Earthquake with magnitude of Md 2.4 on date 13-02-1997 and time 13:54:36 (Italy) in region 5 km N Massa d'Albe (AQ)

A magnitude Md 2.4 earthquake occured in region: 5 km N Massa d'Albe (AQ), on

  • 13-02-1997 12:54:36 (UTC)
  • 13-02-1997 13:54:36 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.1530, 13.3810 at 26 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 5 1476 1476
Magliano de' Marsi AQ 7 3690 5166
Scurcola Marsicana AQ 10 2824 7990
Ovindoli AQ 12 1227 9217
Rocca di Mezzo AQ 13 1526 10743
Rocca di Cambio AQ 13 533 11276
Borgorose RI 13 4591 15867
Tagliacozzo AQ 14 6889 22756
Avezzano AQ 14 42515 65271
Sante Marie AQ 16 1166 66437
Celano AQ 16 11017 77454
Lucoli AQ 16 1011 78465
Ocre AQ 17 1167 79632
Tornimparte AQ 17 3187 82819
Fossa AQ 18 721 83540
Cappadocia AQ 18 528 84068
Villa Sant'Angelo AQ 18 424 84492
Castellafiume AQ 19 1106 85598
Aielli AQ 19 1475 87073
Sant'Eusanio Forconese AQ 19 394 87467
Fagnano Alto AQ 20 418 87885

Municipalities with at least 50000 inhabitants

An earthquake occurred to
22 Km S of L'Aquila (69753 inhabitants)
52 Km E of Tivoli (56533 inhabitants)
57 Km E of Guidonia Montecelio (88673 inhabitants)
62 Km SW of Teramo (54892 inhabitants)
69 Km W of Chieti (51815 inhabitants)
72 Km NE of Velletri (53303 inhabitants)
75 Km SW of Montesilvano (53738 inhabitants)
76 Km SE of Terni (111501 inhabitants)
77 Km W of Pescara (121014 inhabitants)
80 Km E of Roma (2864731 inhabitants)
86 Km NE of Latina (125985 inhabitants)
87 Km NE of Aprilia (73446 inhabitants)
90 Km NE of Pomezia (62966 inhabitants)
100 Km NE of Anzio (54211 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 2.4 1997-02-13
12:54:36
42.153 13.381 25 2013-07-15
08:40:51
Bollettino Sismico Italiano INGV 261159
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1997-02-13 12:54:36 ± 0.691
Latitude 42.1530 ± 0.0267
Longitude 13.3810 ± 0.0448
Depth (km) 25 ± 5 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 261159

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) 4740.8
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 139
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) 0.8
Epicentral distance of station closest to the epicenter (degree) 0.00113
Epicentral distance of station farthest from the epicenter (degree) 0.00510
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:2.4

Field Value
Value 2.4
Uncertainty
Num. used stations 3
Type of magnitude Md
Reference to an origin 261159
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 21:07:03
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
--.SDI.Z. 1997-02-13T12:54:58.54 10.0 undecidable manual SG 144 0.5439 1.63 0.1
--.MNS.Z. 1997-02-13T12:54:57.34 10.0 undecidable manual SG 294 0.5661 -0.19 0.6
--.MNS.Z. 1997-02-13T12:54:48.40 10.0 undecidable manual PG 294 0.5661 -0.7 1.2
--.SDI.Z. 1997-02-13T12:54:47.31 10.0 positive manual PG 144 0.5439 -1.07 1.6
--.AQU.Z. 1997-02-13T12:54:47.21 10.0 undecidable manual SG 4 0.1998 -0.05 0.8
--.PQ9.Z. 1997-02-13T12:54:45.60 10.0 undecidable manual SG 173 0.1221 -0.8 0.6
--.AQU.Z. 1997-02-13T12:54:43.55 10.0 undecidable manual PG 4 0.1998 0.74 1.5
--.PQ9.Z. 1997-02-13T12:54:42.77 10.0 undecidable manual PG 173 0.1221 0.77 1.5
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