Earthquake with magnitude of Md 2.2 on date 21-07-2000 and time 00:07:41 (UTC) in region 3 km SW Cerreto di Spoleto (PG)

A magnitude Md 2.2 earthquake occured in region: 3 km SW Cerreto di Spoleto (PG), on

  • 21-07-2000 00:07:41 (UTC)
  • 21-07-2000 02:07:41 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.8010, 12.8860 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
Cerreto di Spoleto PG 3 1075 1075
Vallo di Nera PG 4 364 1439
Sant'Anatolia di Narco PG 8 564 2003
Campello sul Clitunno PG 9 2442 4445
Sellano PG 11 1079 5524
Poggiodomo PG 11 117 5641
Scheggino PG 11 461 6102
Cascia PG 14 3217 9319
Spoleto PG 14 38218 47537
Trevi PG 14 8469 56006
Preci PG 15 724 56730
Norcia PG 17 4957 61687
Monteleone di Spoleto PG 17 599 62286
Castel Ritaldi PG 18 3278 65564

Municipalities with at least 50000 inhabitants

An earthquake occurred to
23 Km SE of Foligno (57155 inhabitants)
33 Km NE of Terni (111501 inhabitants)
53 Km SE of Perugia (166134 inhabitants)
65 Km NW of L'Aquila (69753 inhabitants)
69 Km W of Teramo (54892 inhabitants)
77 Km NE of Viterbo (67173 inhabitants)
90 Km N of Guidonia Montecelio (88673 inhabitants)
93 Km N of Tivoli (56533 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 2.2
ML-VAX 1.6
2000-07-21
00:07:41
42.801 12.886 5 2013-07-15
08:41:04
Bollettino Sismico Italiano INGV 399279
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2000-07-21 00:07:41 ± 0.173
Latitude 42.8010 ± 0.0099
Longitude 12.8860 ± 0.0144
Depth (km) 5 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 399279

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) 1608.9
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 126
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) 0.00146
Epicentral distance of station farthest from the epicenter (degree) 0.00405
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:2.2

Field Value
Value 2.2
Uncertainty
Num. used stations 4
Type of magnitude Md
Reference to an origin 399279
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 23:15:31

ML:1.6

Field Value
Value 1.6
Uncertainty
Num. used stations 1
Type of magnitude ML
Reference to an origin 399279
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
--.MNS.Z. 2000-07-21T00:07:58.22 10.0 undecidable manual SG 200 0.444 0.05 0.5
--.SNTG.Z. 2000-07-21T00:07:57.61 10.0 undecidable manual SG 5 0.444 -0.96 0
--.ASS.Z. 2000-07-21T00:07:53.61 10.0 undecidable manual SG 327 0.3108 0.38 0.4
--.SNTG.Z. 2000-07-21T00:07:50.61 10.0 positive manual PG 5 0.444 -0.57 1
--.MNS.Z. 2000-07-21T00:07:50.75 10.0 positive manual PG 200 0.444 -0.2 2.1
--.ASS.Z. 2000-07-21T00:07:48.61 10.0 negative manual PG 327 0.3108 0.51 1.4
--.NRCA.Z. 2000-07-21T00:07:47.94 10.0 undecidable manual SG 79 0.1665 0.08 0.5
--.NRCA.Z. 2000-07-21T00:07:45.35 10.0 positive manual PG 79 0.1665 0.35 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