Earthquake with magnitude of Md 2.2 on date 28-11-1997 and time 21:34:22 (Italy) in region 6 km SW Castelsantangelo sul Nera (MC)

A magnitude Md 2.2 earthquake occured in region: 6 km SW Castelsantangelo sul Nera (MC), on

  • 28-11-1997 20:34:22 (UTC)
  • 28-11-1997 21:34:22 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.8570, 13.1110 at 19 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
Castelsantangelo sul Nera MC 6 281 281
Preci PG 6 724 1005
Norcia PG 7 4957 5962
Visso MC 9 1107 7069
Ussita MC 10 444 7513
Sellano PG 15 1079 8592
Cerreto di Spoleto PG 16 1075 9667
Cascia PG 17 3217 12884
Monte Cavallo MC 18 145 13029
Arquata del Tronto AP 18 1178 14207
Bolognola MC 18 142 14349
Montegallo AP 18 523 14872
Montemonaco AP 18 604 15476
Acquacanina MC 20 121 15597

Municipalities with at least 50000 inhabitants

An earthquake occurred to
35 Km E of Foligno (57155 inhabitants)
50 Km NE of Terni (111501 inhabitants)
53 Km W of Teramo (54892 inhabitants)
61 Km NW of L'Aquila (69753 inhabitants)
65 Km E of Perugia (166134 inhabitants)
91 Km SW of Ancona (100861 inhabitants)
93 Km W of Montesilvano (53738 inhabitants)
96 Km NE of Viterbo (67173 inhabitants)
100 Km NE 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 2.2 1997-11-28
20:34:22
42.857 13.111 19 2013-07-15
08:40:51
Bollettino Sismico Italiano INGV 314399
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1997-11-28 20:34:22 ± 0.137
Latitude 42.8570 ± 0.0046
Longitude 13.1110 ± 0.0181
Depth (km) 19 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 314399

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) 1560.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 187
Number of associated phases, regardless of their use for origin computation 11
Number of defining phases 11
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) 0.00016
Epicentral distance of station farthest from the epicenter (degree) 0.00777
Number of stations at which the event was observed 6
Number of stations from which data was used for origin computation 6
Magnitude information

Md:2.2

Field Value
Value 2.2
Uncertainty
Num. used stations 4
Type of magnitude Md
Reference to an origin 314399
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 21:54:49
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
--.ARV.Z. 1997-11-28T20:34:46.24 10.0 undecidable manual SG 349 0.6438 0.38 0.1
--.MNS.Z. 1997-11-28T20:34:43.23 10.0 undecidable manual SG 213 0.5661 0.02 0.8
--.FB9.Z. 1997-11-28T20:34:39.85 10.0 undecidable manual PN 343 0.8658 0.02 1.5
--.ASS.Z. 1997-11-28T20:34:38.70 10.0 undecidable manual SG 301 0.3885 0.36 0.2
--.SNTG.Z. 1997-11-28T20:34:38.39 10.0 undecidable manual SG 342 0.4107 -0.02 0.9
--.ARV.Z. 1997-11-28T20:34:36.70 10.0 undecidable manual PG 349 0.6438 -0.05 1.7
--.MNS.Z. 1997-11-28T20:34:34.64 10.0 undecidable manual PG 213 0.5661 0.05 1.9
--.SNTG.Z. 1997-11-28T20:34:31.71 10.0 undecidable manual PG 342 0.4107 -0.11 1.9
--.ASS.Z. 1997-11-28T20:34:31.90 10.0 undecidable manual PG 301 0.3885 -0.32 0.6
--.NRCA.Z. 1997-11-28T20:34:28.50 10.0 undecidable manual SG 176 0.0222 -0.32 0.3
--.NRCA.Z. 1997-11-28T20:34:26.52 10.0 undecidable manual PG 176 0.0222 0.24 1.1
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
Download
Type Description Link
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