Earthquake with magnitude of Md 2.3 on date 28-09-1994 and time 08:28:15 (Italy) in region 5 km SW Cascia (PG)

A magnitude Md 2.3 earthquake occured in region: 5 km SW Cascia (PG), on

  • 28-09-1994 07:28:15 (UTC)
  • 28-09-1994 08:28:15 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.68, 12.99 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
Cascia PG 5 3217 3217
Monteleone di Spoleto PG 5 599 3816
Poggiodomo PG 6 117 3933
Scheggino PG 13 461 4394
Leonessa RI 14 2435 6829
Sant'Anatolia di Narco PG 14 564 7393
Vallo di Nera PG 14 364 7757
Norcia PG 15 4957 12714
Cittareale RI 16 482 13196
Polino TR 16 233 13429
Cerreto di Spoleto PG 17 1075 14504
Ferentillo TR 18 1913 16417
Posta RI 20 694 17111

Municipalities with at least 50000 inhabitants

An earthquake occurred to
31 Km E of Terni (111501 inhabitants)
39 Km SE of Foligno (57155 inhabitants)
50 Km NW of L'Aquila (69753 inhabitants)
59 Km W of Teramo (54892 inhabitants)
68 Km SE of Perugia (166134 inhabitants)
78 Km E of Viterbo (67173 inhabitants)
79 Km N of Guidonia Montecelio (88673 inhabitants)
81 Km N of Tivoli (56533 inhabitants)
97 Km W of Montesilvano (53738 inhabitants)
97 Km NE of Roma (2864731 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 2.3
ML-VAX 1.9
1994-09-28
07:28:15
42.68 12.99 5 2013-07-15
08:41:04
Bollettino Sismico Italiano INGV 217399
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1994-09-28 07:28:15 ± 0.265
Latitude 42.68 ± 0.01
Longitude 12.99 ± 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 217399

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) 2646.6
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 139
Number of associated phases, regardless of their use for origin computation 9
Number of defining phases 9
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) 0.00332
Epicentral distance of station farthest from the epicenter (degree) 0.01028
Number of stations at which the event was observed 5
Number of stations from which data was used for origin computation 5
Magnitudes information

Md:2.3

Field Value
Value 2.3
Uncertainty
Num. used stations 3
Type of magnitude Md
Reference to an origin 217399
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 20:25:11

ML:1.9

Field Value
Value 1.9
Uncertainty
Num. used stations 2
Type of magnitude ML
Reference to an origin 217399
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
--.ARV.Z. 1994-09-28T07:28:43.95 10.0 undecidable manual SG 357 0.0073 -0.54 0.5
--.SDI.Z. 1994-09-28T07:28:39.50 10.0 undecidable manual PN 147 0.0103 1.53 0.3
--.ARV.Z. 1994-09-28T07:28:33.00 10.0 undecidable manual PG 357 0.0073 0.81 1.2
--.AQU.Z. 1994-09-28T07:28:32.10 10.0 undecidable manual SG 136 0.004 -0.59 0.4
--.ASS.Z. 1994-09-28T07:28:32.20 10.0 undecidable manual SG 326 0.004 -0.63 0.6
--.MNS.Z. 1994-09-28T07:28:29.42 10.0 undecidable manual SG 217 0.0033 -0.52 0.7
--.ASS.Z. 1994-09-28T07:28:25.28 10.0 undecidable manual PG 326 0.004 -0.18 2
--.MNS.Z. 1994-09-28T07:28:24.12 10.0 undecidable manual PG 217 0.0033 0.33 2.1
--.AQU.Z. 1994-09-28T07:28:24.84 10.0 undecidable manual PG 136 0.004 -0.49 1.2
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
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Type Description Link
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