Earthquake with magnitude of Md 2.4 on date 26-01-1993 and time 00:26:21 (Italy) in region 6 km NE Trevi (PG)

A magnitude Md 2.4 earthquake occured in region: 6 km NE Trevi (PG), on

  • 25-01-1993 23:26:21 (UTC)
  • 26-01-1993 00:26:21 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.9230, 12.7950 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
Trevi PG 6 8469 8469
Foligno PG 8 57155 65624
Sellano PG 11 1079 66703
Campello sul Clitunno PG 11 2442 69145
Montefalco PG 12 5679 74824
Spello PG 13 8645 83469
Castel Ritaldi PG 15 3278 86747
Bevagna PG 15 5081 91828
Cerreto di Spoleto PG 15 1075 92903
Valtopina PG 16 1398 94301
Vallo di Nera PG 18 364 94665
Monte Cavallo MC 19 145 94810
Cannara PG 19 4305 99115
Gualdo Cattaneo PG 20 6155 105270

Municipalities with at least 50000 inhabitants

An earthquake occurred to
8 Km E of Foligno (57155 inhabitants)
39 Km SE of Perugia (166134 inhabitants)
42 Km N of Terni (111501 inhabitants)
80 Km NE of Viterbo (67173 inhabitants)
80 Km W of Teramo (54892 inhabitants)
81 Km NW of L'Aquila (69753 inhabitants)
96 Km SE of Arezzo (99543 inhabitants)
97 Km SW of Ancona (100861 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
ML-VAX 1.5
1993-01-25
23:26:21
42.923 12.795 5 2013-07-15
08:41:04
Bollettino Sismico Italiano INGV 179359
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1993-01-25 23:26:21 ± 0.467
Latitude 42.9230 ± 0.0319
Longitude 12.7950 ± 0.0513
Depth (km) 5 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 179359

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) 5483.3
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 170
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) 0.6
Epicentral distance of station closest to the epicenter (degree) 0.00154
Epicentral distance of station farthest from the epicenter (degree) 0.01740
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:2.4

Field Value
Value 2.4
Uncertainty
Num. used stations 4
Type of magnitude Md
Reference to an origin 179359
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 19:48:13

ML:1.5

Field Value
Value 1.5
Uncertainty
Num. used stations 3
Type of magnitude ML
Reference to an origin 179359
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
--.ZC9.Z. 1993-01-25T23:26:55.00 10.0 undecidable manual PN 317 1.9314 0.33 1
--.SDI.Z. 1993-01-25T23:26:49.15 10.0 undecidable manual PN 147 1.4208 1.54 0.3
--.ARV.Z. 1993-01-25T23:26:44.20 10.0 undecidable manual SG 10 0.5883 1.16 0.3
--.CRE.Z. 1993-01-25T23:26:39.71 10.0 undecidable manual PG 318 0.9213 -0.34 1.6
--.AQU.Z. 1993-01-25T23:26:35.30 10.0 undecidable manual PG 141 0.7215 -1.21 0.7
--.ARV.Z. 1993-01-25T23:26:33.70 10.0 undecidable manual PG 10 0.5883 -0.63 1.4
--.ASS.Z. 1993-01-25T23:26:28.30 10.0 undecidable manual SG 323 0.1665 0.19 0.7
--.ASS.Z. 1993-01-25T23:26:24.97 10.0 undecidable manual PG 323 0.1665 -0.22 1.8
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