Earthquake with magnitude of Md 2.4 on date 28-02-1998 and time 03:11:14 (Italy) in region 4 km E Cerreto di Spoleto (PG)

A magnitude Md 2.4 earthquake occured in region: 4 km E Cerreto di Spoleto (PG), on

  • 28-02-1998 02:11:14 (UTC)
  • 28-02-1998 03:11:14 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.82, 12.97 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
Cerreto di Spoleto PG 4 1075 1075
Sellano PG 8 1079 2154
Preci PG 9 724 2878
Vallo di Nera PG 10 364 3242
Norcia PG 11 4957 8199
Cascia PG 12 3217 11416
Poggiodomo PG 12 117 11533
Sant'Anatolia di Narco PG 14 564 12097
Campello sul Clitunno PG 15 2442 14539
Visso MC 16 1107 15646
Scheggino PG 16 461 16107
Castelsantangelo sul Nera MC 18 281 16388
Monteleone di Spoleto PG 19 599 16987
Trevi PG 19 8469 25456
Monte Cavallo MC 20 145 25601
Ussita MC 20 444 26045

Municipalities with at least 50000 inhabitants

An earthquake occurred to
26 Km SE of Foligno (57155 inhabitants)
39 Km NE of Terni (111501 inhabitants)
57 Km SE of Perugia (166134 inhabitants)
63 Km W of Teramo (54892 inhabitants)
63 Km NW of L'Aquila (69753 inhabitants)
83 Km NE of Viterbo (67173 inhabitants)
93 Km N of Guidonia Montecelio (88673 inhabitants)
96 Km N of Tivoli (56533 inhabitants)
99 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
Rev 1000 Md 2.4 1998-02-28
02:11:14
42.82 12.97 5 2013-07-15
08:41:04
Bollettino Sismico Italiano INGV 323999
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1998-02-28 02:11:14 ± 0.232
Latitude 42.82 ± 0.01
Longitude 12.97 ± 0.03
Depth (km) 5 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 323999

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) 2592.4
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 147
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) 0.5
Epicentral distance of station closest to the epicenter (degree) 0.00186
Epicentral distance of station farthest from the epicenter (degree) 0.00793
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:2.4

Field Value
Value 2.4
Uncertainty
Num. used stations 3
Type of magnitude Md
Reference to an origin 323999
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 22:03:45
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
--.FB9.Z. 1998-02-28T02:11:33.18 10.0 undecidable manual PG 351 0.0079 0.71 0.7
--.MNS.Z. 1998-02-28T02:11:32.80 10.0 undecidable manual SG 205 0.0043 -0.76 0.4
--.SNTG.Z. 1998-02-28T02:11:30.42 10.0 undecidable manual SG 357 0.0039 -0.86 0.3
--.AQU.Z. 1998-02-28T02:11:27.13 10.0 undecidable manual PG 145 0.005 0.52 1.3
--.ASS.Z. 1998-02-28T02:11:27.64 10.0 undecidable manual SG 316 0.003 0.22 0.8
--.MNS.Z. 1998-02-28T02:11:24.89 10.0 undecidable manual PG 205 0.0043 -0.19 1.9
--.SNTG.Z. 1998-02-28T02:11:23.15 10.0 undecidable manual PG 357 0.0039 -1.03 0.5
--.CLF9.Z. 1998-02-28T02:11:23.16 10.0 undecidable manual SG 352 0.0019 0.26 0.8
--.ASS.Z. 1998-02-28T02:11:22.46 10.0 undecidable manual PG 316 0.003 0.52 1.4
--.CLF9.Z. 1998-02-28T02:11:19.25 10.0 undecidable manual PG 352 0.0019 -0.08 2.1
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
Download
Type Description Link
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