Earthquake with magnitude of Md 3.0 on date 21-04-1996 and time 13:02:47 (Italy) in region 2 km NW Collepietro (AQ)

A magnitude Md 3.0 earthquake occured in region: 2 km NW Collepietro (AQ), on

  • 21-04-1996 11:02:47 (UTC)
  • 21-04-1996 13:02:47 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.2320, 13.7650 at 5 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
Collepietro AQ 2 237 237
Navelli AQ 3 554 791
Capestrano AQ 4 884 1675
San Benedetto in Perillis AQ 5 113 1788
Bussi sul Tirino PE 6 2518 4306
Acciano AQ 7 327 4633
Caporciano AQ 8 230 4863
Popoli PE 9 5172 10035
Molina Aterno AQ 10 386 10421
Carapelle Calvisio AQ 10 87 10508
Pescosansonesco PE 10 517 11025
Castiglione a Casauria PE 11 831 11856
Ofena AQ 11 506 12362
Castelvecchio Calvisio AQ 11 153 12515
San Pio delle Camere AQ 11 661 13176
Tione degli Abruzzi AQ 11 310 13486
Secinaro AQ 11 359 13845
Villa Santa Lucia degli Abruzzi AQ 11 123 13968
Castelvecchio Subequo AQ 11 982 14950
Corvara PE 11 256 15206
Calascio AQ 12 137 15343
Brittoli PE 12 290 15633
Tocco da Casauria PE 12 2688 18321
Vittorito AQ 13 873 19194
Gagliano Aterno AQ 13 254 19448
Fontecchio AQ 13 369 19817
Pietranico PE 13 484 20301
Castel di Ieri AQ 13 303 20604
Corfinio AQ 14 1051 21655
Torre de' Passeri PE 14 3147 24802
Carpineto della Nora PE 14 662 25464
Prata d'Ansidonia AQ 14 496 25960
Raiano AQ 15 2815 28775
Civitaquana PE 15 1247 30022
Castel del Monte AQ 15 413 30435
Santo Stefano di Sessanio AQ 16 111 30546
Fagnano Alto AQ 16 418 30964
Roccacasale AQ 16 693 31657
Vicoli PE 16 390 32047
Bolognano PE 16 1108 33155
Cugnoli PE 16 1506 34661
Goriano Sicoli AQ 17 569 35230
Salle PE 17 308 35538
Pratola Peligna AQ 17 7577 43115
Barisciano AQ 18 1828 44943
San Demetrio ne' Vestini AQ 18 1854 46797
Civitella Casanova PE 18 1815 48612
Alanno PE 18 3487 52099
San Valentino in Abruzzo Citeriore PE 18 1922 54021
Villa Celiera PE 18 681 54702
Villa Sant'Angelo AQ 19 424 55126
Catignano PE 20 1399 56525

Municipalities with at least 50000 inhabitants

An earthquake occurred to
33 Km E of L'Aquila (69753 inhabitants)
36 Km W of Chieti (51815 inhabitants)
45 Km SW of Montesilvano (53738 inhabitants)
45 Km SW of Pescara (121014 inhabitants)
48 Km S of Teramo (54892 inhabitants)
85 Km E of Tivoli (56533 inhabitants)
89 Km E of Guidonia Montecelio (88673 inhabitants)
99 Km E of Terni (111501 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 3.0
ML-VAX 1.9
1996-04-21
11:02:47
42.232 13.765 5 2013-07-15
08:41:04
Bollettino Sismico Italiano INGV 244789
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1996-04-21 11:02:47 ± 0.273
Latitude 42.2320 ± 0.0160
Longitude 13.7650 ± 0.0223
Depth (km) 5 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 244789

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) 2555.9
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 132
Number of associated phases, regardless of their use for origin computation 20
Number of defining phases 20
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) 0.00259
Epicentral distance of station farthest from the epicenter (degree) 0.01757
Number of stations at which the event was observed 12
Number of stations from which data was used for origin computation 12
Magnitudes information

Md:3.0

Field Value
Value 3.0
Uncertainty
Num. used stations 6
Type of magnitude Md
Reference to an origin 244789
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 20:51:39

ML:1.9

Field Value
Value 1.9
Uncertainty
Num. used stations 7
Type of magnitude ML
Reference to an origin 244789
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
--.FG3.Z. 1996-04-21T11:03:41.88 10.0 undecidable manual SN 106 1.6983 1.68 0.1
--.FB9.Z. 1996-04-21T11:03:38.55 10.0 undecidable manual SN 333 1.6317 0.18 0.6
--.ARV.Z. 1996-04-21T11:03:34.40 10.0 undecidable manual SN 334 1.3875 1.06 0.3
--.MU9.Z. 1996-04-21T11:03:22.41 10.0 undecidable manual PN! 137 1.9536 0.92 0
--.CRE.Z. 1996-04-21T11:03:21.27 10.0 undecidable manual PN 316 1.9092 0.27 1.2
--.MNS.Z. 1996-04-21T11:03:18.28 10.0 undecidable manual SG 280 0.8103 1.41 0.2
--.FG3.Z. 1996-04-21T11:03:18.23 10.0 undecidable manual PN 106 1.6983 0.18 1.4
--.DUI.Z. 1996-04-21T11:03:16.28 10.0 undecidable manual SG 137 0.7659 0.89 0.4
--.FB9.Z. 1996-04-21T11:03:16.68 10.0 undecidable manual PN 333 1.6317 -0.32 1.3
--.ARV.Z. 1996-04-21T11:03:12.76 10.0 undecidable manual PN 334 1.3875 -1.13 0.7
--.RMP.Z. 1996-04-21T11:03:07.68 10.0 undecidable manual PG 242 0.888 1.64 0.3
--.SDI.Z. 1996-04-21T11:03:07.10 10.0 undecidable manual SG 176 0.5217 -0.38 0.7
--.MNS.Z. 1996-04-21T11:03:05.14 10.0 undecidable manual PG 280 0.8103 0.56 1.5
--.RDP.Z. 1996-04-21T11:03:05.00 10.0 undecidable manual PG 238 0.9102 -1.35 0.5
--.DUI.Z. 1996-04-21T11:03:04.45 10.0 undecidable manual PG 137 0.7659 0.71 1.3
--.PQ9.Z. 1996-04-21T11:03:02.40 10.0 undecidable manual SG 232 0.3441 0.94 0.4
--.AQU.Z. 1996-04-21T11:02:59.46 10.0 undecidable manual SG 294 0.2886 0.16 0.7
--.SDI.Z. 1996-04-21T11:02:58.60 10.0 positive manual PG 176 0.5217 -1.11 1.6
--.PQ9.Z. 1996-04-21T11:02:55.59 10.0 positive manual PG 232 0.3441 0.11 3.7
--.AQU.Z. 1996-04-21T11:02:53.93 10.0 positive manual PG 294 0.2886 -0.51 3.1
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