Earthquake with magnitude of Md 2.4 on date 27-04-1994 and time 10:53:58 (Italy) in region 1 km SE Visso (MC)

A magnitude Md 2.4 earthquake occured in region: 1 km SE Visso (MC), on

  • 27-04-1994 08:53:58 (UTC)
  • 27-04-1994 10:53:58 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.9270, 13.0920 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
Visso MC 1 1107 1107
Ussita MC 4 444 1551
Castelsantangelo sul Nera MC 6 281 1832
Preci PG 7 724 2556
Monte Cavallo MC 11 145 2701
Fiordimonte MC 12 202 2903
Fiastra MC 13 559 3462
Bolognola MC 13 142 3604
Acquacanina MC 13 121 3725
Pieve Torina MC 14 1458 5183
Sellano PG 14 1079 6262
Norcia PG 15 4957 11219
Pievebovigliana MC 15 866 12085
Muccia MC 18 915 13000
Cerreto di Spoleto PG 19 1075 14075
Montemonaco AP 19 604 14679
Serravalle di Chienti MC 20 1070 15749

Municipalities with at least 50000 inhabitants

An earthquake occurred to
32 Km E of Foligno (57155 inhabitants)
55 Km NE of Terni (111501 inhabitants)
58 Km NW of Teramo (54892 inhabitants)
61 Km E of Perugia (166134 inhabitants)
69 Km NW of L'Aquila (69753 inhabitants)
84 Km SW of Ancona (100861 inhabitants)
98 Km W of Montesilvano (53738 inhabitants)
99 Km NE of Viterbo (67173 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 2.4
ML-VAX 2.1
1994-04-27
08:53:58
42.927 13.092 5 2013-07-15
08:41:04
Bollettino Sismico Italiano INGV 208639
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1994-04-27 08:53:58 ± 0.636
Latitude 42.9270 ± 0.0235
Longitude 13.0920 ± 0.0546
Depth (km) 5 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 208639

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) 5162.1
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 204
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) 0.6
Epicentral distance of station closest to the epicenter (degree) 0.00308
Epicentral distance of station farthest from the epicenter (degree) 0.01230
Number of stations at which the event was observed 4
Number of stations from which data was used for origin computation 4
Magnitudes information

Md:2.4

Field Value
Value 2.4
Uncertainty
Num. used stations 3
Type of magnitude Md
Reference to an origin 208639
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 20:16:35

ML:2.1

Field Value
Value 2.1
Uncertainty
Num. used stations 2
Type of magnitude ML
Reference to an origin 208639
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(km) Takeoff_angle Residual Weight
--.PGD.Z. 1994-04-27T08:54:43.00 10.0 undecidable manual SN 313 1.3653 0.2 0.6
--.PGD.Z. 1994-04-27T08:54:24.50 10.0 undecidable manual PN 313 1.3653 0.51 1.3
--.AQU.Z. 1994-04-27T08:54:22.30 10.0 undecidable manual SG 157 0.6105 1.38 0.2
--.MNS.Z. 1994-04-27T08:54:21.00 10.0 undecidable manual SG 209 0.6105 -0.06 0.9
--.MNS.Z. 1994-04-27T08:54:11.93 10.0 undecidable manual PG 209 0.6105 0.5 1.9
--.ASS.Z. 1994-04-27T08:54:10.50 10.0 undecidable manual SG 292 0.3441 -1.33 0.3
--.AQU.Z. 1994-04-27T08:54:10.00 10.0 undecidable manual PG 157 0.6105 -1.35 0.6
--.ASS.Z. 1994-04-27T08:54:06.37 10.0 undecidable manual PG 292 0.3441 0.27 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