Earthquake with magnitude of Md 2.3 on date 05-12-1997 and time 18:36:42 (Italy) in region 6 km NE Montereale (AQ)

A magnitude Md 2.3 earthquake occured in region: 6 km NE Montereale (AQ), on

  • 05-12-1997 17:36:42 (UTC)
  • 05-12-1997 18:36:42 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.57, 13.27 at 24 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
Montereale AQ 6 2581 2581
Capitignano AQ 6 665 3246
Amatrice RI 6 2657 5903
Campotosto AQ 8 542 6445
Cittareale RI 10 482 6927
Cagnano Amiterno AQ 13 1369 8296
Borbona RI 13 617 8913
Barete AQ 14 737 9650
Accumoli RI 14 667 10317
Pizzoli AQ 15 4326 14643
Posta RI 15 694 15337
Crognaleto TE 17 1297 16634

Municipalities with at least 50000 inhabitants

An earthquake occurred to
27 Km NW of L'Aquila (69753 inhabitants)
37 Km W of Teramo (54892 inhabitants)
51 Km E of Terni (111501 inhabitants)
63 Km SE of Foligno (57155 inhabitants)
72 Km W of Montesilvano (53738 inhabitants)
78 Km W of Chieti (51815 inhabitants)
78 Km NE of Guidonia Montecelio (88673 inhabitants)
78 Km W of Pescara (121014 inhabitants)
78 Km NE of Tivoli (56533 inhabitants)
93 Km SE of Perugia (166134 inhabitants)
97 Km E of Viterbo (67173 inhabitants)
100 Km NE of Roma (2864731 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 1997-12-05
17:36:42
42.57 13.27 24 2013-07-15
08:40:51
Bollettino Sismico Italiano INGV 315879
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1997-12-05 17:36:42 ± 0.302
Latitude 42.57 ± 0.01
Longitude 13.27 ± 0.03
Depth (km) 24 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 315879

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) 2963
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 180
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) 0.2
Epicentral distance of station closest to the epicenter (degree) 0.0021
Epicentral distance of station farthest from the epicenter (degree) 0.00599
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 315879
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 21:56:10
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
--.ASS.Z. 1997-12-05T17:37:05.57 10.0 undecidable manual SN 317 0.006 -0.43 0.2
--.MNS.Z. 1997-12-05T17:37:00.91 10.0 undecidable manual SG 246 0.0042 0.77 0
--.ASS.Z. 1997-12-05T17:36:56.18 10.0 undecidable manual PN 317 0.006 0.2 1
--.NRCA.Z. 1997-12-05T17:36:54.24 10.0 undecidable manual SG 335 0.0025 -0.35 0.4
--.MNS.Z. 1997-12-05T17:36:52.34 10.0 positive manual PG 246 0.0042 -0.25 2.3
--.AQU.Z. 1997-12-05T17:36:52.72 10.0 undecidable manual SG 156 0.0021 -0.64 0.1
--.NRCA.Z. 1997-12-05T17:36:49.50 10.0 negative manual PG 335 0.0025 0.11 3
--.AQU.Z. 1997-12-05T17:36:49.30 10.0 undecidable manual PG 156 0.0021 0.35 0.9
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
Download
Type Description Link
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