Earthquake with magnitude of Md 2.8 on date 18-08-1996 and time 03:50:24 (Italy) in region 5 km SE Sellano (PG)

A magnitude Md 2.8 earthquake occured in region: 5 km SE Sellano (PG), on

  • 18-08-1996 01:50:24 (UTC)
  • 18-08-1996 03:50:24 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.86, 12.97 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.

Municipalities within 20 km from the epicenter

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Sellano PG 5 1079 1079
Cerreto di Spoleto PG 6 1075 2154
Preci PG 7 724 2878
Norcia PG 13 4957 7835
Vallo di Nera PG 13 364 8199
Visso MC 13 1107 9306
Cascia PG 16 3217 12523
Monte Cavallo MC 16 145 12668
Campello sul Clitunno PG 16 2442 15110
Castelsantangelo sul Nera MC 16 281 15391
Poggiodomo PG 16 117 15508
Sant'Anatolia di Narco PG 17 564 16072
Ussita MC 17 444 16516
Trevi PG 18 8469 24985
Scheggino PG 19 461 25446

Municipalities with at least 50000 inhabitants

An earthquake occurred to
24 Km E of Foligno (57155 inhabitants)
42 Km NE of Terni (111501 inhabitants)
55 Km SE of Perugia (166134 inhabitants)
64 Km W of Teramo (54892 inhabitants)
66 Km NW of L'Aquila (69753 inhabitants)
86 Km NE of Viterbo (67173 inhabitants)
96 Km SW of Ancona (100861 inhabitants)
97 Km N of Guidonia Montecelio (88673 inhabitants)
100 Km N of Tivoli (56533 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
Rev 1000 Md 2.8
ML-VAX 1.8
1996-08-18
01:50:24
42.86 12.97 5 2013-07-15
08:41:04
Bollettino Sismico Italiano INGV 251189
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1996-08-18 01:50:24 ± 0.246
Latitude 42.86 ± 0.01
Longitude 12.97 ± 0.03
Depth (km) 5 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 251189

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) 3103.8
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 148
Number of associated phases, regardless of their use for origin computation 17
Number of defining phases 17
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) 0.00275
Epicentral distance of station farthest from the epicenter (degree) 0.01222
Number of stations at which the event was observed 12
Number of stations from which data was used for origin computation 12
Magnitudes information

Md:2.8

Field Value
Value 2.8
Uncertainty
Num. used stations 9
Type of magnitude Md
Reference to an origin 251189
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 20:57:37

ML:1.8

Field Value
Value 1.8
Uncertainty
Num. used stations 8
Type of magnitude ML
Reference to an origin 251189
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 Takeoff_angle Residual Weight
--.CRE.Z. 1996-08-18T01:51:01.93 10.0 undecidable manual SG 316 0.0096 0.18 0.5
--.FB9.Z. 1996-08-18T01:50:55.39 10.0 undecidable manual SG 350 0.0076 0.56 0.5
--.SFI.Z. 1996-08-18T01:50:51.85 10.0 undecidable manual PN 322 0.0119 2.05 0.1
--.PGD.Z. 1996-08-18T01:50:51.42 10.0 undecidable manual PN 318 0.0122 1.11 0.6
--.SDI.Z. 1996-08-18T01:50:51.28 10.0 undecidable manual PN 150 0.0117 1.77 0.2
--.RSM.Z. 1996-08-18T01:50:47.83 10.0 undecidable manual PN 340 0.0102 0.64 1.1
--.ARV.Z. 1996-08-18T01:50:47.36 10.0 undecidable manual SG 358 0.0057 -0.92 0.4
--.RDP.Z. 1996-08-18T01:50:46.28 10.0 undecidable manual PN 189 0.01 -0.58 1.1
--.CRE.Z. 1996-08-18T01:50:45.75 10.0 undecidable manual PG 316 0.0096 -0.37 1.3
--.MNS.Z. 1996-08-18T01:50:44.30 10.0 undecidable manual SG 203 0.0046 -0.14 0.6
--.PQ9.Z. 1996-08-18T01:50:42.42 10.0 undecidable manual PG 158 0.008 -0.54 1.3
--.FB9.Z. 1996-08-18T01:50:41.17 10.0 undecidable manual PG 350 0.0076 -0.95 0.9
--.ARV.Z. 1996-08-18T01:50:37.57 10.0 positive manual PG 358 0.0057 -0.77 2.2
--.AQU.Z. 1996-08-18T01:50:37.42 10.0 undecidable manual PG 147 0.0053 -0.03 1.6
--.ASS.Z. 1996-08-18T01:50:36.65 10.0 undecidable manual SG 311 0.0028 -0.14 0.6
--.MNS.Z. 1996-08-18T01:50:35.41 10.0 positive manual PG 203 0.0046 -0.56 2.6
--.ASS.Z. 1996-08-18T01:50:31.45 10.0 undecidable manual PG 311 0.0028 -0.26 1.5
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
Download
Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download