Earthquake with magnitude of Md 2.2 on date 08-08-1988 and time 02:19:59 (UTC) in region 4 km E Acquasanta Terme (AP)

A magnitude Md 2.2 earthquake occured in region: 4 km E Acquasanta Terme (AP), on

  • 08-08-1988 02:19:59 (UTC)
  • 08-08-1988 04:19:59 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.77, 13.46 at 5 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
Acquasanta Terme AP 4 2916 2916
Valle Castellana TE 5 977 3893
Roccafluvione AP 11 2010 5903
Rocca Santa Maria TE 11 537 6440
Arquata del Tronto AP 13 1178 7618
Montegallo AP 13 523 8141
Venarotta AP 13 2066 10207
Ascoli Piceno AP 14 49407 59614
Palmiano AP 15 196 59810
Folignano AP 16 9241 69051
Cortino TE 17 656 69707
Civitella del Tronto TE 17 5116 74823
Montemonaco AP 18 604 75427
Accumoli RI 19 667 76094
Campli TE 19 7209 83303

Municipalities with at least 50000 inhabitants

An earthquake occurred to
24 Km NW of Teramo (54892 inhabitants)
47 Km N of L'Aquila (69753 inhabitants)
63 Km W of Montesilvano (53738 inhabitants)
65 Km E of Foligno (57155 inhabitants)
70 Km E of Terni (111501 inhabitants)
71 Km W of Pescara (121014 inhabitants)
75 Km NW of Chieti (51815 inhabitants)
95 Km S of Ancona (100861 inhabitants)
95 Km E of Perugia (166134 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 2.2 1988-08-08
02:19:59
42.77 13.46 5 2013-07-15
08:41:04
Bollettino Sismico Italiano INGV 74989
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1988-08-08 02:19:59 ± 0.264
Latitude 42.77 ± 0.02
Longitude 13.46 ± 0.02
Depth (km) 5 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 74989

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) 2440.7
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 84
Number of associated phases, regardless of their use for origin computation 16
Number of defining phases 16
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) 0.00073
Epicentral distance of station farthest from the epicenter (degree) 0.00979
Number of stations at which the event was observed 9
Number of stations from which data was used for origin computation 9
Magnitude information

Md:2.2

Field Value
Value 2.2
Uncertainty
Num. used stations 4
Type of magnitude Md
Reference to an origin 74989
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 18:10:43
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
--.ARV.Z. 1988-08-08T02:20:29.50 10.0 undecidable manual SG 333 0.0074 0.9 0.3
--.AM8.Z. 1988-08-08T02:20:28.63 10.0 undecidable manual SG 7 0.007 1.08 0.2
--.AZI.Z. 1988-08-08T02:20:28.50 10.0 undecidable manual SG 181 0.007 1.18 0.2
--.ASS.Z. 1988-08-08T02:20:24.65 10.0 undecidable manual SG 296 0.0059 1.28 0.2
--.MNS.Z. 1988-08-08T02:20:23.40 10.0 undecidable manual SG 236 0.0062 -1.27 0.2
--.SDI.Z. 1988-08-08T02:20:20.71 10.0 undecidable manual PN 166 0.0098 -0.48 1.2
--.CM8.Z. 1988-08-08T02:20:17.67 10.0 undecidable manual SG 332 0.0043 -0.12 1.2
--.AZI.Z. 1988-08-08T02:20:17.50 10.0 undecidable manual PG? 181 0.007 1.98 0
--.ARV.Z. 1988-08-08T02:20:16.32 10.0 undecidable manual PG 333 0.0074 0.07 1.7
--.AM8.Z. 1988-08-08T02:20:15.59 10.0 undecidable manual PG 7 0.007 -0.06 1.8
--.MNS.Z. 1988-08-08T02:20:13.52 10.0 undecidable manual PG 236 0.0062 -0.25 1.8
--.ASS.Z. 1988-08-08T02:20:13.42 10.0 undecidable manual PG 296 0.0059 0.18 1.9
--.CM8.Z. 1988-08-08T02:20:09.60 10.0 undecidable manual PG 332 0.0043 -0.95 0.8
--.SS8.Z. 1988-08-08T02:20:05.73 10.0 undecidable manual PG 325 0.0026 -0.2 1.9
--.ALP.Z. 1988-08-08T02:20:03.22 10.0 undecidable manual SG 81 0.0007 0.2 1.2
--.ALP.Z. 1988-08-08T02:20:00.99 10.0 undecidable manual PG 81 0.0007 -0.49 1.6
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
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