Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of Md 2.5 on date 17-07-1996 and time 15:44:53 (Italy) in region 1 km E San Gregorio Magno (SA)

A magnitude Md 2.5 earthquake occured in region: 1 km E San Gregorio Magno (SA), on

  • 17-07-1996 13:44:53 (UTC)
  • 17-07-1996 15:44:53 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 40.6560, 15.4120 at 5 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
San Gregorio Magno SA 1 4286 4286
Romagnano al Monte SA 4 368 4654
Buccino SA 5 5047 9701
Ricigliano SA 6 1144 10845
Salvitelle SA 8 560 11405
Balvano PZ 9 1830 13235
Palomonte SA 10 3985 17220
Vietri di Potenza PZ 10 2832 20052
Auletta SA 11 2336 22388
Caggiano SA 12 2765 25153
Muro Lucano PZ 13 5497 30650
Colliano SA 13 3638 34288
Pertosa SA 13 690 34978
Sicignano degli Alburni SA 14 3519 38497
Petina SA 14 1159 39656
Contursi Terme SA 14 3394 43050
Castelgrande PZ 15 943 43993
Valva SA 15 1643 45636
Savoia di Lucania PZ 15 1127 46763
Oliveto Citra SA 15 3802 50565
Bella PZ 16 5171 55736
Baragiano PZ 16 2671 58407
Laviano SA 17 1438 59845
Polla SA 17 5279 65124
Sant'Angelo Le Fratte PZ 17 1429 66553
Postiglione SA 19 2151 68704
Santomenna SA 19 443 69147
Picerno PZ 19 5985 75132
Castelnuovo di Conza SA 20 619 75751
Senerchia AV 20 842 76593

Municipalities with at least 50000 inhabitants

An earthquake occurred to
33 Km W of Potenza (67122 inhabitants)
37 Km E of Battipaglia (50786 inhabitants)
55 Km E of Salerno (135261 inhabitants)
59 Km SE of Avellino (54857 inhabitants)
60 Km E of Cava de' Tirreni (53659 inhabitants)
75 Km SE of Benevento (60091 inhabitants)
75 Km E of Scafati (50787 inhabitants)
79 Km E of Castellammare di Stabia (66466 inhabitants)
80 Km SW of Cerignola (58396 inhabitants)
89 Km E of Torre del Greco (86275 inhabitants)
90 Km S of Foggia (151991 inhabitants)
91 Km E of Portici (55274 inhabitants)
91 Km E of Ercolano (53709 inhabitants)
93 Km E of Acerra (59573 inhabitants)
97 Km E of Afragola (65057 inhabitants)
98 Km SW of Andria (100440 inhabitants)
98 Km W of Altamura (70396 inhabitants)
98 Km E of Casoria (77642 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 2.5 1996-07-17
13:44:53		 40.656 15.412 5 2013-07-15
08:40:51		 Bollettino Sismico Italiano INGV 249409
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1996-07-17 13:44:53 ± 0.143
Latitude 40.6560 ± 0.0071
Longitude 15.4120 ± 0.0136
Depth (km) 5 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 249409

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) 1395.6
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 118
Number of associated phases, regardless of their use for origin computation 14
Number of defining phases 14
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.4
Epicentral distance of station closest to the epicenter (degree) 0.00105
Epicentral distance of station farthest from the epicenter (degree) 0.01012
Number of stations at which the event was observed 9
Number of stations from which data was used for origin computation 9
Magnitude information

Md:2.5

Field Value
Value 2.5
Uncertainty
Num. used stations 3
Type of magnitude Md
Reference to an origin 249409
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 20:55:57
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
--.FG3.Z. 1996-07-17T13:45:15.79 10.0 undecidable manual PN 20 1.1211 0.07 0.8
--.CI9.Z. 1996-07-17T13:45:07.26 10.0 undecidable manual SG 304 0.3552 -0.1 0.7
--.FG5.Z. 1996-07-17T13:45:07.23 10.0 undecidable manual PG 350 0.6327 0.36 0.9
--.SL9.Z. 1996-07-17T13:45:05.83 10.0 undecidable manual SG 147 0.3108 0.12 0.7
--.FG4.Z. 1996-07-17T13:45:04.40 10.0 undecidable manual PG 9 0.4773 0.37 1.1
--.MGR.Z. 1996-07-17T13:45:04.16 10.0 undecidable manual PG 168 0.5217 -0.76 0.4
--.CA9.Z. 1996-07-17T13:45:02.10 10.0 undecidable manual SG 5 0.2442 -0.94 0.1
--.SL9.Z. 1996-07-17T13:45:00.35 10.0 undecidable manual PG 147 0.3108 -0.18 1.6
--.CI9.Z. 1996-07-17T13:45:00.63 10.0 undecidable manual PG 304 0.3552 -0.86 0.3
--.CA9.Z. 1996-07-17T13:44:59.61 10.0 undecidable manual PG 5 0.2442 0.62 0.8
--.SGO.Z. 1996-07-17T13:44:58.43 10.0 undecidable manual SG 219 0.1221 -0.17 0.7
--.MU9.Z. 1996-07-17T13:44:57.75 10.0 undecidable manual SG 29 0.1221 -0.68 0.3
--.MU9.Z. 1996-07-17T13:44:56.44 10.0 negative manual PG 29 0.1221 0.11 3.4
--.SGO.Z. 1996-07-17T13:44:56.88 10.0 positive manual PG 219 0.1221 0.45 2.2
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