Earthquake with magnitude of Md 2.4 on date 28-07-1999 and time 17:23:04 (Italy) in region 4 km S Matelica (MC)

A magnitude Md 2.4 earthquake occured in region: 4 km S Matelica (MC), on

  • 28-07-1999 15:23:04 (UTC)
  • 28-07-1999 17:23:04 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.2220, 13.0060 at 39 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
Matelica MC 4 9981 9981
Castelraimondo MC 4 4587 14568
Pioraco MC 5 1134 15702
Gagliole MC 6 620 16322
Esanatoglia MC 6 2034 18356
Fiuminata MC 7 1402 19758
Sefro MC 10 422 20180
Camerino MC 11 6974 27154
Cerreto d'Esi AN 11 3817 30971
San Severino Marche MC 14 12726 43697
Fabriano AN 15 31480 75177
Serrapetrona MC 16 966 76143
Muccia MC 16 915 77058
Serravalle di Chienti MC 17 1070 78128
Gualdo Tadino PG 18 15208 93336
Poggio San Vicino MC 18 246 93582
Pievebovigliana MC 19 866 94448
Belforte del Chienti MC 20 1886 96334
Pieve Torina MC 20 1458 97792

Municipalities with at least 50000 inhabitants

An earthquake occurred to
38 Km NE of Foligno (57155 inhabitants)
52 Km E of Perugia (166134 inhabitants)
61 Km SW of Ancona (100861 inhabitants)
69 Km S of Fano (60888 inhabitants)
77 Km S of Pesaro (94582 inhabitants)
79 Km NE of Terni (111501 inhabitants)
85 Km NW of Teramo (54892 inhabitants)
95 Km E of Arezzo (99543 inhabitants)
100 Km SE of Rimini (147750 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 1999-07-28
15:23:04
43.222 13.006 39 2013-07-15
08:40:51
Bollettino Sismico Italiano INGV 371239
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1999-07-28 15:23:04 ± 0.413
Latitude 43.2220 ± 0.0147
Longitude 13.0060 ± 0.0380
Depth (km) 39 ± 4 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 371239

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) 3488.3
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 177
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) 0.4
Epicentral distance of station closest to the epicenter (degree) 0.00049
Epicentral distance of station farthest from the epicenter (degree) 0.01020
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:2.4

Field Value
Value 2.4
Uncertainty
Num. used stations 4
Type of magnitude Md
Reference to an origin 371239
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 22:48:22
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
--.PGD.Z. 1999-07-28T15:23:38.37 10.0 undecidable manual S 305 1.1322 0.16 0.3
--.PGD.Z. 1999-07-28T15:23:24.85 10.0 undecidable manual P 305 1.1322 0.9 0.2
--.FB9.Z. 1999-07-28T15:23:23.10 10.0 undecidable manual S 340 0.4995 -0.25 0.5
--.NRCA.Z. 1999-07-28T15:23:21.50 10.0 undecidable manual S 168 0.3996 0.48 0.4
--.ARV.Z. 1999-07-28T15:23:19.48 10.0 undecidable manual S 350 0.2775 0.81 0.2
--.ASS.Z. 1999-07-28T15:23:19.25 10.0 undecidable manual S 238 0.2997 0.14 0.6
--.SNTG.Z. 1999-07-28T15:23:16.69 10.0 undecidable manual S 304 0.0555 0.84 0.1
--.FB9.Z. 1999-07-28T15:23:15.00 10.0 undecidable manual P 340 0.4995 -0.33 1.2
--.NRCA.Z. 1999-07-28T15:23:14.20 10.0 undecidable manual P 168 0.3996 0.17 1.5
--.ARV.Z. 1999-07-28T15:23:12.21 10.0 positive manual P 350 0.2775 -0.46 2.1
--.ASS.Z. 1999-07-28T15:23:12.41 10.0 positive manual P 238 0.2997 -0.52 1.8
--.SNTG.Z. 1999-07-28T15:23:10.85 10.0 positive manual P 304 0.0555 -0.19 3
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