Earthquake with magnitude of ML 2.1 on date 20-08-2005 and time 11:54:50 (Italy) in region 5 km NW Monte Cavallo (MC)

A magnitude ML 2.1 earthquake occured in region: 5 km NW Monte Cavallo (MC), on

  • 20-08-2005 09:54:50 (UTC)
  • 20-08-2005 11:54:50 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.0230, 12.9500 at 23 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 5 145 145
Serravalle di Chienti MC 6 1070 1215
Pieve Torina MC 9 1458 2673
Muccia MC 10 915 3588
Fiordimonte MC 12 202 3790
Pievebovigliana MC 12 866 4656
Sefro MC 14 422 5078
Sellano PG 15 1079 6157
Visso MC 15 1107 7264
Camerino MC 16 6974 14238
Nocera Umbra PG 16 5839 20077
Valtopina PG 16 1398 21475
Fiastra MC 17 559 22034
Preci PG 18 724 22758
Pioraco MC 18 1134 23892
Ussita MC 18 444 24336
Acquacanina MC 18 121 24457
Fiuminata MC 19 1402 25859

Municipalities with at least 50000 inhabitants

An earthquake occurred to
21 Km E of Foligno (57155 inhabitants)
47 Km E of Perugia (166134 inhabitants)
57 Km NE of Terni (111501 inhabitants)
74 Km NW of Teramo (54892 inhabitants)
81 Km SW of Ancona (100861 inhabitants)
83 Km NW of L'Aquila (69753 inhabitants)
92 Km S of Fano (60888 inhabitants)
96 Km NE of Viterbo (67173 inhabitants)
99 Km S of Pesaro (94582 inhabitants)
100 Km SE of Arezzo (99543 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 2.5
ML 2.1
2005-08-20
09:54:50
43.023 12.95 23 2014-10-21
12:27:13
Bollettino Sismico Italiano INGV 530629
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2005-08-20 09:54:50 ± 0.14
Latitude 43.0230 ± 0.0027
Longitude 12.9500 ± 0.0111
Depth (km) 23 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-SISPICK
Event type earthquake
Origin ID 530629

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 857
Semi-minor axis of confidence ellipse (meter) 386
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 98
Circular confidence region, given by single value of horizontal uncertainty (meter) 948.7
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 111
Number of associated phases, regardless of their use for origin computation 25
Number of defining phases 18
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.31
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.76442
Number of stations at which the event was observed 15
Number of stations from which data was used for origin computation 9
Magnitudes information

ML:2.1

Field Value
Value 2.1
Uncertainty 0.4
Num. used stations
Type of magnitude ML
Reference to an origin 530629
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 10:15:57

Md:2.5

Field Value
Value 2.5
Uncertainty 0.2
Num. used stations
Type of magnitude Md
Reference to an origin 530629
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 10:15:57
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.FAGN.EHN. 2005-08-20T09:55:31.37 10.0 undecidable manual Sg 0 0 0
MN.CUC.HHE. 2005-08-20T09:55:31.96 10.0 undecidable manual Pg 0 0 0
IV.CRE.EHN. 2005-08-20T09:55:24.84 10.0 undecidable manual Pg 0 0 0
IV.FAGN.EHN. 2005-08-20T09:55:17.39 10.0 undecidable manual Pg 0 0 0
IV.FIAM.HHZ. 2005-08-20T09:55:17.94 0.1 undecidable manual Sg 171 84.8484 -0.348 43
IV.AOI.BHE. 2005-08-20T09:55:17.71 10.0 undecidable manual Pg 0 0 0
IV.FSSB.SHZ. 2005-08-20T09:55:15.34 0.3 undecidable manual Sg 349 75.5688 -0.238 34
IV.CERT.HHZ. 2005-08-20T09:55:15.10 10.0 undecidable manual Pg 0 0 0
IV.MNS.BHZ. 2005-08-20T09:55:14.95 0.1 undecidable manual Sg 197 74.0703 -0.195 45
IV.TERO.HHZ. 2005-08-20T09:55:13.78 0.1 undecidable manual Sg 130 69.2751 0.025 48
IV.SACS.HHE. 2005-08-20T09:55:10.39 10.0 undecidable manual Pg 0 0 0
IV.ARVD.EHZ. 2005-08-20T09:55:08.67 0.1 undecidable manual Sg 359 52.7028 -0.324 47
IV.ARV.SHZ. 2005-08-20T09:55:08.78 0.1 undecidable manual Sg 359 52.6029 -0.215 48
IV.MURB.HHZ. 2005-08-20T09:55:07.20 0.1 undecidable manual Sg 308 43.5231 0.746 41
IV.CING.HHN. 2005-08-20T09:55:06.58 0.1 undecidable manual Sg 27 43.8228 0.047 50
IV.FIAM.HHZ. 2005-08-20T09:55:06.48 0.1 undecidable manual Pg 171 84.8484 0.28 89
IV.FSSB.SHZ. 2005-08-20T09:55:05.03 0.1 undecidable manual Pg 349 75.5688 0.353 88
IV.MNS.BHZ. 2005-08-20T09:55:04.30 0.1 undecidable manual Pg 197 74.0703 -0.133 92
IV.TERO.HHZ. 2005-08-20T09:55:03.69 0.1 undecidable manual Pg 130 69.2751 0.037 96
IV.NRCA.SHZ. 2005-08-20T09:55:01.99 0.1 undecidable manual Sg 148 24.9528 0.313 49
IV.ARVD.EHZ. 2005-08-20T09:55:00.86 0.1 undecidable manual Pg 359 52.7028 -0.121 97
IV.ARV.SHZ. 2005-08-20T09:55:00.87 0.1 undecidable manual Pg 359 52.6029 -0.102 98
IV.MURB.HHZ. 2005-08-20T09:54:59.40 0.1 undecidable manual Pg 308 43.5231 -0.153 98
IV.CING.HHN. 2005-08-20T09:54:59.75 0.1 undecidable manual Pg 27 43.8228 0.155 98
IV.NRCA.SHZ. 2005-08-20T09:54:56.68 0.1 undecidable manual Pg 148 24.9528 -0.187 100
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