Earthquake with magnitude of Md 2.0 on date 22-08-2004 and time 19:50:33 (UTC) in region 3 km N Monte Cavallo (MC)

A magnitude Md 2.0 earthquake occured in region: 3 km N Monte Cavallo (MC), on

  • 22-08-2004 19:50:33 (UTC)
  • 22-08-2004 21:50:33 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.0200, 12.9990 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
Monte Cavallo MC 3 145 145
Pieve Torina MC 5 1458 1603
Serravalle di Chienti MC 7 1070 2673
Fiordimonte MC 8 202 2875
Muccia MC 8 915 3790
Pievebovigliana MC 9 866 4656
Visso MC 12 1107 5763
Fiastra MC 13 559 6322
Camerino MC 14 6974 13296
Ussita MC 14 444 13740
Acquacanina MC 14 121 13861
Sefro MC 15 422 14283
Sellano PG 16 1079 15362
Preci PG 16 724 16086
Pioraco MC 18 1134 17220
Castelsantangelo sul Nera MC 19 281 17501
Bolognola MC 19 142 17643
Fiuminata MC 20 1402 19045
Nocera Umbra PG 20 5839 24884

Municipalities with at least 50000 inhabitants

An earthquake occurred to
25 Km E of Foligno (57155 inhabitants)
51 Km E of Perugia (166134 inhabitants)
59 Km NE of Terni (111501 inhabitants)
70 Km NW of Teramo (54892 inhabitants)
79 Km SW of Ancona (100861 inhabitants)
81 Km NW of L'Aquila (69753 inhabitants)
92 Km S of Fano (60888 inhabitants)
99 Km NE of Viterbo (67173 inhabitants)
99 Km S of Pesaro (94582 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 2004-08-22
19:50:33
43.02 12.999 10 2013-07-15
08:41:04
Bollettino Sismico Italiano INGV 503479
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2004-08-22 19:50:33 ± 0.096
Latitude 43.0200 ± 0.0058
Longitude 12.9990 ± 0.0108
Depth (km) 10 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 503479

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) 1085.3
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 123
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) 0.2
Epicentral distance of station closest to the epicenter (degree) 0.00178
Epicentral distance of station farthest from the epicenter (degree) 0.00534
Number of stations at which the event was observed 6
Number of stations from which data was used for origin computation 6
Magnitude information

Md:2.0

Field Value
Value 2.0
Uncertainty
Num. used stations 4
Type of magnitude Md
Reference to an origin 503479
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 01:01:38
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
--.TERO.E. 2004-08-22T19:50:55.77 10.0 undecidable manual SG? 131 0.5883 0.82 0
--.ARV.Z. 2004-08-22T19:50:51.38 10.0 undecidable manual SG 355 0.4773 0.12 0.5
--.MURB.N. 2004-08-22T19:50:50.17 10.0 undecidable manual SG 305 0.4107 0.76 0
--.CING.E. 2004-08-22T19:50:48.53 10.0 undecidable manual SG 21 0.3774 0.38 0.2
--.TERO.E. 2004-08-22T19:50:45.75 10.0 undecidable manual PG 131 0.5883 -0.32 0.5
--.ASS.Z. 2004-08-22T19:50:43.83 10.0 undecidable manual SG 279 0.2553 -0.25 0.4
--.ARV.Z. 2004-08-22T19:50:43.73 10.0 undecidable manual PG 355 0.4773 -0.21 1
--.MURB.N. 2004-08-22T19:50:42.77 10.0 undecidable manual PG 305 0.4107 -0.09 1.4
--.CING.Z. 2004-08-22T19:50:42.10 10.0 positive manual PG 21 0.3774 -0.04 3.1
--.NRCA.Z. 2004-08-22T19:50:42.52 10.0 undecidable manual SG 155 0.1998 0.12 0.6
--.NRCA.Z. 2004-08-22T19:50:39.20 10.0 negative manual PG 155 0.1998 0.2 2.2
--.ASS.Z. 2004-08-22T19:50:39.65 10.0 undecidable manual PG 279 0.2553 -0.14 1.3
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
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