Earthquake with magnitude of Md 2.2 on date 01-02-1998 and time 23:19:54 (Italy) in region 4 km SE Sellano (PG)

A magnitude Md 2.2 earthquake occured in region: 4 km SE Sellano (PG), on

  • 01-02-1998 22:19:54 (UTC)
  • 01-02-1998 23:19:54 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.8730, 12.9670 at 8 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
Sellano PG 4 1079 1079
Preci PG 6 724 1803
Cerreto di Spoleto PG 7 1075 2878
Visso MC 12 1107 3985
Norcia PG 14 4957 8942
Monte Cavallo MC 14 145 9087
Vallo di Nera PG 14 364 9451
Castelsantangelo sul Nera MC 15 281 9732
Ussita MC 16 444 10176
Campello sul Clitunno PG 17 2442 12618
Cascia PG 18 3217 15835
Trevi PG 18 8469 24304
Poggiodomo PG 18 117 24421
Sant'Anatolia di Narco PG 19 564 24985

Municipalities with at least 50000 inhabitants

An earthquake occurred to
23 Km E of Foligno (57155 inhabitants)
43 Km NE of Terni (111501 inhabitants)
54 Km E of Perugia (166134 inhabitants)
65 Km W of Teramo (54892 inhabitants)
68 Km NW of L'Aquila (69753 inhabitants)
87 Km NE of Viterbo (67173 inhabitants)
94 Km SW of Ancona (100861 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 2.2 1998-02-01
22:19:54
42.873 12.967 8 2013-07-15
08:40:51
Bollettino Sismico Italiano INGV 321949
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1998-02-01 22:19:54 ± 0.128
Latitude 42.8730 ± 0.0043
Longitude 12.9670 ± 0.0148
Depth (km) 8 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 321949

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) 1301.5
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 111
Number of associated phases, regardless of their use for origin computation 10
Number of defining phases 10
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) 0.00097
Epicentral distance of station farthest from the epicenter (degree) 0.00559
Number of stations at which the event was observed 5
Number of stations from which data was used for origin computation 5
Magnitude information

Md:2.2

Field Value
Value 2.2
Uncertainty
Num. used stations 5
Type of magnitude Md
Reference to an origin 321949
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 22:01:50
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
--.ARV.Z. 1998-02-01T22:20:16.58 10.0 undecidable manual SG 358 0.6216 -0.45 0.1
--.MNS.Z. 1998-02-01T22:20:14.10 10.0 undecidable manual SG 203 0.5328 0.11 0.6
--.SNTG.Z. 1998-02-01T22:20:09.19 10.0 undecidable manual SG 357 0.3774 -0.02 0.9
--.ARV.Z. 1998-02-01T22:20:07.68 10.0 undecidable manual PG 358 0.6216 0.09 1.5
--.ASS.Z. 1998-02-01T22:20:06.59 10.0 undecidable manual SG 309 0.2997 0.09 0.8
--.MNS.Z. 1998-02-01T22:20:05.77 10.0 undecidable manual PG 203 0.5328 -0.06 1.8
--.SNTG.Z. 1998-02-01T22:20:03.33 10.0 undecidable manual PG 357 0.3774 0.25 1
--.ASS.Z. 1998-02-01T22:20:01.47 10.0 undecidable manual PG 309 0.2997 -0.04 2.1
--.NRCA.Z. 1998-02-01T22:20:00.34 10.0 undecidable manual SG 110 0.111 0.4 0.1
--.NRCA.Z. 1998-02-01T22:19:57.47 10.0 undecidable manual PG 110 0.111 -0.26 1
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