Earthquake with magnitude of Md 2.0 on date 23-09-1994 and time 01:50:25 (Italy) in region 3 km E Ussita (MC)

A magnitude Md 2.0 earthquake occured in region: 3 km E Ussita (MC), on

  • 22-09-1994 23:50:25 (UTC)
  • 23-09-1994 01:50:25 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.9490, 13.1810 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
Ussita MC 3 444 444
Castelsantangelo sul Nera MC 6 281 725
Bolognola MC 6 142 867
Visso MC 8 1107 1974
Acquacanina MC 9 121 2095
Fiastra MC 10 559 2654
Fiordimonte MC 12 202 2856
Montefortino FM 13 1178 4034
Montemonaco AP 13 604 4638
Sarnano MC 14 3264 7902
Preci PG 14 724 8626
Amandola FM 15 3629 12255
Pievebovigliana MC 15 866 13121
Pieve Torina MC 15 1458 14579
Monte Cavallo MC 15 145 14724
Montegallo AP 17 523 15247
Gualdo MC 19 815 16062
Muccia MC 19 915 16977
Norcia PG 19 4957 21934
Cessapalombo MC 19 512 22446
Comunanza AP 19 3166 25612

Municipalities with at least 50000 inhabitants

An earthquake occurred to
39 Km E of Foligno (57155 inhabitants)
54 Km NW of Teramo (54892 inhabitants)
61 Km NE of Terni (111501 inhabitants)
67 Km E of Perugia (166134 inhabitants)
69 Km N of L'Aquila (69753 inhabitants)
79 Km SW of Ancona (100861 inhabitants)
93 Km NW of Montesilvano (53738 inhabitants)
100 Km NW of Pescara (121014 inhabitants)
100 Km S of Fano (60888 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 2.0 1994-09-22
23:50:25
42.949 13.181 10 2013-07-15
08:41:04
Bollettino Sismico Italiano INGV 216779
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1994-09-22 23:50:25 ± 0.275
Latitude 42.9490 ± 0.0101
Longitude 13.1810 ± 0.0287
Depth (km) 10 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 216779

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) 2591.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 182
Number of associated phases, regardless of their use for origin computation 8
Number of defining phases 8
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) 0.00356
Epicentral distance of station farthest from the epicenter (degree) 0.00599
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:2.0

Field Value
Value 2.0
Uncertainty
Num. used stations 1
Type of magnitude Md
Reference to an origin 216779
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 20:24:35
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
--.MNS.Z. 1994-09-22T23:50:49.13 10.0 undecidable manual SG 212 0.666 0.48 0.4
--.AQU.Z. 1994-09-22T23:50:46.52 10.0 undecidable manual SG 164 0.6105 -0.3 0.6
--.ARV.Z. 1994-09-22T23:50:45.80 10.0 undecidable manual SG 342 0.5772 0.28 0.7
--.ASS.Z. 1994-09-22T23:50:40.68 10.0 undecidable manual SG 286 0.3996 0.72 0.3
--.AQU.Z. 1994-09-22T23:50:38.46 10.0 undecidable manual PG 164 0.6105 0.8 0.5
--.MNS.Z. 1994-09-22T23:50:38.19 10.0 positive manual PG 212 0.666 -0.52 2.1
--.ARV.Z. 1994-09-22T23:50:36.53 10.0 undecidable manual PG 342 0.5772 -0.37 1.5
--.ASS.Z. 1994-09-22T23:50:33.78 10.0 undecidable manual PG 286 0.3996 0.09 1.9
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