Earthquake with magnitude of Md 3.2 on date 21-01-1985 and time 07:14:56 (Italy) in region 2 km NW San Lorenzello (BN)

A magnitude Md 3.2 earthquake occured in region: 2 km NW San Lorenzello (BN), on

  • 21-01-1985 06:14:56 (UTC)
  • 21-01-1985 07:14:56 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 41.2960, 14.5280 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.

Municipalities within 20 km from the epicenter

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
San Lorenzello BN 2 2227 2227
Cerreto Sannita BN 3 3940 6167
Faicchio BN 4 3634 9801
Cusano Mutri BN 5 4091 13892
Pietraroja BN 6 545 14437
Castelvenere BN 7 2562 16999
Gioia Sannitica CE 7 3638 20637
San Salvatore Telesino BN 7 3999 24636
Guardia Sanframondi BN 7 5078 29714
Telese Terme BN 8 7486 37200
San Lorenzo Maggiore BN 10 2154 39354
San Lupo BN 10 801 40155
Puglianello BN 10 1349 41504
Solopaca BN 11 3820 45324
Amorosi BN 11 2797 48121
San Potito Sannitico CE 12 1925 50046
Morcone BN 13 4932 54978
Ruviano CE 14 1655 56633
Pontelandolfo BN 14 2167 58800
Castel Campagnano CE 14 1581 60381
Sassinoro BN 14 618 60999
Piedimonte Matese CE 15 11297 72296
Sepino CB 15 1964 74260
Casalduni BN 15 1378 75638
Castello del Matese CE 15 1494 77132
Melizzano BN 15 1858 78990
Frasso Telesino BN 15 2318 81308
Guardiaregia CB 16 801 82109
Paupisi BN 16 1633 83742
Alife CE 16 7616 91358
San Gregorio Matese CE 16 988 92346
Ponte BN 16 2580 94926
Alvignano CE 17 4824 99750
Vitulano BN 17 2944 102694
Campolattaro BN 17 1072 103766
Campochiaro CB 17 646 104412
Torrecuso BN 18 3407 107819
Dragoni CE 18 2108 109927
San Polo Matese CB 19 470 110397
Cautano BN 19 2044 112441
Caiazzo CE 19 5595 118036
Dugenta BN 19 2798 120834
Foglianise BN 20 3385 124219

Municipalities with at least 50000 inhabitants

An earthquake occurred to
28 Km NW of Benevento (60091 inhabitants)
29 Km NE of Caserta (76326 inhabitants)
41 Km NE of Acerra (59573 inhabitants)
45 Km NE of Aversa (53047 inhabitants)
45 Km NE of Afragola (65057 inhabitants)
48 Km NE of Casoria (77642 inhabitants)
48 Km NW of Avellino (54857 inhabitants)
49 Km NE of Giugliano in Campania (122974 inhabitants)
52 Km NE of Marano di Napoli (59874 inhabitants)
54 Km N of Portici (55274 inhabitants)
56 Km NE of Napoli (974074 inhabitants)
56 Km N of Ercolano (53709 inhabitants)
58 Km N of Torre del Greco (86275 inhabitants)
61 Km N of Scafati (50787 inhabitants)
62 Km NE of Pozzuoli (81661 inhabitants)
67 Km N of Castellammare di Stabia (66466 inhabitants)
68 Km N of Cava de' Tirreni (53659 inhabitants)
71 Km N of Salerno (135261 inhabitants)
83 Km SW of San Severo (53905 inhabitants)
86 Km NW of Battipaglia (50786 inhabitants)
87 Km W of Foggia (151991 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 3.2 1985-01-21
06:14:56
41.296 14.528 10 2013-07-15
08:41:04
Bollettino Sismico Italiano INGV 689
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1985-01-21 06:14:56 ± 0.415
Latitude 41.2960 ± 0.0459
Longitude 14.5280 ± 0.0423
Depth (km) 10 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 689

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) 6213.3
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 141
Number of associated phases, regardless of their use for origin computation 8
Number of defining phases 8
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.6
Epicentral distance of station closest to the epicenter (degree) 0.00130
Epicentral distance of station farthest from the epicenter (degree) 0.00607
Number of stations at which the event was observed 5
Number of stations from which data was used for origin computation 5
Magnitude information

Md:3.2

Field Value
Value 3.2
Uncertainty
Num. used stations 3
Type of magnitude Md
Reference to an origin 689
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 17:05:55
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
--.TR9.Z. 1985-01-21T06:15:17.20 10.0 undecidable manual SG 114 0.0052 0.11 0.5
--.SD1.Z. 1985-01-21T06:15:11.00 10.0 undecidable manual PG 307 0.0061 0.89 0.7
--.DUI.Z. 1985-01-21T06:15:11.00 10.0 undecidable manual SG 351 0.0032 0.88 0.1
--.TR9.Z. 1985-01-21T06:15:08.50 10.0 undecidable manual PG 114 0.0052 0.14 1.3
--.MSC.Z. 1985-01-21T06:15:05.30 10.0 undecidable manual PG 256 0.0038 -0.24 1.4
--.SGG.Z. 1985-01-21T06:15:03.70 10.0 undecidable manual SG 308 0.0013 0.71 0.5
--.DUI.Z. 1985-01-21T06:15:01.80 10.0 undecidable manual PG 351 0.0032 -2.54 0.2
--.SGG.Z. 1985-01-21T06:15:00.00 10.0 undecidable manual PG 308 0.0013 -0.22 3.3
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, http://terremoti.ingv.it/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