Earthquake with magnitude of Md 3.7 on date 26-04-1999 and time 04:53:45 (Italy) in region 1 km S Calliano (TN)

A magnitude Md 3.7 earthquake occured in region: 1 km S Calliano (TN), on

  • 26-04-1999 02:53:45 (UTC)
  • 26-04-1999 04:53:45 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 45.9220, 11.0990 at 2 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
Calliano TN 2 1807 1807
Nomi TN 2 1398 3205
Besenello TN 3 2654 5859
Volano TN 3 3169 9028
Pomarolo TN 4 2452 11480
Villa Lagarina TN 5 3778 15258
Folgaria TN 6 3191 18449
Rovereto TN 6 39289 57738
Nogaredo TN 6 2065 59803
Trambileno TN 6 1452 61255
Aldeno TN 6 3059 64314
Terragnolo TN 6 716 65030
Cimone TN 7 728 65758
Isera TN 8 2735 68493
Garniga Terme TN 9 388 68881
Ronzo-Chienis TN 12 976 69857
Mori TN 12 9678 79535
Altopiano della Vigolana TN 12 4942 84477
Cavedine TN 13 2987 87464
Drena TN 13 570 88034
Lastebasse VI 13 208 88242
Lavarone TN 13 1138 89380
Madruzzo TN 14 2884 92264
Calceranica al Lago TN 15 1387 93651
Caldonazzo TN 15 3631 97282
Dro TN 15 4944 102226
Vallarsa TN 16 1395 103621
Brentonico TN 16 4015 107636
Pedemonte VI 16 774 108410
Arco TN 16 17526 125936
Trento TN 17 117317 243253
Tenna TN 17 993 244246
Laghi VI 17 133 244379
Luserna TN 18 276 244655
Nago-Torbole TN 18 2867 247522
Levico Terme TN 19 7915 255437
Vallelaghi TN 19 5044 260481
Pergine Valsugana TN 19 21280 281761
Posina VI 19 566 282327
Vignola-Falesina TN 20 162 282489
Ala TN 20 8913 291402
Civezzano TN 20 4002 295404

Municipalities with at least 50000 inhabitants

An earthquake occurred to
17 Km S of Trento (117317 inhabitants)
54 Km NW of Vicenza (112953 inhabitants)
54 Km N of Verona (258765 inhabitants)
67 Km SW of Bolzano (106441 inhabitants)
80 Km NE of Brescia (196480 inhabitants)
83 Km NW of Padova (210401 inhabitants)
93 Km W of Treviso (83731 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 3.7
ML-VAX 2.6
1999-04-26
02:53:45
45.922 11.099 2 2013-07-15
08:40:51
Bollettino Sismico Italiano INGV 363979
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1999-04-26 02:53:45 ± 0.214
Latitude 45.9220 ± 0.0124
Longitude 11.0990 ± 0.0131
Depth (km) 2 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 363979

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) 1708.1
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 101
Number of associated phases, regardless of their use for origin computation 38
Number of defining phases 38
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.4
Epicentral distance of station closest to the epicenter (degree) 0.00356
Epicentral distance of station farthest from the epicenter (degree) 0.04177
Number of stations at which the event was observed 25
Number of stations from which data was used for origin computation 25
Magnitudes information

Md:3.7

Field Value
Value 3.7
Uncertainty
Num. used stations 4
Type of magnitude Md
Reference to an origin 363979
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 22:41:24

