Earthquake with magnitude of Md 2.0 on date 01-12-1997 and time 14:39:43 (Italy) in region 6 km E Cerreto di Spoleto (PG)

A magnitude Md 2.0 earthquake occured in region: 6 km E Cerreto di Spoleto (PG), on

  • 01-12-1997 13:39:43 (UTC)
  • 01-12-1997 14:39:43 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.84, 12.98 at 9 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
Preci PG 6 724 1799
Sellano PG 7 1079 2878
Norcia PG 10 4957 7835
Vallo di Nera PG 13 364 8199
Visso MC 13 1107 9306
Cascia PG 14 3217 12523
Poggiodomo PG 15 117 12640
Castelsantangelo sul Nera MC 15 281 12921
Sant'Anatolia di Narco PG 17 564 13485
Campello sul Clitunno PG 17 2442 15927
Ussita MC 17 444 16371
Monte Cavallo MC 17 145 16516
Scheggino PG 19 461 16977
Trevi PG 20 8469 25446

Municipalities with at least 50000 inhabitants

An earthquake occurred to
26 Km SE of Foligno (57155 inhabitants)
41 Km NE of Terni (111501 inhabitants)
57 Km SE of Perugia (166134 inhabitants)
62 Km W of Teramo (54892 inhabitants)
64 Km NW of L'Aquila (69753 inhabitants)
86 Km NE of Viterbo (67173 inhabitants)
96 Km N of Guidonia Montecelio (88673 inhabitants)
97 Km SW of Ancona (100861 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
Rev 1000 Md 2.0 1997-12-01
13:39:43
42.84 12.99 9 2013-07-15
08:40:51
Bollettino Sismico Italiano INGV 315049
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1997-12-01 13:39:43 ± 0.082
Latitude 42.84 ± 0.00
Longitude 12.99 ± 0.02
Depth (km) 9 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 315049

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) 1558.3
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 112
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) 0.1
Epicentral distance of station closest to the epicenter (degree) 0.00081
Epicentral distance of station farthest from the epicenter (degree) 0.00453
Number of stations at which the event was observed 4
Number of stations from which data was used for origin computation 4
Magnitude information

Md:2

Field Value
Value 2
Uncertainty
Num. used stations 3
Type of magnitude Md
Reference to an origin 315049
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 21:55:24
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
--.MNS.Z. 1997-12-01T13:40:01.63 10.0 undecidable manual SG 206 0.0045 0.09 0.6
--.SNTG.Z. 1997-12-01T13:39:58.41 10.0 undecidable manual SG 355 0.0037 -0.21 0.3
--.ASS.Z. 1997-12-01T13:39:55.53 10.0 undecidable manual SG 312 0.0029 -0.32 0.1
--.MNS.Z. 1997-12-01T13:39:53.66 10.0 undecidable manual PG 206 0.0045 -0.1 1.5
--.SNTG.Z. 1997-12-01T13:39:52.24 10.0 undecidable manual PG 355 0.0037 0.17 1.1
--.ASS.Z. 1997-12-01T13:39:50.61 10.0 undecidable manual PG 312 0.0029 0.14 1.5
--.NRCA.Z. 1997-12-01T13:39:47.72 10.0 undecidable manual SG 93 0.0008 -0.15 0.5
--.NRCA.Z. 1997-12-01T13:39:45.90 10.0 undecidable manual PG 93 0.0008 0.03 2.3
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
Download
Type Description Link
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