Earthquake with magnitude of Md 2.2 on date 15-08-1997 and time 16:32:57 (Italy) in region 9 km N Massa d'Albe (AQ)

A magnitude Md 2.2 earthquake occured in region: 9 km N Massa d'Albe (AQ), on

  • 15-08-1997 14:32:57 (UTC)
  • 15-08-1997 16:32:57 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.1940, 13.3870 at 8 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
Massa d'Albe AQ 9 1476 1476
Rocca di Cambio AQ 10 533 2009
Rocca di Mezzo AQ 11 1526 3535
Magliano de' Marsi AQ 11 3690 7225
Lucoli AQ 12 1011 8236
Ocre AQ 12 1167 9403
Borgorose RI 13 4591 13994
Ovindoli AQ 13 1227 15221
Tornimparte AQ 13 3187 18408
Fossa AQ 14 721 19129
Scurcola Marsicana AQ 15 2824 21953
Villa Sant'Angelo AQ 15 424 22377
Sant'Eusanio Forconese AQ 16 394 22771
Fagnano Alto AQ 17 418 23189
Tagliacozzo AQ 18 6889 30078
L'Aquila AQ 18 69753 99831
San Demetrio ne' Vestini AQ 18 1854 101685
Celano AQ 18 11017 112702
Sante Marie AQ 18 1166 113868
Avezzano AQ 18 42515 156383
Fontecchio AQ 19 369 156752
Poggio Picenze AQ 19 1136 157888
Pescorocchiano RI 20 2075 159963

Municipalities with at least 50000 inhabitants

An earthquake occurred to
18 Km S of L'Aquila (69753 inhabitants)
55 Km E of Tivoli (56533 inhabitants)
58 Km SW of Teramo (54892 inhabitants)
59 Km E of Guidonia Montecelio (88673 inhabitants)
67 Km W of Chieti (51815 inhabitants)
72 Km SW of Montesilvano (53738 inhabitants)
73 Km SE of Terni (111501 inhabitants)
74 Km W of Pescara (121014 inhabitants)
76 Km NE of Velletri (53303 inhabitants)
82 Km E of Roma (2864731 inhabitants)
90 Km NE of Latina (125985 inhabitants)
90 Km NE of Aprilia (73446 inhabitants)
94 Km NE of Pomezia (62966 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 2.2 1997-08-15
14:32:57
42.194 13.387 8 2013-07-15
08:40:51
Bollettino Sismico Italiano INGV 275679
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1997-08-15 14:32:57 ± 0.272
Latitude 42.1940 ± 0.0140
Longitude 13.3870 ± 0.0435
Depth (km) 8 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 275679

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) 3905.4
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 142
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) 0.4
Epicentral distance of station closest to the epicenter (degree) 0.00138
Epicentral distance of station farthest from the epicenter (degree) 0.00518
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:2.2

Field Value
Value 2.2
Uncertainty
Num. used stations 3
Type of magnitude Md
Reference to an origin 275679
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 21:20:27
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
--.MNS.Z. 1997-08-15T14:33:19.00 10.0 undecidable manual SG 290 0.5439 1.27 0.1
--.SDI.Z. 1997-08-15T14:33:17.93 10.0 undecidable manual SG 146 0.5772 -0.54 0.5
--.SDI.Z. 1997-08-15T14:33:10.10 10.0 undecidable manual PG 146 0.5772 0.38 1.4
--.MNS.Z. 1997-08-15T14:33:08.34 10.0 undecidable manual PG 290 0.5439 -0.87 0.6
--.PQ9.Z. 1997-08-15T14:33:04.21 10.0 undecidable manual SG 176 0.1665 -0.52 0.6
--.PQ9.Z. 1997-08-15T14:33:02.80 10.0 undecidable manual PG 176 0.1665 0.38 1.7
--.AQU.Z. 1997-08-15T14:33:01.46 10.0 undecidable manual PG 4 0.1554 0.02 2.1
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