ML:2.6

Field Value
Value 2.6
Uncertainty
Num. used stations 21
Type of magnitude ML
Reference to an origin 363979
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2015-04-28 13:07:13
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
--.MNS.Z. 1999-04-26T02:55:26.28 10.0 undecidable manual SN 162 3.7074 -0.11 0.5
--.SDI.Z. 1999-04-26T02:54:57.76 10.0 undecidable manual PN 154 4.6398 1.23 0.2
--.FB9.Z. 1999-04-26T02:54:56.97 10.0 undecidable manual SN 151 2.5197 -1.21 0.1
--.ORO.Z. 1999-04-26T02:54:51.27 10.0 undecidable manual SN 263 2.1867 1.02 0.2
--.PII.Z. 1999-04-26T02:54:50.47 10.0 undecidable manual SN 191 2.2311 -0.84 0.3
--.MCGN.Z. 1999-04-26T02:54:49.60 10.0 undecidable manual SN 272 2.1534 -0.47 0.6
--.MNS.Z. 1999-04-26T02:54:43.64 10.0 undecidable manual PN 162 3.7074 -0.13 1.3
--.TRI.Z. 1999-04-26T02:54:41.99 10.0 undecidable manual SN 95 1.8648 -0.56 0.5
--.NRCA.Z. 1999-04-26T02:54:40.50 10.0 undecidable manual PN 154 3.3966 0.49 1
--.PTCC.Z. 1999-04-26T02:54:37.20 10.0 undecidable manual SN 72 1.6317 0.06 0.7
--.BNI.Z. 1999-04-26T02:54:37.20 10.0 undecidable manual PN 256 3.2079 0.24 1.4
--.BOB.Z. 1999-04-26T02:54:36.86 10.0 undecidable manual SN 226 1.6317 -0.16 0.7
--.EB9.Z. 1999-04-26T02:54:35.70 10.0 undecidable manual SN 198 1.5762 0.07 0.7
--.ASS.Z. 1999-04-26T02:54:34.00 10.0 undecidable manual PN 158 3.0525 -0.88 0.6
--.DOI.Z. 1999-04-26T02:54:33.93 10.0 undecidable manual PN 244 3.0525 -0.9 0.5
--.SNTG.Z. 1999-04-26T02:54:33.48 10.0 undecidable manual PN 153 2.9637 -0.1 1.5
--.FVI.Z. 1999-04-26T02:54:30.24 10.0 undecidable manual SN 59 1.3431 0.21 0.7
--.GRFL.Z. 1999-04-26T02:54:30.48 10.0 undecidable manual PN 182 2.7639 -0.42 1.3
--.FB9.Z. 1999-04-26T02:54:27.52 10.0 undecidable manual PN 151 2.5197 0.03 1.7
--.CKI.Z. 1999-04-26T02:54:27.89 10.0 undecidable manual PN 234 2.4753 0.89 0.6
--.CSNT.Z. 1999-04-26T02:54:25.87 10.0 undecidable manual PN 177 2.442 -0.6 1.1
--.MCGN.Z. 1999-04-26T02:54:25.13 10.0 undecidable manual PN! 272 2.1534 2.64 0
--.CRE.Z. 1999-04-26T02:54:25.68 10.0 undecidable manual PN 165 2.3754 0.21 1.7
--.PII.Z. 1999-04-26T02:54:23.36 10.0 undecidable manual PN 191 2.2311 -0.16 1.7
--.ORO.Z. 1999-04-26T02:54:22.13 10.0 undecidable manual PN 263 2.1867 -0.78 0.8
--.SFI.Z. 1999-04-26T02:54:21.16 10.0 undecidable manual PN 165 2.0757 -0.27 1.7
--.TRI.Z. 1999-04-26T02:54:18.33 10.0 undecidable manual PN 95 1.8648 -0.13 1.8
--.BOB.Z. 1999-04-26T02:54:16.32 10.0 undecidable manual PN 226 1.6317 1.05 0.4
--.EB9.Z. 1999-04-26T02:54:15.35 10.0 undecidable manual PN 198 1.5762 0.88 0.7
--.PTCC.Z. 1999-04-26T02:54:15.71 10.0 undecidable manual PN 72 1.6317 0.48 1.4
--.ZC9.Z. 1999-04-26T02:54:15.15 10.0 undecidable manual PN 183 1.5651 0.77 0.9
--.FVI.Z. 1999-04-26T02:54:11.80 10.0 undecidable manual PN 59 1.3431 0.56 1.2
--.BR9.Z. 1999-04-26T02:54:11.53 10.0 undecidable manual SG 318 0.7437 -1.39 0.1
--.SAL.Z. 1999-04-26T02:54:04.51 10.0 undecidable manual SG 232 0.4995 -0.63 0.4
--.BR9.Z. 1999-04-26T02:54:01.74 10.0 undecidable manual PG 318 0.7437 0.38 1.5
--.CTI.Z. 1999-04-26T02:53:59.74 10.0 undecidable manual SG 72 0.3996 -1.36 0.1
--.SAL.Z. 1999-04-26T02:53:56.64 10.0 positive manual PG 232 0.4995 -0.22 3.5
--.CTI.Z. 1999-04-26T02:53:54.49 10.0 positive manual PG 72 0.3996 -0.04 3.7
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