.7
--.ORO.Z. 1993-11-15T00:20:17.90 10.0 undecidable manual PN 3 0.8547 -1 0.8
--.RRL.Z. 1993-11-15T00:20:17.30 10.0 undecidable manual PN 280 0.7881 -0.23 1.7
--.IMI.Z. 1993-11-15T00:20:17.44 10.0 undecidable manual PN 179 0.8547 -0.68 1.2
--.ORX.Z. 1993-11-15T00:20:17.80 10.0 undecidable manual PN 3 0.8547 -1.08 0.7
--.LSD.Z. 1993-11-15T00:20:17.60 10.0 undecidable manual PN 322 0.8547 -0.51 1.4
--.STV.Z. 1993-11-15T00:20:14.19 10.0 undecidable manual PG 217 0.6438 -0.62 1.3
--.ENR.Z. 1993-11-15T00:20:14.17 10.0 undecidable manual PG 211 0.6327 -0.36 1.7
--.FIN.Z. 1993-11-15T00:20:13.74 10.0 undecidable manual PG 157 0.5994 -0.21 1.8
--.RSP.Z. 1993-11-15T00:20:13.30 10.0 undecidable manual PG 310 0.5883 -0.28 1.7
--.PZZ.Z. 1993-11-15T00:20:13.42 10.0 undecidable manual PG 244 0.6105 -0.78 1.1
--.ROB.Z. 1993-11-15T00:20:12.43 10.0 undecidable manual PG 180 0.4662 0.97 0.9
--.PCP.Z. 1993-11-15T00:20:12.91 10.0 undecidable manual PG 115 0.5106 0.54 1.3
--.DOI.Z. 1993-11-15T00:20:12.36 10.0 negative manual PG 239 0.5217 -0.2 3.5
--.BHB.Z. 1993-11-15T00:20:11.70 10.0 undecidable manual PG 277 0.444 0.6 1.5
--.CKI.Z. 1993-11-15T00:20:11.91 10.0 positive manual PG 141 0.444 0.84 1.9
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
Fault Plane solutions

Fault Plane solutions

The map reports the fault plane solutions for earthquakes in the region from 1977 to the date of this event. Red moment tensors are determined using the Regional Centroid Moment Tensor technique (RCMT, http://www.bo.ingv.it/RCMT) applied for earthquakes with magnitude larger than 4.5 in the Euro-Mediterranenan area. Occasionally, when a station azimuthal coverage exists RCMTs can be obtained also for earthquakes with magnitude down to 4.0. The gray moment tensors are obtained with the Time Domain Moment Tensor method (TDMT, /tdmt). This technique is applied to earthquakes with magnitude ML greater than 3.2, when it is possible. The size of symbols scales with the calculated moment magnitude Mw.
Download
Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download