Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of Md 2.9 on date 31-10-2002 and time 14:34:59 (UTC) in region 4 km E Casacalenda (CB)

A magnitude Md 2.9 earthquake occured in region: 4 km E Casacalenda (CB), on

  • 31-10-2002 14:34:59 (UTC)
  • 31-10-2002 15:34:59 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 41.7300, 14.8960 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.

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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
Casacalenda CB 4 2135 2135
Bonefro CB 4 1384 3519
Montelongo CB 5 365 3884
Montorio nei Frentani CB 5 437 4321
Provvidenti CB 6 119 4440
San Giuliano di Puglia CB 8 1042 5482
Larino CB 8 6793 12275
Santa Croce di Magliano CB 8 4435 16710
Ripabottoni CB 9 514 17224
Rotello CB 9 1212 18436
Colletorto CB 10 1938 20374
Morrone del Sannio CB 10 587 20961
Guardialfiera CB 12 1065 22026
Sant'Elia a Pianisi CB 12 1818 23844
Ururi CB 14 2693 26537
Lupara CB 14 505 27042
Castellino del Biferno CB 14 545 27587
Campolieto CB 15 839 28426
Monacilioni CB 15 523 28949
Macchia Valfortore CB 15 576 29525
Castelbottaccio CB 16 312 29837
Pietracatella CB 17 1375 31212
Carlantino FG 17 980 32192
Petrella Tifernina CB 17 1170 33362
Lucito CB 17 696 34058
Civitacampomarano CB 18 417 34475
San Martino in Pensilis CB 18 4793 39268
Castelmauro CB 19 1505 40773
Acquaviva Collecroce CB 20 672 41445
Celenza Valfortore FG 20 1598 43043
Montecilfone CB 20 1348 44391
Palata CB 20 1726 46117
San Giovanni in Galdo CB 20 580 46697

Municipalities with at least 50000 inhabitants

An earthquake occurred to
41 Km W of San Severo (53905 inhabitants)
62 Km W of Foggia (151991 inhabitants)
67 Km N of Benevento (60091 inhabitants)
86 Km W of Manfredonia (57279 inhabitants)
87 Km NE of Caserta (76326 inhabitants)
91 Km N of Avellino (54857 inhabitants)
92 Km SE of Chieti (51815 inhabitants)
97 Km NE of Acerra (59573 inhabitants)
99 Km NW of Cerignola (58396 inhabitants)
99 Km SE of Pescara (121014 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 2.9
ML-VAX 2.2 		2002-10-31
14:34:59		 41.73 14.896 10 2013-07-15
08:41:04		 Bollettino Sismico Italiano INGV 457469
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2002-10-31 14:34:59 ± 0.355
Latitude 41.7300 ± 0.0249
Longitude 14.8960 ± 0.0192
Depth (km) 10 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 457469

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) 3190.2
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 166
Number of associated phases, regardless of their use for origin computation 21
Number of defining phases 21
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.8
Epicentral distance of station closest to the epicenter (degree) 0.00405
Epicentral distance of station farthest from the epicenter (degree) 0.01498
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:2.9

Field Value
Value 2.9
Uncertainty
Num. used stations 5
Type of magnitude Md
Reference to an origin 457469
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 00:13:06

ML:2.2

Field Value
Value 2.2
Uncertainty
Num. used stations 9
Type of magnitude ML
Reference to an origin 457469
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
--.SGO.Z. 2002-10-31T14:35:39.92 10.0 undecidable manual SN 164 1.1988 1.6 0.2
--.MRLC.Z. 2002-10-31T14:35:36.29 10.0 undecidable manual SN 154 1.0656 1.3 0.3
--.CSSN.Z. 2002-10-31T14:35:29.10 10.0 undecidable manual SG 173 0.8769 0.07 0.9
--.RFI.Z. 2002-10-31T14:35:28.17 10.0 undecidable manual SG 237 0.7992 1.34 0.3
--.MGR.Z. 2002-10-31T14:35:27.70 10.0 undecidable manual PN 162 1.665 -0.3 1.4
--.FGMS.Z. 2002-10-31T14:35:27.27 10.0 undecidable manual SG 90 0.777 0.96 0.5
--.FG4.Z. 2002-10-31T14:35:26.60 10.0 undecidable manual SG 141 0.7548 0.76 0.6
--.SLCN.Z. 2002-10-31T14:35:25.82 10.0 undecidable manual PN 156 1.443 0.81 1.1
--.PTQR.Z. 2002-10-31T14:35:22.42 10.0 undecidable manual PN 284 1.1433 1.53 0.5
--.SGO.Z. 2002-10-31T14:35:21.47 10.0 undecidable manual PN 164 1.1988 -0.25 1.8
--.RNI2.Z. 2002-10-31T14:35:19.25 10.0 undecidable manual SG 267 0.5439 0.46 0.8
--.MRLC.Z. 2002-10-31T14:35:18.72 10.0 undecidable manual PN 154 1.0656 -1.08 1
--.FG5.Z. 2002-10-31T14:35:18.17 10.0 undecidable manual SG 147 0.5217 0.29 0.8
--.RFI.Z. 2002-10-31T14:35:16.17 10.0 undecidable manual PG 237 0.7992 1.08 1.1
--.CSSN.Z. 2002-10-31T14:35:15.64 10.0 undecidable manual PG 173 0.8769 -0.72 1.6
--.FG4.Z. 2002-10-31T14:35:14.32 10.0 undecidable manual PG 141 0.7548 0.11 2.2
--.FGMS.Z. 2002-10-31T14:35:14.43 10.0 undecidable manual PG 90 0.777 -0.36 2
--.CPI2.Z. 2002-10-31T14:35:14.36 10.0 undecidable manual SG 251 0.444 -1.2 0.4
--.RNI2.Z. 2002-10-31T14:35:09.77 10.0 undecidable manual PG 267 0.5439 -0.68 1.7
--.FG5.Z. 2002-10-31T14:35:08.85 10.0 undecidable manual PG 147 0.5217 -1.07 1.1
--.CPI2.Z. 2002-10-31T14:35:07.31 10.0 undecidable manual PG 251 0.444 -1.28 0.8
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