Earthquake with magnitude of Md 2.9 on date 23-03-1997 and time 07:01:35 (Italy) in region 2 km E Sepino (CB)

A magnitude Md 2.9 earthquake occured in region: 2 km E Sepino (CB), on

  • 23-03-1997 06:01:35 (UTC)
  • 23-03-1997 07:01:35 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 41.4060, 14.6380 at 11 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
Sepino CB 2 1964 1964
Sassinoro BN 4 618 2582
San Giuliano del Sannio CB 6 1029 3611
Cercepiccola CB 7 681 4292
Morcone BN 8 4932 9224
Santa Croce del Sannio BN 8 927 10151
Guardiaregia CB 9 801 10952
Cercemaggiore CB 9 3777 14729
Pietraroja BN 10 545 15274
Vinchiaturo CB 11 3324 18598
Campochiaro CB 12 646 19244
Mirabello Sannitico CB 13 2180 21424
Cusano Mutri BN 13 4091 25515
San Polo Matese CB 13 470 25985
Pontelandolfo BN 14 2167 28152
Castelpagano BN 14 1483 29635
Ferrazzano CB 14 3344 32979
Gildone CB 15 809 33788
Baranello CB 15 2673 36461
Cerreto Sannita BN 15 3940 40401
Colle d'Anchise CB 15 807 41208
Circello BN 15 2388 43596
Campolattaro BN 15 1072 44668
San Lupo BN 16 801 45469
Bojano CB 16 8058 53527
San Lorenzello BN 16 2227 55754
Guardia Sanframondi BN 17 5078 60832
Casalduni BN 17 1378 62210
Colle Sannita BN 17 2431 64641
Campobasso CB 17 49431 114072
San Lorenzo Maggiore BN 17 2154 116226
Busso CB 18 1273 117499
Jelsi CB 18 1781 119280
Riccia CB 19 5262 124542
Faicchio BN 19 3634 128176
Campodipietra CB 19 2570 130746
Spinete CB 20 1320 132066
Gioia Sannitica CE 20 3638 135704
Reino BN 20 1210 136914

Municipalities with at least 50000 inhabitants

An earthquake occurred to
33 Km NW of Benevento (60091 inhabitants)
45 Km NE of Caserta (76326 inhabitants)
56 Km NE of Acerra (59573 inhabitants)
56 Km N of Avellino (54857 inhabitants)
60 Km NE of Aversa (53047 inhabitants)
60 Km NE of Afragola (65057 inhabitants)
63 Km NE of Casoria (77642 inhabitants)
64 Km NE of Giugliano in Campania (122974 inhabitants)
68 Km NE of Marano di Napoli (59874 inhabitants)
69 Km NE of Portici (55274 inhabitants)
69 Km W of San Severo (53905 inhabitants)
71 Km NE of Ercolano (53709 inhabitants)
71 Km NE of Napoli (974074 inhabitants)
72 Km NE of Torre del Greco (86275 inhabitants)
74 Km N of Scafati (50787 inhabitants)
76 Km W of Foggia (151991 inhabitants)
77 Km NE of Pozzuoli (81661 inhabitants)
79 Km N of Cava de' Tirreni (53659 inhabitants)
80 Km N of Castellammare di Stabia (66466 inhabitants)
82 Km N of Salerno (135261 inhabitants)
93 Km NW of Battipaglia (50786 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 1.6
1997-03-23
06:01:35
41.406 14.638 11 2013-07-15
08:40:51
Bollettino Sismico Italiano INGV 263719
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1997-03-23 06:01:35 ± 0.106
Latitude 41.4060 ± 0.0089
Longitude 14.6380 ± 0.0095
Depth (km) 11 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 263719

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) 1265.8
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 72
Number of associated phases, regardless of their use for origin computation 27
Number of defining phases 27
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.3
Epicentral distance of station closest to the epicenter (degree) 0.00049
Epicentral distance of station farthest from the epicenter (degree) 0.00923
Number of stations at which the event was observed 17
Number of stations from which data was used for origin computation 17
Magnitudes information

