Earthquake with magnitude of Md 2.5 on date 02-03-1985 and time 20:47:37 (Italy) in region 5 km S Cascia (PG)

A magnitude Md 2.5 earthquake occured in region: 5 km S Cascia (PG), on

  • 02-03-1985 19:47:37 (UTC)
  • 02-03-1985 20:47:37 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.67, 13.01 at 11 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 6 599 3816
Poggiodomo PG 8 117 3933
Leonessa RI 13 2435 6368
Cittareale RI 13 482 6850
Norcia PG 15 4957 11807
Scheggino PG 16 461 12268
Sant'Anatolia di Narco PG 16 564 12832
Vallo di Nera PG 17 364 13196
Polino TR 17 233 13429
Posta RI 18 694 14123
Cerreto di Spoleto PG 18 1075 15198
Ferentillo TR 19 1913 17111
Accumoli RI 19 667 17778

Municipalities with at least 50000 inhabitants

An earthquake occurred to
32 Km E of Terni (111501 inhabitants)
41 Km SE of Foligno (57155 inhabitants)
48 Km NW of L'Aquila (69753 inhabitants)
57 Km W of Teramo (54892 inhabitants)
70 Km SE of Perugia (166134 inhabitants)
78 Km NE of Guidonia Montecelio (88673 inhabitants)
80 Km E of Viterbo (67173 inhabitants)
81 Km N of Tivoli (56533 inhabitants)
95 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 2.5
ML-VAX 2.6
1985-03-02
19:47:37
42.67 13.01 11 2013-07-15
08:40:51
Bollettino Sismico Italiano INGV 2839
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1985-03-02 19:47:37 ± 0.208
Latitude 42.67 ± 0.01
Longitude 13.01 ± 0.02
Depth (km) 11 ± 4 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 2839

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) 2256.4
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 12
Number of defining phases 12
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.5
Epicentral distance of station closest to the epicenter (degree) 0.00097
Epicentral distance of station farthest from the epicenter (degree) 0.01012
Number of stations at which the event was observed 6
Number of stations from which data was used for origin computation 6
Magnitudes information

Md:2.5

Field Value
Value 2.5
Uncertainty
Num. used stations 4
Type of magnitude Md
Reference to an origin 2839
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 17:07:42

ML:2.6

Field Value
Value 2.6
Uncertainty
Num. used stations 1
Type of magnitude ML
Reference to an origin 2839
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
--.SD1.Z. 1985-03-02T19:48:16.50 10.0 undecidable manual SN? 148 0.0101 1.75 0
--.AR1.Z. 1985-03-02T19:48:06.00 10.0 undecidable manual SG 356 0.0074 -0.12 1
--.SD1.Z. 1985-03-02T19:48:00.30 10.0 undecidable manual PN 148 0.0101 1.23 0.4
--.AS1.Z. 1985-03-02T19:47:55.00 10.0 undecidable manual SG 325 0.0042 0.3 1.1
--.AR1.Z. 1985-03-02T19:47:53.50 10.0 undecidable manual PG 356 0.0074 -0.58 1
--.AQU.Z. 1985-03-02T19:47:53.00 10.0 undecidable manual SG 137 0.0038 -0.27 0.7
--.MNS.Z. 1985-03-02T19:47:51.00 10.0 undecidable manual SG 220 0.0033 -0.68 0.7
--.AS1.Z. 1985-03-02T19:47:47.50 10.0 undecidable manual PG 325 0.0042 0.02 2.1
--.AQU.Z. 1985-03-02T19:47:46.00 10.0 undecidable manual PG 137 0.0038 -0.66 1
--.MNS.Z. 1985-03-02T19:47:45.20 10.0 undecidable manual PG 220 0.0033 -0.54 1.4
--.PO9.Z. 1985-03-02T19:47:43.50 10.0 undecidable manual SG 208 0.001 0.25 0.8
--.PO9.Z. 1985-03-02T19:47:41.70 10.0 undecidable manual PG 208 0.001 0.83 0.9
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