Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of Md 2.6 on date 05-05-2003 and time 23:28:49 (Italy) in region 3 km SW Castignano (AP)

A magnitude Md 2.6 earthquake occured in region: 3 km SW Castignano (AP), on

  • 05-05-2003 21:28:49 (UTC)
  • 05-05-2003 23:28:49 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.9250, 13.5960 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.

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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
Castignano AP 3 2796 2796
Rotella AP 4 906 3702
Montedinove AP 5 488 4190
Appignano del Tronto AP 6 1785 5975
Montalto delle Marche AP 7 2122 8097
Ascoli Piceno AP 8 49407 57504
Offida AP 8 5058 62562
Force AP 10 1354 63916
Venarotta AP 10 2066 65982
Cossignano AP 10 978 66960
Castorano AP 11 2380 69340
Castel di Lama AP 11 8634 77974
Palmiano AP 12 196 78170
Montelparo FM 12 778 78948
Monte Rinaldo FM 12 379 79327
Folignano AP 12 9241 88568
Roccafluvione AP 12 2010 90578
Ortezzano FM 12 774 91352
Maltignano AP 13 2401 93753
Montefalcone Appennino FM 13 424 94177
Santa Vittoria in Matenano FM 13 1330 95507
Colli del Tronto AP 14 3668 99175
Carassai AP 14 1100 100275
Monte Vidon Combatte FM 14 433 100708
Monteleone di Fermo FM 15 395 101103
Sant'Egidio alla Vibrata TE 15 9811 110914
Spinetoli AP 15 7215 118129
Smerillo FM 15 365 118494
Comunanza AP 15 3166 121660
Ancarano TE 15 1857 123517
Montottone FM 15 979 124496
Ripatransone AP 16 4309 128805
Monsampolo del Tronto AP 16 4611 133416
Monsampietro Morico FM 16 659 134075
Petritoli FM 17 2335 136410
Monte San Martino MC 17 765 137175
Civitella del Tronto TE 18 5116 142291
Acquaviva Picena AP 18 3831 146122
Torano Nuovo TE 19 1611 147733
Monte Giberto FM 19 801 148534
Montefiore dell'Aso AP 19 2123 150657
Belmonte Piceno FM 19 646 151303
Servigliano FM 19 2336 153639
Monteprandone AP 20 12655 166294
Controguerra TE 20 2436 168730

Municipalities with at least 50000 inhabitants

An earthquake occurred to
31 Km N of Teramo (54892 inhabitants)
64 Km NW of Montesilvano (53738 inhabitants)
66 Km N of L'Aquila (69753 inhabitants)
72 Km NW of Pescara (121014 inhabitants)
73 Km E of Foligno (57155 inhabitants)
77 Km S of Ancona (100861 inhabitants)
79 Km NW of Chieti (51815 inhabitants)
87 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 2.6
ML-VAX 1.7 		2003-05-05
21:28:49		 42.925 13.596 5 2013-07-15
08:41:04		 Bollettino Sismico Italiano INGV 477239
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2003-05-05 21:28:49 ± 0.321
Latitude 42.9250 ± 0.0133
Longitude 13.5960 ± 0.0323
Depth (km) 5 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 477239

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) 3015.9
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 210
Number of associated phases, regardless of their use for origin computation 14
Number of defining phases 14
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) 0.00518
Epicentral distance of station farthest from the epicenter (degree) 0.01238
Number of stations at which the event was observed 9
Number of stations from which data was used for origin computation 9
Magnitudes information

Md:2.6

Field Value
Value 2.6
Uncertainty
Num. used stations 7
Type of magnitude Md
Reference to an origin 477239
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 00:34:09

ML:1.7

Field Value
Value 1.7
Uncertainty
Num. used stations 7
Type of magnitude ML
Reference to an origin 477239
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
--.FSSB.Z. 2003-05-05T21:29:23.79 10.0 undecidable manual SG 321 0.9657 0.27 0.6
--.ARV.Z. 2003-05-05T21:29:17.23 10.0 undecidable manual SG 320 0.7326 0.96 0.1
--.CRE.Z. 2003-05-05T21:29:16.18 10.0 undecidable manual PN 300 1.3764 0.84 0.4
--.ASS.Z. 2003-05-05T21:29:15.40 10.0 undecidable manual SG 281 0.6993 0.45 0.5
--.SDI.Z. 2003-05-05T21:29:13.16 10.0 undecidable manual PN 172 1.221 -0.02 1.5
--.SNTG.Z. 2003-05-05T21:29:11.40 10.0 undecidable manual SG 304 0.5772 0.02 0.7
--.AQU.Z. 2003-05-05T21:29:10.60 10.0 undecidable manual SG 193 0.5883 -0.67 0.3
--.FSSB.Z. 2003-05-05T21:29:08.72 10.0 undecidable manual PG 321 0.9657 -0.43 1.2
--.PTQR.Z. 2003-05-05T21:29:08.93 10.0 undecidable manual PG 188 0.9102 0.82 0.5
--.MNS.Z. 2003-05-05T21:29:06.74 10.0 undecidable manual PG 231 0.8547 -0.41 1.3
--.ASS.Z. 2003-05-05T21:29:04.70 10.0 undecidable manual PG 281 0.6993 -0.13 1.8
--.ARV.Z. 2003-05-05T21:29:04.39 10.0 undecidable manual PG 320 0.7326 -0.57 1
--.SNTG.Z. 2003-05-05T21:29:01.49 10.0 positive manual PG 304 0.5772 -0.44 2.5
--.AQU.Z. 2003-05-05T21:29:01.87 10.0 undecidable manual PG 193 0.5883 -0.21 1.7
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