Earthquake with magnitude of Md 2.3 on date 15-11-1998 and time 17:51:53 (Italy) in region 6 km W Arquata del Tronto (AP)

A magnitude Md 2.3 earthquake occured in region: 6 km W Arquata del Tronto (AP), on

  • 15-11-1998 16:51:53 (UTC)
  • 15-11-1998 17:51:53 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.79, 13.23 at 12 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
Arquata del Tronto AP 6 1178 1178
Accumoli RI 10 667 1845
Montegallo AP 11 523 2368
Norcia PG 11 4957 7325
Castelsantangelo sul Nera MC 14 281 7606
Acquasanta Terme AP 15 2916 10522
Montemonaco AP 15 604 11126
Amatrice RI 18 2657 13783
Preci PG 19 724 14507
Ussita MC 19 444 14951
Cascia PG 19 3217 18168
Cittareale RI 20 482 18650
Montefortino FM 20 1178 19828
Visso MC 20 1107 20935

Municipalities with at least 50000 inhabitants

An earthquake occurred to
41 Km W of Teramo (54892 inhabitants)
47 Km E of Foligno (57155 inhabitants)
50 Km N of L'Aquila (69753 inhabitants)
54 Km E of Terni (111501 inhabitants)
77 Km E of Perugia (166134 inhabitants)
81 Km W of Montesilvano (53738 inhabitants)
88 Km W of Pescara (121014 inhabitants)
91 Km NW of Chieti (51815 inhabitants)
95 Km S of Ancona (100861 inhabitants)
97 Km NE of Guidonia Montecelio (88673 inhabitants)
98 Km NE 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 2.3 1998-11-15
16:51:53
42.79 13.23 12 2013-07-15
08:40:51
Bollettino Sismico Italiano INGV 354919
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1998-11-15 16:51:53 ± 0.658
Latitude 42.79 ± 0.02
Longitude 13.23 ± 0.06
Depth (km) 12 ± 4 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 354919

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) 5430
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 249
Number of associated phases, regardless of their use for origin computation 7
Number of defining phases 7
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.3
Epicentral distance of station closest to the epicenter (degree) 0.00089
Epicentral distance of station farthest from the epicenter (degree) 0.0051
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:2.3

Field Value
Value 2.3
Uncertainty
Num. used stations 4
Type of magnitude Md
Reference to an origin 354919
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 22:32:40
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
--.ASS.Z. 1998-11-15T16:52:12.00 10.0 undecidable manual SG 303 0.0045 0.48 0.3
--.SNTG.Z. 1998-11-15T16:52:11.30 10.0 undecidable manual SG 335 0.0046 -0.48 0.3
--.MNS.Z. 1998-11-15T16:52:04.76 10.0 undecidable manual PG 225 0.0051 -0.25 1.1
--.SNTG.Z. 1998-11-15T16:52:03.86 10.0 undecidable manual PG 335 0.0046 -0.12 1.5
--.ASS.Z. 1998-11-15T16:52:03.93 10.0 undecidable manual PG 303 0.0045 0.1 1.5
--.NRCA.Z. 1998-11-15T16:51:57.85 10.0 undecidable manual SG 298 0.0009 -0.91 0
--.NRCA.Z. 1998-11-15T16:51:56.79 10.0 negative manual PG 298 0.0009 0.32 2.4
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
Download
Type Description Link
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