Earthquake with magnitude of Md 2.1 on date 07-12-1997 and time 00:22:49 (Italy) in region 5 km NE Campotosto (AQ)

A magnitude Md 2.1 earthquake occured in region: 5 km NE Campotosto (AQ), on

  • 06-12-1997 23:22:49 (UTC)
  • 07-12-1997 00:22:49 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.6, 13.4 at 10 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
Campotosto AQ 5 542 542
Crognaleto TE 9 1297 1839
Cortino TE 10 656 2495
Amatrice RI 10 2657 5152
Capitignano AQ 11 665 5817
Fano Adriano TE 12 296 6113
Rocca Santa Maria TE 15 537 6650
Montereale AQ 15 2581 9231
Pietracamela TE 15 271 9502
Accumoli RI 17 667 10169
Valle Castellana TE 18 977 11146
Barete AQ 19 737 11883
Montorio al Vomano TE 19 8218 20101
Pizzoli AQ 19 4326 24427
Acquasanta Terme AP 20 2916 27343
Cittareale RI 20 482 27825

Municipalities with at least 50000 inhabitants

An earthquake occurred to
26 Km W of Teramo (54892 inhabitants)
27 Km N of L'Aquila (69753 inhabitants)
62 Km E of Terni (111501 inhabitants)
62 Km W of Montesilvano (53738 inhabitants)
68 Km W of Pescara (121014 inhabitants)
69 Km W of Chieti (51815 inhabitants)
69 Km SE of Foligno (57155 inhabitants)
86 Km NE of Tivoli (56533 inhabitants)
86 Km NE 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
Rev 1000 Md 2.1 1997-12-06
23:22:49
42.6 13.4 10 2013-07-15
08:41:04
Bollettino Sismico Italiano INGV 316039
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1997-12-06 23:22:49 ± 0.534
Latitude 42.60 ± 0.03
Longitude 13.40 ± 0.09
Depth (km) 10 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 316039

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) 7740.2
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 202
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) 0.6
Epicentral distance of station closest to the epicenter (degree) 0.0021
Epicentral distance of station farthest from the epicenter (degree) 0.00842
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:2.1

Field Value
Value 2.1
Uncertainty
Num. used stations 3
Type of magnitude Md
Reference to an origin 316039
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 21:56:19
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
--.PQ9.Z. 1997-12-06T23:23:10.10 10.0 undecidable manual SG 179 0.0051 0.3 0.6
--.SDI.Z. 1997-12-06T23:23:07.82 10.0 undecidable manual PG 160 0.0084 -0.14 1.2
--.PQ9.Z. 1997-12-06T23:23:02.37 10.0 undecidable manual PG 179 0.0051 1.15 0.5
--.NRCA.Z. 1997-12-06T23:23:01.94 10.0 undecidable manual SG 318 0.0028 0.36 0.7
--.AQU.Z. 1997-12-06T23:22:58.71 10.0 undecidable manual SG 179 0.0021 -0.44 0.6
--.NRCA.Z. 1997-12-06T23:22:56.80 10.0 undecidable manual PG 318 0.0028 -0.39 1.6
--.AQU.Z. 1997-12-06T23:22:54.15 10.0 negative manual PG 179 0.0021 -0.92 1.7
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
Download
Type Description Link
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