Earthquake with magnitude of Md 2.8 on date 24-01-1993 and time 00:53:44 (Italy) in region 4 km E Trevi (PG)

A magnitude Md 2.8 earthquake occured in region: 4 km E Trevi (PG), on

  • 23-01-1993 23:53:44 (UTC)
  • 24-01-1993 00:53:44 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.888, 12.795 at 4 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
Trevi PG 4 8469 8469
Campello sul Clitunno PG 8 2442 10911
Foligno PG 11 57155 68066
Sellano PG 11 1079 69145
Montefalco PG 12 5679 74824
Castel Ritaldi PG 12 3278 78102
Cerreto di Spoleto PG 13 1075 79177
Vallo di Nera PG 14 364 79541
Spello PG 15 8645 88186
Bevagna PG 16 5081 93267
Sant'Anatolia di Narco PG 18 564 93831
Spoleto PG 18 38218 132049
Giano dell'Umbria PG 19 3846 135895
Valtopina PG 19 1398 137293
Gualdo Cattaneo PG 20 6155 143448
Scheggino PG 20 461 143909

Municipalities with at least 50000 inhabitants

An earthquake occurred to
11 Km SE of Foligno (57155 inhabitants)
38 Km NE of Terni (111501 inhabitants)
41 Km SE of Perugia (166134 inhabitants)
77 Km NE of Viterbo (67173 inhabitants)
77 Km NW of L'Aquila (69753 inhabitants)
79 Km W of Teramo (54892 inhabitants)
98 Km SE of Arezzo (99543 inhabitants)
99 Km N of Guidonia Montecelio (88673 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 2.8
ML-VAX 1.9
1993-01-23
23:53:44
42.888 12.795 4 2013-07-15
08:40:51
Bollettino Sismico Italiano INGV 179269
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1993-01-23 23:53:44 ± 0.38
Latitude 42.8880 ± 0.0121
Longitude 12.7950 ± 0.0324
Depth (km) 4 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 179269

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) 2963.3
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 129
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) 0.5
Epicentral distance of station closest to the epicenter (degree) 0.00178
Epicentral distance of station farthest from the epicenter (degree) 0.0293
Number of stations at which the event was observed 13
Number of stations from which data was used for origin computation 13
Magnitudes information

Md:2.8

Field Value
Value 2.8
Uncertainty
Num. used stations 7
Type of magnitude Md
Reference to an origin 179269
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 19:48:08

ML:1.9

Field Value
Value 1.9
Uncertainty
Num. used stations 5
Type of magnitude ML
Reference to an origin 179269
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
--.CTI.Z. 1993-01-23T23:54:36.19 10.0 undecidable manual PN 345 0.0293 0.16 1
--.PGD.Z. 1993-01-23T23:54:26.15 10.0 undecidable manual SN 321 0.0113 -0.12 0.7
--.RDP.Z. 1993-01-23T23:54:23.75 10.0 undecidable manual SN 182 0.0101 0.48 0.6
--.RMP.Z. 1993-01-23T23:54:22.38 10.0 undecidable manual SG 183 0.0096 0.44 0.6
--.BDI.Z. 1993-01-23T23:54:18.40 10.0 undecidable manual PN 307 0.0178 -0.02 1.4
--.CRE.Z. 1993-01-23T23:54:18.66 10.0 undecidable manual SG 320 0.0086 0.7 0.5
--.PII.Z. 1993-01-23T23:54:17.74 10.0 undecidable manual PN 297 0.0166 1.1 0.5
--.SDI.Z. 1993-01-23T23:54:12.30 10.0 undecidable manual PN 147 0.0125 1.86 0.1
--.PGD.Z. 1993-01-23T23:54:07.53 10.0 undecidable manual PN 321 0.0113 -0.98 0.8
--.SFI.Z. 1993-01-23T23:54:07.59 10.0 undecidable manual PN 326 0.011 -0.49 1.5
--.ARV.Z. 1993-01-23T23:54:07.78 10.0 undecidable manual SG 9 0.0055 0.56 0.6
--.RDP.Z. 1993-01-23T23:54:05.38 10.0 undecidable manual PN 182 0.0101 -1.39 0.4
--.RSM.Z. 1993-01-23T23:54:05.33 10.0 undecidable manual PG 346 0.0096 -0.52 1.5
--.RMP.Z. 1993-01-23T23:54:05.62 10.0 undecidable manual PG 183 0.0096 -0.4 1.6
--.CRE.Z. 1993-01-23T23:54:03.59 10.0 undecidable manual PG 320 0.0086 -0.13 1.8
--.AQU.Z. 1993-01-23T23:53:58.63 10.0 undecidable manual PG 139 0.0062 -0.3 1.7
--.ARV.Z. 1993-01-23T23:53:57.60 10.0 undecidable manual PG 9 0.0055 -0.45 1.6
--.ASS.Z. 1993-01-23T23:53:52.20 10.0 undecidable manual SG 329 0.0018 0.03 0.7
--.ASS.Z. 1993-01-23T23:53:49.50 10.0 undecidable manual PG 329 0.0018 0.67 1.3
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
Download
Type Description Link
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