Earthquake with magnitude of Md 2.7 on date 21-06-1990 and time 04:11:54 (Italy) in region 2 km SW Campello sul Clitunno (PG)

A magnitude Md 2.7 earthquake occured in region: 2 km SW Campello sul Clitunno (PG), on

  • 21-06-1990 02:11:54 (UTC)
  • 21-06-1990 04:11:54 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.81, 12.75 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
Campello sul Clitunno PG 2 2442 2442
Castel Ritaldi PG 7 3278 5720
Trevi PG 8 8469 14189
Spoleto PG 8 38218 52407
Vallo di Nera PG 10 364 52771
Sant'Anatolia di Narco PG 11 564 53335
Scheggino PG 12 461 53796
Montefalco PG 13 5679 59475
Cerreto di Spoleto PG 13 1075 60550
Giano dell'Umbria PG 15 3846 64396
Sellano PG 17 1079 65475
Foligno PG 17 57155 122630
Poggiodomo PG 18 117 122747
Bevagna PG 18 5081 127828
Massa Martana PG 19 3770 131598
Gualdo Cattaneo PG 20 6155 137753

Municipalities with at least 50000 inhabitants

An earthquake occurred to
17 Km S of Foligno (57155 inhabitants)
29 Km NE of Terni (111501 inhabitants)
45 Km SE of Perugia (166134 inhabitants)
69 Km NE of Viterbo (67173 inhabitants)
73 Km NW of L'Aquila (69753 inhabitants)
79 Km W of Teramo (54892 inhabitants)
90 Km N of Guidonia Montecelio (88673 inhabitants)
94 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
Rev 1000 Md 2.7
ML-VAX 1.9
1990-06-21
02:11:54
42.81 12.75 5 2013-07-15
08:41:04
Bollettino Sismico Italiano INGV 121339
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1990-06-21 02:11:54 ± 0.24
Latitude 42.81 ± 0.01
Longitude 12.75 ± 0.02
Depth (km) 5 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 121339

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) 1758.6
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 176
Number of associated phases, regardless of their use for origin computation 19
Number of defining phases 19
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) 0.00235
Epicentral distance of station farthest from the epicenter (degree) 0.01206
Number of stations at which the event was observed 11
Number of stations from which data was used for origin computation 11
Magnitudes information

Md:2.7

Field Value
Value 2.7
Uncertainty
Num. used stations 3
Type of magnitude Md
Reference to an origin 121339
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 18:52:42

ML:1.9

Field Value
Value 1.9
Uncertainty
Num. used stations 4
Type of magnitude ML
Reference to an origin 121339
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 Takeoff_angle Residual Weight
--.AOI.Z. 1990-06-21T02:12:29.19 10.0 undecidable manual SG 39 0.0087 1.23 0
--.CRE.Z. 1990-06-21T02:12:29.00 10.0 undecidable manual SG 324 0.009 -0.11 0.6
--.SDI.Z. 1990-06-21T02:12:20.50 10.0 undecidable manual PN 144 0.0121 1.02 0.2
--.AQU.Z. 1990-06-21T02:12:19.70 10.0 undecidable manual SG 133 0.0059 0.92 0.2
--.ARV.Z. 1990-06-21T02:12:19.90 10.0 undecidable manual SG 11 0.0063 0.29 0.7
--.ALP.Z. 1990-06-21T02:12:16.22 10.0 undecidable manual SG 92 0.0053 0.04 0.8
--.CRE.Z. 1990-06-21T02:12:14.50 10.0 undecidable manual PG 324 0.009 0.17 1.5
--.AOI.Z. 1990-06-21T02:12:13.25 10.0 undecidable manual PG 39 0.0087 -0.42 1.2
--.AZI.Z. 1990-06-21T02:12:13.00 10.0 undecidable manual PG 148 0.0087 -0.65 0.8
--.CIO.Z. 1990-06-21T02:12:11.89 10.0 undecidable manual SG 36 0.0043 -0.54 0.5
--.SSO.Z. 1990-06-21T02:12:09.20 10.0 undecidable manual PG 44 0.0062 0.49 1.3
--.ARV.Z. 1990-06-21T02:12:08.22 10.0 undecidable manual PG 11 0.0063 -0.63 1
--.RM8.Z. 1990-06-21T02:12:08.40 10.0 undecidable manual SG 66 0.0032 0.13 0.7
--.AQU.Z. 1990-06-21T02:12:07.55 10.0 undecidable manual PG 133 0.0059 -0.45 1.3
--.ALP.Z. 1990-06-21T02:12:06.49 10.0 undecidable manual PG 92 0.0053 -0.38 1.5
--.CIO.Z. 1990-06-21T02:12:04.10 10.0 undecidable manual PG 36 0.0043 -0.69 0.8
--.ASS.Z. 1990-06-21T02:12:04.43 10.0 undecidable manual SG 343 0.0023 -0.05 0.8
--.RM8.Z. 1990-06-21T02:12:02.39 10.0 positive manual PG 66 0.0032 0.09 3.8
--.ASS.Z. 1990-06-21T02:12:00.50 10.0 undecidable manual PG 343 0.0023 0.39 1.5
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
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