Md:2.9

Field Value
Value 2.9
Uncertainty
Num. used stations 3
Type of magnitude Md
Reference to an origin 263719
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 21:09:26

ML:1.6

Field Value
Value 1.6
Uncertainty
Num. used stations 5
Type of magnitude ML
Reference to an origin 263719
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. 1997-03-23T06:01:55.71 10.0 undecidable manual PN 72 1.0212 0.31 0.9
--.SGO.Z. 1997-03-23T06:01:54.86 10.0 undecidable manual PG 148 0.9768 0.12 1.2
--.MU9.Z. 1997-03-23T06:01:53.50 10.0 undecidable manual PG 134 0.9102 0.19 1.2
--.FG5.Z. 1997-03-23T06:01:53.59 10.0 undecidable manual SG 104 0.4884 0.63 0.3
--.RFI.Z. 1997-03-23T06:01:52.96 10.0 undecidable manual SG 258 0.4995 -0.41 0.5
--.CA9.Z. 1997-03-23T06:01:51.00 10.0 undecidable manual PG 129 0.777 -0.06 1.4
--.RMI2.Z. 1997-03-23T06:01:48.38 10.0 undecidable manual SG 241 0.3108 0.81 0.1
--.CI9.Z. 1997-03-23T06:01:48.00 10.0 undecidable manual PG 151 0.6105 0.1 1.6
--.MRB1.Z. 1997-03-23T06:01:48.68 10.0 undecidable manual SG 138 0.3663 -0.68 0.2
--.SDI.Z. 1997-03-23T06:01:48.56 10.0 undecidable manual PG 296 0.6882 -0.67 0.4
--.DUI.Z. 1997-03-23T06:01:47.00 10.0 undecidable manual SG 331 0.2775 0.53 0.4
--.RFI.Z. 1997-03-23T06:01:46.13 10.0 undecidable manual PG 258 0.4995 0.37 1.3
--.FG2.Z. 1997-03-23T06:01:46.66 10.0 undecidable manual PG 44 0.555 -0.15 1.7
--.CPI2.Z. 1997-03-23T06:01:46.14 10.0 undecidable manual SG 306 0.2997 -0.73 0.2
--.FG5.Z. 1997-03-23T06:01:45.41 10.0 undecidable manual PG 104 0.4884 -0.11 1.8
--.PSB1.Z. 1997-03-23T06:01:45.00 10.0 undecidable manual SG 144 0.2109 0.52 0.4
--.DSB1.Z. 1997-03-23T06:01:45.72 10.0 undecidable manual SG 115 0.2775 -0.57 0.3
--.VTB1.Z. 1997-03-23T06:01:45.66 10.0 undecidable manual SG 181 0.2109 1.21 0
--.MRB1.Z. 1997-03-23T06:01:43.15 10.0 undecidable manual PG 138 0.3663 -0.29 1.6
--.DUI.Z. 1997-03-23T06:01:42.00 10.0 undecidable manual PG 331 0.2775 0.22 1.8
--.CPI2.Z. 1997-03-23T06:01:42.23 10.0 undecidable manual PG 306 0.2997 0.22 1.8
--.RMI2.Z. 1997-03-23T06:01:42.49 10.0 undecidable manual PG 241 0.3108 0.08 2
--.DSB1.Z. 1997-03-23T06:01:41.90 10.0 undecidable manual PG 115 0.2775 0.23 1.7
--.PSB1.Z. 1997-03-23T06:01:40.20 10.0 undecidable manual PG 144 0.2109 -0.43 1.2
--.SMB1.Z. 1997-03-23T06:01:40.00 10.0 undecidable manual SG 101 0.0555 0.26 0.7
--.VTB1.Z. 1997-03-23T06:01:39.79 10.0 undecidable manual PG 181 0.2109 -0.82 0.3
--.SMB1.Z. 1997-03-23T06:01:37.98 10.0 undecidable manual PG 101 0.0555 0.09 2
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