Earthquake with magnitude of Md 2.2 on date 27-12-1998 and time 10:00:49 (Italy) in region 7 km SW Preci (PG)

A magnitude Md 2.2 earthquake occured in region: 7 km SW Preci (PG), on

  • 27-12-1998 09:00:49 (UTC)
  • 27-12-1998 10:00:49 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.8230, 13.0140 at 15 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
Preci PG 7 724 724
Norcia PG 7 4957 5681
Cerreto di Spoleto PG 8 1075 6756
Sellano PG 10 1079 7835
Cascia PG 12 3217 11052
Vallo di Nera PG 14 364 11416
Visso MC 14 1107 12523
Poggiodomo PG 14 117 12640
Castelsantangelo sul Nera MC 14 281 12921
Ussita MC 17 444 13365
Sant'Anatolia di Narco PG 18 564 13929
Monte Cavallo MC 19 145 14074
Scheggino PG 19 461 14535
Campello sul Clitunno PG 19 2442 16977
Monteleone di Spoleto PG 20 599 17576

Municipalities with at least 50000 inhabitants

An earthquake occurred to
29 Km SE of Foligno (57155 inhabitants)
42 Km NE of Terni (111501 inhabitants)
59 Km W of Teramo (54892 inhabitants)
60 Km SE of Perugia (166134 inhabitants)
61 Km NW of L'Aquila (69753 inhabitants)
87 Km NE of Viterbo (67173 inhabitants)
94 Km N of Guidonia Montecelio (88673 inhabitants)
97 Km N of Tivoli (56533 inhabitants)
97 Km SW of Ancona (100861 inhabitants)
99 Km W of Montesilvano (53738 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 1998-12-27
09:00:49
42.823 13.014 15 2013-07-15
08:40:51
Bollettino Sismico Italiano INGV 356959
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1998-12-27 09:00:49 ± 0.154
Latitude 42.8230 ± 0.0036
Longitude 13.0140 ± 0.0127
Depth (km) 15 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 356959

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) 1105.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 127
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) 0.00065
Epicentral distance of station farthest from the epicenter (degree) 0.00445
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:2.2

Field Value
Value 2.2
Uncertainty
Num. used stations 4
Type of magnitude Md
Reference to an origin 356959
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 22:34:36
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
--.MNS.Z. 1998-12-27T09:01:07.70 10.0 undecidable manual SG 209 0.4995 -0.04 0.5
--.SNTG.Z. 1998-12-27T09:01:05.45 10.0 undecidable manual SG 352 0.4329 -0.14 0.4
--.ASS.Z. 1998-12-27T09:01:03.40 10.0 undecidable manual SG 312 0.3552 -0.09 0.5
--.MNS.Z. 1998-12-27T09:01:00.30 10.0 positive manual PG 209 0.4995 -0.05 2.6
--.SNTG.Z. 1998-12-27T09:00:58.73 10.0 undecidable manual PG 352 0.4329 -0.11 1.1
--.ASS.Z. 1998-12-27T09:00:57.62 10.0 undecidable manual PG 312 0.3552 0.2 0.6
--.NRCA.Z. 1998-12-27T09:00:54.87 10.0 undecidable manual SG 82 0.0666 -0.34 0
--.NRCA.Z. 1998-12-27T09:00:52.97 10.0 positive manual PG 82 0.0666 0.13 2.2
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