Earthquake with magnitude of Md 2.1 on date 21-03-1997 and time 05:43:20 (Italy) in region E Sassinoro (BN)

A magnitude Md 2.1 earthquake occured in region: E Sassinoro (BN), on

  • 21-03-1997 04:43:20 (UTC)
  • 21-03-1997 05:43:20 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 41.3750, 14.6690 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
Sassinoro BN 1 618 618
Morcone BN 4 4932 5550
Sepino CB 6 1964 7514
Santa Croce del Sannio BN 6 927 8441
San Giuliano del Sannio CB 9 1029 9470
Cercepiccola CB 10 681 10151
Pontelandolfo BN 10 2167 12318
Pietraroja BN 10 545 12863
Cercemaggiore CB 11 3777 16640
Campolattaro BN 11 1072 17712
Circello BN 12 2388 20100
Castelpagano BN 12 1483 21583
Guardiaregia CB 13 801 22384
Casalduni BN 13 1378 23762
San Lupo BN 13 801 24563
Cerreto Sannita BN 14 3940 28503
Colle Sannita BN 14 2431 30934
Cusano Mutri BN 14 4091 35025
Guardia Sanframondi BN 14 5078 40103
San Lorenzo Maggiore BN 14 2154 42257
Vinchiaturo CB 15 3324 45581
San Lorenzello BN 15 2227 47808
Mirabello Sannitico CB 16 2180 49988
Reino BN 16 1210 51198
Campochiaro CB 16 646 51844
Fragneto l'Abate BN 16 1049 52893
Gildone CB 16 809 53702
Fragneto Monforte BN 16 1840 55542
San Polo Matese CB 17 470 56012
Ferrazzano CB 17 3344 59356
Ponte BN 18 2580 61936
Castelvenere BN 19 2562 64498
Riccia CB 19 5262 69760
Faicchio BN 19 3634 73394
Baranello CB 19 2673 76067
San Marco dei Cavoti BN 19 3371 79438
Jelsi CB 19 1781 81219
Colle d'Anchise CB 20 807 82026
Pesco Sannita BN 20 1972 83998
Paupisi BN 20 1633 85631

Municipalities with at least 50000 inhabitants

An earthquake occurred to
29 Km NW of Benevento (60091 inhabitants)
44 Km NE of Caserta (76326 inhabitants)
52 Km N of Avellino (54857 inhabitants)
54 Km NE of Acerra (59573 inhabitants)
59 Km NE of Afragola (65057 inhabitants)
59 Km NE of Aversa (53047 inhabitants)
61 Km NE of Casoria (77642 inhabitants)
63 Km NE of Giugliano in Campania (122974 inhabitants)
66 Km NE of Marano di Napoli (59874 inhabitants)
67 Km NE of Portici (55274 inhabitants)
68 Km NE of Ercolano (53709 inhabitants)
69 Km SW of San Severo (53905 inhabitants)
69 Km NE of Napoli (974074 inhabitants)
70 Km NE of Torre del Greco (86275 inhabitants)
71 Km N of Scafati (50787 inhabitants)
74 Km W of Foggia (151991 inhabitants)
75 Km N of Cava de' Tirreni (53659 inhabitants)
76 Km NE of Pozzuoli (81661 inhabitants)
77 Km N of Castellammare di Stabia (66466 inhabitants)
78 Km N of Salerno (135261 inhabitants)
89 Km N of Battipaglia (50786 inhabitants)
Recent and historical seismicity
Seismic hazard
Shakemap
Felt maps
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
Bulletin
Rev1000
Md 2.1 1997-03-21
04:43:20
41.375 14.669 10 2013-07-15
08:40:51
Bollettino Sismico Italiano INGV 263099
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1997-03-21 04:43:20 ± 0.291
Latitude 41.3750 ± 0.0311
Longitude 14.6690 ± 0.0208
Depth (km) 10 ± 3 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 263099

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) 3867.5
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 174
Number of associated phases, regardless of their use for origin computation 7
Number of defining phases 7
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) 0.00032
Epicentral distance of station farthest from the epicenter (degree) 0.00291
Number of stations at which the event was observed 4
Number of stations from which data was used for origin computation 4
Magnitude information

Md:2.1

Field Value
Value 2.1
Uncertainty
Num. used stations 2
Type of magnitude Md
Reference to an origin 263099
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 21:08:53
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
--.VTB1.Z. 1997-03-21T04:43:28.26 10.0 undecidable manual SG 188 0.1887 0.04 0.8
--.PSB1.Z. 1997-03-21T04:43:28.29 10.0 undecidable manual SG 144 0.1776 0.33 0.5
--.RMI2.Z. 1997-03-21T04:43:27.42 10.0 undecidable manual PG 248 0.3219 0.16 1.4
--.PSB1.Z. 1997-03-21T04:43:24.45 10.0 undecidable manual PG 144 0.1776 -0.18 1.8
--.VTB1.Z. 1997-03-21T04:43:24.51 10.0 undecidable manual PG 188 0.1887 -0.27 1.5
--.SMB1.Z. 1997-03-21T04:43:24.69 10.0 undecidable manual SG 62 0.0333 0.78 0.1
--.SMB1.Z. 1997-03-21T04:43:21.80 10.0 undecidable manual PG 62 0.0333 -0.49 0.8
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
Download
Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download