Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of Md 2.8 on date 23-01-1988 and time 02:44:06 (UTC) in region 3 km SE Gildone (CB)

A magnitude Md 2.8 earthquake occured in region: 3 km SE Gildone (CB), on

  • 23-01-1988 02:44:06 (UTC)
  • 23-01-1988 03:44:06 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 41.4880, 14.7600 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
Gildone CB 3 809 809
Cercemaggiore CB 4 3777 4586
Jelsi CB 5 1781 6367
Riccia CB 6 5262 11629
Campodipietra CB 8 2570 14199
Mirabello Sannitico CB 8 2180 16379
Cercepiccola CB 8 681 17060
Ferrazzano CB 9 3344 20404
Toro CB 10 1391 21795
Castelpagano BN 10 1483 23278
San Giuliano del Sannio CB 11 1029 24307
Santa Croce del Sannio BN 11 927 25234
San Giovanni in Galdo CB 11 580 25814
Campobasso CB 12 49431 75245
Gambatesa CB 13 1464 76709
Pietracatella CB 14 1375 78084
Monacilioni CB 14 523 78607
Vinchiaturo CB 14 3324 81931
Matrice CB 15 1115 83046
Sepino CB 15 1964 85010
Sassinoro BN 15 618 85628
Colle Sannita BN 15 2431 88059
Circello BN 15 2388 90447
Tufara CB 16 925 91372
Castelvetere in Val Fortore BN 16 1240 92612
Ripalimosani CB 16 3114 95726
Campolieto CB 17 839 96565
Baranello CB 17 2673 99238
Macchia Valfortore CB 17 576 99814
Sant'Elia a Pianisi CB 18 1818 101632
Morcone BN 18 4932 106564
Busso CB 18 1273 107837
Oratino CB 18 1641 109478
Guardiaregia CB 19 801 110279
Montagano CB 19 1086 111365

Municipalities with at least 50000 inhabitants

An earthquake occurred to
40 Km N of Benevento (60091 inhabitants)
56 Km W of San Severo (53905 inhabitants)
58 Km NE of Caserta (76326 inhabitants)
64 Km N of Avellino (54857 inhabitants)
65 Km W of Foggia (151991 inhabitants)
68 Km NE of Acerra (59573 inhabitants)
73 Km NE of Afragola (65057 inhabitants)
74 Km NE of Aversa (53047 inhabitants)
76 Km NE of Casoria (77642 inhabitants)
78 Km NE of Giugliano in Campania (122974 inhabitants)
81 Km NE of Marano di Napoli (59874 inhabitants)
81 Km NE of Portici (55274 inhabitants)
83 Km NE of Ercolano (53709 inhabitants)
84 Km NE of Napoli (974074 inhabitants)
85 Km N of Scafati (50787 inhabitants)
85 Km NE of Torre del Greco (86275 inhabitants)
88 Km N of Cava de' Tirreni (53659 inhabitants)
90 Km N of Salerno (135261 inhabitants)
91 Km NE of Pozzuoli (81661 inhabitants)
91 Km N of Castellammare di Stabia (66466 inhabitants)
98 Km W of Manfredonia (57279 inhabitants)
99 Km W of Cerignola (58396 inhabitants)
100 Km N 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 2.8
ML-VAX 2.1 		1988-01-23
02:44:06		 41.488 14.76 10 2013-07-15
08:41:04		 Bollettino Sismico Italiano INGV 61539
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1988-01-23 02:44:06 ± 0.163
Latitude 41.4880 ± 0.0125
Longitude 14.7600 ± 0.0137
Depth (km) 10 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 61539

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) 1802.1
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 96
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) 0.5
Epicentral distance of station closest to the epicenter (degree) 0.00251
Epicentral distance of station farthest from the epicenter (degree) 0.01328
Number of stations at which the event was observed 13
Number of stations from which data was used for origin computation 13
Magnitudes information

Md:2.8

Field Value
Value 2.8
Uncertainty
Num. used stations 3
Type of magnitude Md
Reference to an origin 61539
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 17:58:36

ML:2.1

Field Value
Value 2.1
Uncertainty
Num. used stations 2
Type of magnitude ML
Reference to an origin 61539
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
--.CDM.Z. 1988-01-23T02:44:46.00 10.0 undecidable manual SN 109 1.1988 0.2 0.5
--.SGO.Z. 1988-01-23T02:44:42.00 10.0 undecidable manual SG 155 1.0101 0.88 0.2
--.MS1.Z. 1988-01-23T02:44:39.00 10.0 undecidable manual SG 75 0.9102 1.28 0.1
--.SDI.Z. 1988-01-23T02:44:34.00 10.0 undecidable manual SG 287 0.7326 1.62 0.1
--.MGR.Z. 1988-01-23T02:44:32.26 10.0 undecidable manual PN 155 1.4763 -0.68 0.6
--.MT9.Z. 1988-01-23T02:44:31.60 10.0 undecidable manual PN 169 1.2654 1.48 0.1
--.CDM.Z. 1988-01-23T02:44:29.00 10.0 undecidable manual PN 109 1.1988 -0.23 1.1
--.TR9.Z. 1988-01-23T02:44:27.40 10.0 undecidable manual SG 140 0.555 0.74 0.3
--.SGO.Z. 1988-01-23T02:44:26.50 10.0 undecidable manual PG 155 1.0101 -0.03 1.3
--.MS1.Z. 1988-01-23T02:44:25.00 10.0 undecidable manual PG 75 0.9102 0.43 1.1
--.SOR.Z. 1988-01-23T02:44:24.70 10.0 undecidable manual PG 199 0.9546 -0.8 0.7
--.FG2.Z. 1988-01-23T02:44:22.25 10.0 undecidable manual SG 42 0.4329 -0.26 0.6
--.SDI.Z. 1988-01-23T02:44:21.80 10.0 negative manual PG 287 0.7326 0.31 2.8
--.MSC.Z. 1988-01-23T02:44:20.40 10.0 undecidable manual PG 243 0.6549 0.43 1.3
--.OVO.Z. 1988-01-23T02:44:20.90 10.0 undecidable manual PG 202 0.7104 -0.06 1.5
--.SGG.Z. 1988-01-23T02:44:18.00 10.0 undecidable manual SG 250 0.2997 -0.24 0.6
--.TR9.Z. 1988-01-23T02:44:17.50 10.0 undecidable manual PG 140 0.555 -0.68 0.9
--.DUI.Z. 1988-01-23T02:44:17.80 10.0 undecidable manual SG 306 0.2775 0.19 0.6
--.FG2.Z. 1988-01-23T02:44:15.19 10.0 negative manual PG 42 0.4329 -0.6 2.1
--.SGG.Z. 1988-01-23T02:44:12.50 10.0 negative manual PG 250 0.2997 -0.82 1.5
--.DUI.Z. 1988-01-23T02:44:12.80 10.0 negative manual PG 306 0.2775 -0.16 3
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