Earthquake with magnitude of Md 2.3 on date 09-05-1992 and time 14:21:23 (Italy) in region 6 km NW Cerreto di Spoleto (PG)

A magnitude Md 2.3 earthquake occured in region: 6 km NW Cerreto di Spoleto (PG), on

  • 09-05-1992 12:21:23 (UTC)
  • 09-05-1992 14:21:23 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.8520, 12.8590 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
Cerreto di Spoleto PG 6 1075 1075
Sellano PG 7 1079 2154
Campello sul Clitunno PG 8 2442 4596
Vallo di Nera PG 9 364 4960
Trevi PG 10 8469 13429
Sant'Anatolia di Narco PG 13 564 13993
Preci PG 15 724 14717
Scheggino PG 16 461 15178
Castel Ritaldi PG 16 3278 18456
Spoleto PG 16 38218 56674
Poggiodomo PG 17 117 56791
Foligno PG 17 57155 113946
Montefalco PG 17 5679 119625
Cascia PG 19 3217 122842
Monte Cavallo MC 20 145 122987

Municipalities with at least 50000 inhabitants

An earthquake occurred to
17 Km SE of Foligno (57155 inhabitants)
37 Km NE of Terni (111501 inhabitants)
48 Km SE of Perugia (166134 inhabitants)
71 Km NW of L'Aquila (69753 inhabitants)
72 Km W of Teramo (54892 inhabitants)
78 Km NE of Viterbo (67173 inhabitants)
95 Km N of Guidonia Montecelio (88673 inhabitants)
99 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 2.3
ML-VAX 1.6
1992-05-09
12:21:23
42.852 12.859 10 2013-07-15
08:41:04
Bollettino Sismico Italiano INGV 164159
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1992-05-09 12:21:23 ± 0.076
Latitude 42.8520 ± 0.0045
Longitude 12.8590 ± 0.0073
Depth (km) 10 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 164159

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) 778.8
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 128
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) 0.1
Epicentral distance of station closest to the epicenter (degree) 0.00227
Epicentral distance of station farthest from the epicenter (degree) 0.00583
Number of stations at which the event was observed 6
Number of stations from which data was used for origin computation 6
Magnitudes information

Md:2.3

Field Value
Value 2.3
Uncertainty
Num. used stations 3
Type of magnitude Md
Reference to an origin 164159
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 19:33:27

ML:1.6

Field Value
Value 1.6
Uncertainty
Num. used stations 3
Type of magnitude ML
Reference to an origin 164159
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
--.ARV.Z. 1992-05-09T12:21:46.27 10.0 undecidable manual SG 5 0.6438 -0.03 0.4
--.ALP.Z. 1992-05-09T12:21:42.50 10.0 undecidable manual SG 97 0.5217 0.24 0.2
--.MNS.Z. 1992-05-09T12:21:40.50 10.0 undecidable manual SG 195 0.4773 -0.5 0
--.CIO.Z. 1992-05-09T12:21:38.00 10.0 undecidable manual SG 31 0.3996 -0.31 0.2
--.ARV.Z. 1992-05-09T12:21:36.41 10.0 undecidable manual PG 5 0.6438 -0.27 0.4
--.RMF.Z. 1992-05-09T12:21:34.00 10.0 undecidable manual SG 67 0.2664 -0.29 0.3
--.ALP.Z. 1992-05-09T12:21:34.30 10.0 undecidable manual PG 97 0.5217 -0.04 1.2
--.ASS.Z. 1992-05-09T12:21:33.80 10.0 undecidable manual SG 324 0.2553 0.04 0.6
--.MNS.Z. 1992-05-09T12:21:33.65 10.0 negative manual PG 195 0.4773 0.03 2.6
--.CIO.Z. 1992-05-09T12:21:32.00 10.0 undecidable manual PG 31 0.3996 -0.06 2.7
--.RMF.Z. 1992-05-09T12:21:30.00 10.0 undecidable manual PG 67 0.2664 0.26 1.2
--.ASS.Z. 1992-05-09T12:21:29.58 10.0 negative manual PG 324 0.2553 0.14 2.2
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
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