Earthquake with magnitude of Md 2.1 on date 18-02-1997 and time 09:34:25 (UTC) in region 4 km E Rivisondoli (AQ)

A magnitude Md 2.1 earthquake occured in region: 4 km E Rivisondoli (AQ), on

  • 18-02-1997 09:34:25 (UTC)
  • 18-02-1997 10:34:25 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 41.8750, 14.1130 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
Rivisondoli AQ 4 700 700
Roccaraso AQ 4 1627 2327
Pescocostanzo AQ 4 1128 3455
Ateleta AQ 7 1181 4636
Gamberale CH 9 320 4956
Castel di Sangro AQ 10 6538 11494
Castel del Giudice IS 10 346 11840
San Pietro Avellana IS 11 503 12343
Pizzoferrato CH 12 1130 13473
Sant'Angelo del Pesco IS 12 364 13837
Palena CH 12 1392 15229
Rocca Pia AQ 13 178 15407
Capracotta IS 13 903 16310
Lettopalena CH 15 358 16668
Pescopennataro IS 15 285 16953
Scontrone AQ 15 574 17527
Quadri CH 16 815 18342
Montenerodomo CH 16 690 19032
Campo di Giove AQ 16 803 19835
Colledimacine CH 16 202 20037
Barrea AQ 16 726 20763
Vastogirardi IS 17 704 21467
Borrello CH 17 354 21821
Pettorano sul Gizio AQ 17 1376 23197
Cansano AQ 17 274 23471
Taranta Peligna CH 17 376 23847
Alfedena AQ 17 864 24711
Civitaluparella CH 18 351 25062
Rionero Sannitico IS 18 1118 26180
Montenero Val Cocchiara IS 18 538 26718
Civitella Alfedena AQ 19 296 27014
Villetta Barrea AQ 19 653 27667
Fallo CH 19 139 27806
Scanno AQ 19 1847 29653
Lama dei Peligni CH 20 1271 30924
Rosello CH 20 237 31161

Municipalities with at least 50000 inhabitants

An earthquake occurred to
53 Km S of Chieti (51815 inhabitants)
66 Km S of Pescara (121014 inhabitants)
71 Km S of Montesilvano (53738 inhabitants)
79 Km SE of L'Aquila (69753 inhabitants)
91 Km N of Caserta (76326 inhabitants)
94 Km SE of Teramo (54892 inhabitants)
100 Km NW of Benevento (60091 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 2.1 1997-02-18
09:34:25
41.875 14.113 10 2013-07-15
08:41:04
Bollettino Sismico Italiano INGV 261349
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1997-02-18 09:34:25 ± 0.869
Latitude 41.8750 ± 0.0515
Longitude 14.1130 ± 0.0254
Depth (km) 10 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 261349

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) 6102.1
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 256
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) 0.4
Epicentral distance of station closest to the epicenter (degree) 0.00251
Epicentral distance of station farthest from the epicenter (degree) 0.00308
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 1
Type of magnitude Md
Reference to an origin 261349
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 21:07:13
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
--.DUI.Z. 1997-02-18T09:34:39.20 10.0 undecidable manual SG 129 0.333 0.99 0.1
--.PLI2.Z. 1997-02-18T09:34:39.80 10.0 undecidable manual SG 186 0.3441 0.55 0.3
--.CPI2.Z. 1997-02-18T09:34:36.69 10.0 undecidable manual SG 151 0.3219 -1.26 0
--.SDI.Z. 1997-02-18T09:34:36.50 10.0 undecidable manual SG 233 0.2775 0.08 0.6
--.PLI2.Z. 1997-02-18T09:34:33.37 10.0 positive manual PG 186 0.3441 0.34 2.3
--.DUI.Z. 1997-02-18T09:34:33.11 10.0 undecidable manual PG 129 0.333 0.26 1.3
--.CPI2.Z. 1997-02-18T09:34:32.29 10.0 positive manual PG 151 0.3219 -0.41 2.1
--.SDI.Z. 1997-02-18T09:34:31.50 10.0 undecidable manual PG 233 0.2775 -0.31 1.2
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